xgboost原理与实战

目录

  xgboost原理

  xgboost和gbdt的区别

  xgboost安装

  实战


 

xgboost原理

  xgboost是一个提升模型,即训练多个分类器,然后将这些分类器串联起来,达到最终的预测效果。每一个基分类器都是一个弱分类器,但是很多串联起来后效果很强大。

  工作原理:

 

  每次加入一棵新树是为了让目标函数进一步下降。当然,加入了新树之后obj可以反映当前损失值;那么这棵新树如何分裂呢?可以使用泰勒公式构造一个Gain来决定当前树模型的划分。

  xgboost支持自定义损失函数

 返回目录

 

xgboost和gbdt的区别 

  • 传统GBDT以CART作为基分类器,xgboost还支持线性分类器,这个时候xgboost相当于带L1和L2正则化项的逻辑斯蒂回归(分类问题)或者线性回归(回归问题)。
  • 传统GBDT在优化时只用到一阶导数信息,xgboost则对代价函数进行了二阶泰勒展开,同时用到了一阶和二阶导数。顺便提一下,xgboost工具支持自定义代价函数,只要函数可一阶和二阶求导。
  • xgboost在代价函数里加入了正则项,用于控制模型的复杂度。正则项里包含了树的叶子节点个数、每个叶子节点上输出的score的L2模的平方和。从Bias-variance tradeoff角度来讲,正则项降低了模型的variance,使学习出来的模型更加简单,防止过拟合,这也是xgboost优于传统GBDT的一个特性。
  • 列抽样column subsampling)。xgboost借鉴了随机森林的做法,支持列抽样,不仅能降低过拟合,还能减少计算,这也是xgboost异于传统gbdt的一个特性。
  • 对缺失值的处理。对于特征的值有缺失的样本,xgboost可以自动学习出它的分裂方向
  • xgboost工具支持并行。boosting不是一种串行的结构吗?怎么并行的?注意xgboost的并行不是tree粒度的并行,xgboost也是一次迭代完才能进行下一次迭代的(第t次迭代的代价函数里包含了前面t-1次迭代的预测值)。xgboost的并行是在特征粒度上的。我们知道,决策树的学习最耗时的一个步骤就是对特征的值进行排序(因为要确定最佳分割点),xgboost在训练之前,预先对数据进行了排序,然后保存为block结构,后面的迭代中重复地使用这个结构,大大减小计算量。这个block结构也使得并行成为了可能,在进行节点的分裂时,需要计算每个特征的增益,最终选增益最大的那个特征去做分裂,那么各个特征的增益计算就可以开多线程进行

 返回目录

 

xgboost安装 

  下载地址:

  https://www.lfd.uci.edu/~gohlke/pythonlibs/#xgboost

 

  执行:

  pip install xxx.whl

 返回目录

 

实战 

 

# -*- coding: utf-8 -*-
import xgboost

# First XGBoost model for Pima Indians dataset
from numpy import loadtxt
from xgboost import XGBClassifier
from sklearn.model_selection import train_test_split
from sklearn.metrics import accuracy_score
# load data
dataset = loadtxt('pima-indians-diabetes.csv', delimiter=",")
# split data into X and y
X = dataset[:,0:8]
Y = dataset[:,8]
# split data into train and test sets
seed = 7
test_size = 0.33
X_train, X_test, y_train, y_test = train_test_split(X, Y, test_size=test_size, random_state=seed)
# fit model no training data
model = XGBClassifier()
model.fit(X_train, y_train)
# make predictions for test data
y_pred = model.predict(X_test)
predictions = [round(value) for value in y_pred]
# evaluate predictions
accuracy = accuracy_score(y_test, predictions)
print("Accuracy: %.2f%%" % (accuracy * 100.0))

 

 

6    148    72    35    0    33.6    0.627    50    1
1    85    66    29    0    26.6    0.351    31    0
8    183    64    0    0    23.3    0.672    32    1
1    89    66    23    94    28.1    0.167    21    0
0    137    40    35    168    43.1    2.288    33    1
5    116    74    0    0    25.6    0.201    30    0
3    78    50    32    88    31    0.248    26    1
10    115    0    0    0    35.3    0.134    29    0
2    197    70    45    543    30.5    0.158    53    1
8    125    96    0    0    0    0.232    54    1
4    110    92    0    0    37.6    0.191    30    0
10    168    74    0    0    38    0.537    34    1
10    139    80    0    0    27.1    1.441    57    0
1    189    60    23    846    30.1    0.398    59    1
5    166    72    19    175    25.8    0.587    51    1
7    100    0    0    0    30    0.484    32    1
0    118    84    47    230    45.8    0.551    31    1
7    107    74    0    0    29.6    0.254    31    1
1    103    30    38    83    43.3    0.183    33    0
1    115    70    30    96    34.6    0.529    32    1
3    126    88    41    235    39.3    0.704    27    0
8    99    84    0    0    35.4    0.388    50    0
7    196    90    0    0    39.8    0.451    41    1
9    119    80    35    0    29    0.263    29    1
11    143    94    33    146    36.6    0.254    51    1
10    125    70    26    115    31.1    0.205    41    1
7    147    76    0    0    39.4    0.257    43    1
1    97    66    15    140    23.2    0.487    22    0
13    145    82    19    110    22.2    0.245    57    0
5    117    92    0    0    34.1    0.337    38    0
5    109    75    26    0    36    0.546    60    0
3    158    76    36    245    31.6    0.851    28    1
3    88    58    11    54    24.8    0.267    22    0
6    92    92    0    0    19.9    0.188    28    0
10    122    78    31    0    27.6    0.512    45    0
4    103    60    33    192    24    0.966    33    0
11    138    76    0    0    33.2    0.42    35    0
9    102    76    37    0    32.9    0.665    46    1
2    90    68    42    0    38.2    0.503    27    1
4    111    72    47    207    37.1    1.39    56    1
3    180    64    25    70    34    0.271    26    0
7    133    84    0    0    40.2    0.696    37    0
7    106    92    18    0    22.7    0.235    48    0
9    171    110    24    240    45.4    0.721    54    1
7    159    64    0    0    27.4    0.294    40    0
0    180    66    39    0    42    1.893    25    1
1    146    56    0    0    29.7    0.564    29    0
2    71    70    27    0    28    0.586    22    0
7    103    66    32    0    39.1    0.344    31    1
7    105    0    0    0    0    0.305    24    0
1    103    80    11    82    19.4    0.491    22    0
1    101    50    15    36    24.2    0.526    26    0
5    88    66    21    23    24.4    0.342    30    0
8    176    90    34    300    33.7    0.467    58    1
7    150    66    42    342    34.7    0.718    42    0
1    73    50    10    0    23    0.248    21    0
7    187    68    39    304    37.7    0.254    41    1
0    100    88    60    110    46.8    0.962    31    0
0    146    82    0    0    40.5    1.781    44    0
0    105    64    41    142    41.5    0.173    22    0
2    84    0    0    0    0    0.304    21    0
8    133    72    0    0    32.9    0.27    39    1
5    44    62    0    0    25    0.587    36    0
2    141    58    34    128    25.4    0.699    24    0
7    114    66    0    0    32.8    0.258    42    1
5    99    74    27    0    29    0.203    32    0
0    109    88    30    0    32.5    0.855    38    1
2    109    92    0    0    42.7    0.845    54    0
1    95    66    13    38    19.6    0.334    25    0
4    146    85    27    100    28.9    0.189    27    0
2    100    66    20    90    32.9    0.867    28    1
5    139    64    35    140    28.6    0.411    26    0
13    126    90    0    0    43.4    0.583    42    1
4    129    86    20    270    35.1    0.231    23    0
1    79    75    30    0    32    0.396    22    0
1    0    48    20    0    24.7    0.14    22    0
7    62    78    0    0    32.6    0.391    41    0
5    95    72    33    0    37.7    0.37    27    0
0    131    0    0    0    43.2    0.27    26    1
2    112    66    22    0    25    0.307    24    0
3    113    44    13    0    22.4    0.14    22    0
2    74    0    0    0    0    0.102    22    0
7    83    78    26    71    29.3    0.767    36    0
0    101    65    28    0    24.6    0.237    22    0
5    137    108    0    0    48.8    0.227    37    1
2    110    74    29    125    32.4    0.698    27    0
13    106    72    54    0    36.6    0.178    45    0
2    100    68    25    71    38.5    0.324    26    0
15    136    70    32    110    37.1    0.153    43    1
1    107    68    19    0    26.5    0.165    24    0
1    80    55    0    0    19.1    0.258    21    0
4    123    80    15    176    32    0.443    34    0
7    81    78    40    48    46.7    0.261    42    0
4    134    72    0    0    23.8    0.277    60    1
2    142    82    18    64    24.7    0.761    21    0
6    144    72    27    228    33.9    0.255    40    0
2    92    62    28    0    31.6    0.13    24    0
1    71    48    18    76    20.4    0.323    22    0
6    93    50    30    64    28.7    0.356    23    0
1    122    90    51    220    49.7    0.325    31    1
1    163    72    0    0    39    1.222    33    1
1    151    60    0    0    26.1    0.179    22    0
0    125    96    0    0    22.5    0.262    21    0
1    81    72    18    40    26.6    0.283    24    0
2    85    65    0    0    39.6    0.93    27    0
1    126    56    29    152    28.7    0.801    21    0
1    96    122    0    0    22.4    0.207    27    0
4    144    58    28    140    29.5    0.287    37    0
3    83    58    31    18    34.3    0.336    25    0
0    95    85    25    36    37.4    0.247    24    1
3    171    72    33    135    33.3    0.199    24    1
8    155    62    26    495    34    0.543    46    1
1    89    76    34    37    31.2    0.192    23    0
4    76    62    0    0    34    0.391    25    0
7    160    54    32    175    30.5    0.588    39    1
4    146    92    0    0    31.2    0.539    61    1
5    124    74    0    0    34    0.22    38    1
5    78    48    0    0    33.7    0.654    25    0
4    97    60    23    0    28.2    0.443    22    0
4    99    76    15    51    23.2    0.223    21    0
0    162    76    56    100    53.2    0.759    25    1
6    111    64    39    0    34.2    0.26    24    0
2    107    74    30    100    33.6    0.404    23    0
5    132    80    0    0    26.8    0.186    69    0
0    113    76    0    0    33.3    0.278    23    1
1    88    30    42    99    55    0.496    26    1
3    120    70    30    135    42.9    0.452    30    0
1    118    58    36    94    33.3    0.261    23    0
1    117    88    24    145    34.5    0.403    40    1
0    105    84    0    0    27.9    0.741    62    1
4    173    70    14    168    29.7    0.361    33    1
9    122    56    0    0    33.3    1.114    33    1
3    170    64    37    225    34.5    0.356    30    1
8    84    74    31    0    38.3    0.457    39    0
2    96    68    13    49    21.1    0.647    26    0
2    125    60    20    140    33.8    0.088    31    0
0    100    70    26    50    30.8    0.597    21    0
0    93    60    25    92    28.7    0.532    22    0
0    129    80    0    0    31.2    0.703    29    0
5    105    72    29    325    36.9    0.159    28    0
3    128    78    0    0    21.1    0.268    55    0
5    106    82    30    0    39.5    0.286    38    0
2    108    52    26    63    32.5    0.318    22    0
10    108    66    0    0    32.4    0.272    42    1
4    154    62    31    284    32.8    0.237    23    0
0    102    75    23    0    0    0.572    21    0
9    57    80    37    0    32.8    0.096    41    0
2    106    64    35    119    30.5    1.4    34    0
5    147    78    0    0    33.7    0.218    65    0
2    90    70    17    0    27.3    0.085    22    0
1    136    74    50    204    37.4    0.399    24    0
4    114    65    0    0    21.9    0.432    37    0
9    156    86    28    155    34.3    1.189    42    1
1    153    82    42    485    40.6    0.687    23    0
8    188    78    0    0    47.9    0.137    43    1
7    152    88    44    0    50    0.337    36    1
2    99    52    15    94    24.6    0.637    21    0
1    109    56    21    135    25.2    0.833    23    0
2    88    74    19    53    29    0.229    22    0
17    163    72    41    114    40.9    0.817    47    1
4    151    90    38    0    29.7    0.294    36    0
7    102    74    40    105    37.2    0.204    45    0
0    114    80    34    285    44.2    0.167    27    0
2    100    64    23    0    29.7    0.368    21    0
0    131    88    0    0    31.6    0.743    32    1
6    104    74    18    156    29.9    0.722    41    1
3    148    66    25    0    32.5    0.256    22    0
4    120    68    0    0    29.6    0.709    34    0
4    110    66    0    0    31.9    0.471    29    0
3    111    90    12    78    28.4    0.495    29    0
6    102    82    0    0    30.8    0.18    36    1
6    134    70    23    130    35.4    0.542    29    1
2    87    0    23    0    28.9    0.773    25    0
1    79    60    42    48    43.5    0.678    23    0
2    75    64    24    55    29.7    0.37    33    0
8    179    72    42    130    32.7    0.719    36    1
6    85    78    0    0    31.2    0.382    42    0
0    129    110    46    130    67.1    0.319    26    1
5    143    78    0    0    45    0.19    47    0
5    130    82    0    0    39.1    0.956    37    1
6    87    80    0    0    23.2    0.084    32    0
0    119    64    18    92    34.9    0.725    23    0
1    0    74    20    23    27.7    0.299    21    0
5    73    60    0    0    26.8    0.268    27    0
4    141    74    0    0    27.6    0.244    40    0
7    194    68    28    0    35.9    0.745    41    1
8    181    68    36    495    30.1    0.615    60    1
1    128    98    41    58    32    1.321    33    1
8    109    76    39    114    27.9    0.64    31    1
5    139    80    35    160    31.6    0.361    25    1
3    111    62    0    0    22.6    0.142    21    0
9    123    70    44    94    33.1    0.374    40    0
7    159    66    0    0    30.4    0.383    36    1
11    135    0    0    0    52.3    0.578    40    1
8    85    55    20    0    24.4    0.136    42    0
5    158    84    41    210    39.4    0.395    29    1
1    105    58    0    0    24.3    0.187    21    0
3    107    62    13    48    22.9    0.678    23    1
4    109    64    44    99    34.8    0.905    26    1
4    148    60    27    318    30.9    0.15    29    1
0    113    80    16    0    31    0.874    21    0
1    138    82    0    0    40.1    0.236    28    0
0    108    68    20    0    27.3    0.787    32    0
2    99    70    16    44    20.4    0.235    27    0
6    103    72    32    190    37.7    0.324    55    0
5    111    72    28    0    23.9    0.407    27    0
8    196    76    29    280    37.5    0.605    57    1
5    162    104    0    0    37.7    0.151    52    1
1    96    64    27    87    33.2    0.289    21    0
7    184    84    33    0    35.5    0.355    41    1
2    81    60    22    0    27.7    0.29    25    0
0    147    85    54    0    42.8    0.375    24    0
7    179    95    31    0    34.2    0.164    60    0
0    140    65    26    130    42.6    0.431    24    1
9    112    82    32    175    34.2    0.26    36    1
12    151    70    40    271    41.8    0.742    38    1
5    109    62    41    129    35.8    0.514    25    1
6    125    68    30    120    30    0.464    32    0
5    85    74    22    0    29    1.224    32    1
5    112    66    0    0    37.8    0.261    41    1
0    177    60    29    478    34.6    1.072    21    1
2    158    90    0    0    31.6    0.805    66    1
7    119    0    0    0    25.2    0.209    37    0
7    142    60    33    190    28.8    0.687    61    0
1    100    66    15    56    23.6    0.666    26    0
1    87    78    27    32    34.6    0.101    22    0
0    101    76    0    0    35.7    0.198    26    0
3    162    52    38    0    37.2    0.652    24    1
4    197    70    39    744    36.7    2.329    31    0
0    117    80    31    53    45.2    0.089    24    0
4    142    86    0    0    44    0.645    22    1
6    134    80    37    370    46.2    0.238    46    1
1    79    80    25    37    25.4    0.583    22    0
4    122    68    0    0    35    0.394    29    0
3    74    68    28    45    29.7    0.293    23    0
4    171    72    0    0    43.6    0.479    26    1
7    181    84    21    192    35.9    0.586    51    1
0    179    90    27    0    44.1    0.686    23    1
9    164    84    21    0    30.8    0.831    32    1
0    104    76    0    0    18.4    0.582    27    0
1    91    64    24    0    29.2    0.192    21    0
4    91    70    32    88    33.1    0.446    22    0
3    139    54    0    0    25.6    0.402    22    1
6    119    50    22    176    27.1    1.318    33    1
2    146    76    35    194    38.2    0.329    29    0
9    184    85    15    0    30    1.213    49    1
10    122    68    0    0    31.2    0.258    41    0
0    165    90    33    680    52.3    0.427    23    0
9    124    70    33    402    35.4    0.282    34    0
1    111    86    19    0    30.1    0.143    23    0
9    106    52    0    0    31.2    0.38    42    0
2    129    84    0    0    28    0.284    27    0
2    90    80    14    55    24.4    0.249    24    0
0    86    68    32    0    35.8    0.238    25    0
12    92    62    7    258    27.6    0.926    44    1
1    113    64    35    0    33.6    0.543    21    1
3    111    56    39    0    30.1    0.557    30    0
2    114    68    22    0    28.7    0.092    25    0
1    193    50    16    375    25.9    0.655    24    0
11    155    76    28    150    33.3    1.353    51    1
3    191    68    15    130    30.9    0.299    34    0
3    141    0    0    0    30    0.761    27    1
4    95    70    32    0    32.1    0.612    24    0
3    142    80    15    0    32.4    0.2    63    0
4    123    62    0    0    32    0.226    35    1
5    96    74    18    67    33.6    0.997    43    0
0    138    0    0    0    36.3    0.933    25    1
2    128    64    42    0    40    1.101    24    0
0    102    52    0    0    25.1    0.078    21    0
2    146    0    0    0    27.5    0.24    28    1
10    101    86    37    0    45.6    1.136    38    1
2    108    62    32    56    25.2    0.128    21    0
3    122    78    0    0    23    0.254    40    0
1    71    78    50    45    33.2    0.422    21    0
13    106    70    0    0    34.2    0.251    52    0
2    100    70    52    57    40.5    0.677    25    0
7    106    60    24    0    26.5    0.296    29    1
0    104    64    23    116    27.8    0.454    23    0
5    114    74    0    0    24.9    0.744    57    0
2    108    62    10    278    25.3    0.881    22    0
0    146    70    0    0    37.9    0.334    28    1
10    129    76    28    122    35.9    0.28    39    0
7    133    88    15    155    32.4    0.262    37    0
7    161    86    0    0    30.4    0.165    47    1
2    108    80    0    0    27    0.259    52    1
7    136    74    26    135    26    0.647    51    0
5    155    84    44    545    38.7    0.619    34    0
1    119    86    39    220    45.6    0.808    29    1
4    96    56    17    49    20.8    0.34    26    0
5    108    72    43    75    36.1    0.263    33    0
0    78    88    29    40    36.9    0.434    21    0
0    107    62    30    74    36.6    0.757    25    1
2    128    78    37    182    43.3    1.224    31    1
1    128    48    45    194    40.5    0.613    24    1
0    161    50    0    0    21.9    0.254    65    0
6    151    62    31    120    35.5    0.692    28    0
2    146    70    38    360    28    0.337    29    1
0    126    84    29    215    30.7    0.52    24    0
14    100    78    25    184    36.6    0.412    46    1
8    112    72    0    0    23.6    0.84    58    0
0    167    0    0    0    32.3    0.839    30    1
2    144    58    33    135    31.6    0.422    25    1
5    77    82    41    42    35.8    0.156    35    0
5    115    98    0    0    52.9    0.209    28    1
3    150    76    0    0    21    0.207    37    0
2    120    76    37    105    39.7    0.215    29    0
10    161    68    23    132    25.5    0.326    47    1
0    137    68    14    148    24.8    0.143    21    0
0    128    68    19    180    30.5    1.391    25    1
2    124    68    28    205    32.9    0.875    30    1
6    80    66    30    0    26.2    0.313    41    0
0    106    70    37    148    39.4    0.605    22    0
2    155    74    17    96    26.6    0.433    27    1
3    113    50    10    85    29.5    0.626    25    0
7    109    80    31    0    35.9    1.127    43    1
2    112    68    22    94    34.1    0.315    26    0
3    99    80    11    64    19.3    0.284    30    0
3    182    74    0    0    30.5    0.345    29    1
3    115    66    39    140    38.1    0.15    28    0
6    194    78    0    0    23.5    0.129    59    1
4    129    60    12    231    27.5    0.527    31    0
3    112    74    30    0    31.6    0.197    25    1
0    124    70    20    0    27.4    0.254    36    1
13    152    90    33    29    26.8    0.731    43    1
2    112    75    32    0    35.7    0.148    21    0
1    157    72    21    168    25.6    0.123    24    0
1    122    64    32    156    35.1    0.692    30    1
10    179    70    0    0    35.1    0.2    37    0
2    102    86    36    120    45.5    0.127    23    1
6    105    70    32    68    30.8    0.122    37    0
8    118    72    19    0    23.1    1.476    46    0
2    87    58    16    52    32.7    0.166    25    0
1    180    0    0    0    43.3    0.282    41    1
12    106    80    0    0    23.6    0.137    44    0
1    95    60    18    58    23.9    0.26    22    0
0    165    76    43    255    47.9    0.259    26    0
0    117    0    0    0    33.8    0.932    44    0
5    115    76    0    0    31.2    0.343    44    1
9    152    78    34    171    34.2    0.893    33    1
7    178    84    0    0    39.9    0.331    41    1
1    130    70    13    105    25.9    0.472    22    0
1    95    74    21    73    25.9    0.673    36    0
1    0    68    35    0    32    0.389    22    0
5    122    86    0    0    34.7    0.29    33    0
8    95    72    0    0    36.8    0.485    57    0
8    126    88    36    108    38.5    0.349    49    0
1    139    46    19    83    28.7    0.654    22    0
3    116    0    0    0    23.5    0.187    23    0
3    99    62    19    74    21.8    0.279    26    0
5    0    80    32    0    41    0.346    37    1
4    92    80    0    0    42.2    0.237    29    0
4    137    84    0    0    31.2    0.252    30    0
3    61    82    28    0    34.4    0.243    46    0
1    90    62    12    43    27.2    0.58    24    0
3    90    78    0    0    42.7    0.559    21    0
9    165    88    0    0    30.4    0.302    49    1
1    125    50    40    167    33.3    0.962    28    1
13    129    0    30    0    39.9    0.569    44    1
12    88    74    40    54    35.3    0.378    48    0
1    196    76    36    249    36.5    0.875    29    1
5    189    64    33    325    31.2    0.583    29    1
5    158    70    0    0    29.8    0.207    63    0
5    103    108    37    0    39.2    0.305    65    0
4    146    78    0    0    38.5    0.52    67    1
4    147    74    25    293    34.9    0.385    30    0
5    99    54    28    83    34    0.499    30    0
6    124    72    0    0    27.6    0.368    29    1
0    101    64    17    0    21    0.252    21    0
3    81    86    16    66    27.5    0.306    22    0
1    133    102    28    140    32.8    0.234    45    1
3    173    82    48    465    38.4    2.137    25    1
0    118    64    23    89    0    1.731    21    0
0    84    64    22    66    35.8    0.545    21    0
2    105    58    40    94    34.9    0.225    25    0
2    122    52    43    158    36.2    0.816    28    0
12    140    82    43    325    39.2    0.528    58    1
0    98    82    15    84    25.2    0.299    22    0
1    87    60    37    75    37.2    0.509    22    0
4    156    75    0    0    48.3    0.238    32    1
0    93    100    39    72    43.4    1.021    35    0
1    107    72    30    82    30.8    0.821    24    0
0    105    68    22    0    20    0.236    22    0
1    109    60    8    182    25.4    0.947    21    0
1    90    62    18    59    25.1    1.268    25    0
1    125    70    24    110    24.3    0.221    25    0
1    119    54    13    50    22.3    0.205    24    0
5    116    74    29    0    32.3    0.66    35    1
8    105    100    36    0    43.3    0.239    45    1
5    144    82    26    285    32    0.452    58    1
3    100    68    23    81    31.6    0.949    28    0
1    100    66    29    196    32    0.444    42    0
5    166    76    0    0    45.7    0.34    27    1
1    131    64    14    415    23.7    0.389    21    0
4    116    72    12    87    22.1    0.463    37    0
4    158    78    0    0    32.9    0.803    31    1
2    127    58    24    275    27.7    1.6    25    0
3    96    56    34    115    24.7    0.944    39    0
0    131    66    40    0    34.3    0.196    22    1
3    82    70    0    0    21.1    0.389    25    0
3    193    70    31    0    34.9    0.241    25    1
4    95    64    0    0    32    0.161    31    1
6    137    61    0    0    24.2    0.151    55    0
5    136    84    41    88    35    0.286    35    1
9    72    78    25    0    31.6    0.28    38    0
5    168    64    0    0    32.9    0.135    41    1
2    123    48    32    165    42.1    0.52    26    0
4    115    72    0    0    28.9    0.376    46    1
0    101    62    0    0    21.9    0.336    25    0
8    197    74    0    0    25.9    1.191    39    1
1    172    68    49    579    42.4    0.702    28    1
6    102    90    39    0    35.7    0.674    28    0
1    112    72    30    176    34.4    0.528    25    0
1    143    84    23    310    42.4    1.076    22    0
1    143    74    22    61    26.2    0.256    21    0
0    138    60    35    167    34.6    0.534    21    1
3    173    84    33    474    35.7    0.258    22    1
1    97    68    21    0    27.2    1.095    22    0
4    144    82    32    0    38.5    0.554    37    1
1    83    68    0    0    18.2    0.624    27    0
3    129    64    29    115    26.4    0.219    28    1
1    119    88    41    170    45.3    0.507    26    0
2    94    68    18    76    26    0.561    21    0
0    102    64    46    78    40.6    0.496    21    0
2    115    64    22    0    30.8    0.421    21    0
8    151    78    32    210    42.9    0.516    36    1
4    184    78    39    277    37    0.264    31    1
0    94    0    0    0    0    0.256    25    0
1    181    64    30    180    34.1    0.328    38    1
0    135    94    46    145    40.6    0.284    26    0
1    95    82    25    180    35    0.233    43    1
2    99    0    0    0    22.2    0.108    23    0
3    89    74    16    85    30.4    0.551    38    0
1    80    74    11    60    30    0.527    22    0
2    139    75    0    0    25.6    0.167    29    0
1    90    68    8    0    24.5    1.138    36    0
0    141    0    0    0    42.4    0.205    29    1
12    140    85    33    0    37.4    0.244    41    0
5    147    75    0    0    29.9    0.434    28    0
1    97    70    15    0    18.2    0.147    21    0
6    107    88    0    0    36.8    0.727    31    0
0    189    104    25    0    34.3    0.435    41    1
2    83    66    23    50    32.2    0.497    22    0
4    117    64    27    120    33.2    0.23    24    0
8    108    70    0    0    30.5    0.955    33    1
4    117    62    12    0    29.7    0.38    30    1
0    180    78    63    14    59.4    2.42    25    1
1    100    72    12    70    25.3    0.658    28    0
0    95    80    45    92    36.5    0.33    26    0
0    104    64    37    64    33.6    0.51    22    1
0    120    74    18    63    30.5    0.285    26    0
1    82    64    13    95    21.2    0.415    23    0
2    134    70    0    0    28.9    0.542    23    1
0    91    68    32    210    39.9    0.381    25    0
2    119    0    0    0    19.6    0.832    72    0
2    100    54    28    105    37.8    0.498    24    0
14    175    62    30    0    33.6    0.212    38    1
1    135    54    0    0    26.7    0.687    62    0
5    86    68    28    71    30.2    0.364    24    0
10    148    84    48    237    37.6    1.001    51    1
9    134    74    33    60    25.9    0.46    81    0
9    120    72    22    56    20.8    0.733    48    0
1    71    62    0    0    21.8    0.416    26    0
8    74    70    40    49    35.3    0.705    39    0
5    88    78    30    0    27.6    0.258    37    0
10    115    98    0    0    24    1.022    34    0
0    124    56    13    105    21.8    0.452    21    0
0    74    52    10    36    27.8    0.269    22    0
0    97    64    36    100    36.8    0.6    25    0
8    120    0    0    0    30    0.183    38    1
6    154    78    41    140    46.1    0.571    27    0
1    144    82    40    0    41.3    0.607    28    0
0    137    70    38    0    33.2    0.17    22    0
0    119    66    27    0    38.8    0.259    22    0
7    136    90    0    0    29.9    0.21    50    0
4    114    64    0    0    28.9    0.126    24    0
0    137    84    27    0    27.3    0.231    59    0
2    105    80    45    191    33.7    0.711    29    1
7    114    76    17    110    23.8    0.466    31    0
8    126    74    38    75    25.9    0.162    39    0
4    132    86    31    0    28    0.419    63    0
3    158    70    30    328    35.5    0.344    35    1
0    123    88    37    0    35.2    0.197    29    0
4    85    58    22    49    27.8    0.306    28    0
0    84    82    31    125    38.2    0.233    23    0
0    145    0    0    0    44.2    0.63    31    1
0    135    68    42    250    42.3    0.365    24    1
1    139    62    41    480    40.7    0.536    21    0
0    173    78    32    265    46.5    1.159    58    0
4    99    72    17    0    25.6    0.294    28    0
8    194    80    0    0    26.1    0.551    67    0
2    83    65    28    66    36.8    0.629    24    0
2    89    90    30    0    33.5    0.292    42    0
4    99    68    38    0    32.8    0.145    33    0
4    125    70    18    122    28.9    1.144    45    1
3    80    0    0    0    0    0.174    22    0
6    166    74    0    0    26.6    0.304    66    0
5    110    68    0    0    26    0.292    30    0
2    81    72    15    76    30.1    0.547    25    0
7    195    70    33    145    25.1    0.163    55    1
6    154    74    32    193    29.3    0.839    39    0
2    117    90    19    71    25.2    0.313    21    0
3    84    72    32    0    37.2    0.267    28    0
6    0    68    41    0    39    0.727    41    1
7    94    64    25    79    33.3    0.738    41    0
3    96    78    39    0    37.3    0.238    40    0
10    75    82    0    0    33.3    0.263    38    0
0    180    90    26    90    36.5    0.314    35    1
1    130    60    23    170    28.6    0.692    21    0
2    84    50    23    76    30.4    0.968    21    0
8    120    78    0    0    25    0.409    64    0
12    84    72    31    0    29.7    0.297    46    1
0    139    62    17    210    22.1    0.207    21    0
9    91    68    0    0    24.2    0.2    58    0
2    91    62    0    0    27.3    0.525    22    0
3    99    54    19    86    25.6    0.154    24    0
3    163    70    18    105    31.6    0.268    28    1
9    145    88    34    165    30.3    0.771    53    1
7    125    86    0    0    37.6    0.304    51    0
13    76    60    0    0    32.8    0.18    41    0
6    129    90    7    326    19.6    0.582    60    0
2    68    70    32    66    25    0.187    25    0
3    124    80    33    130    33.2    0.305    26    0
6    114    0    0    0    0    0.189    26    0
9    130    70    0    0    34.2    0.652    45    1
3    125    58    0    0    31.6    0.151    24    0
3    87    60    18    0    21.8    0.444    21    0
1    97    64    19    82    18.2    0.299    21    0
3    116    74    15    105    26.3    0.107    24    0
0    117    66    31    188    30.8    0.493    22    0
0    111    65    0    0    24.6    0.66    31    0
2    122    60    18    106    29.8    0.717    22    0
0    107    76    0    0    45.3    0.686    24    0
1    86    66    52    65    41.3    0.917    29    0
6    91    0    0    0    29.8    0.501    31    0
1    77    56    30    56    33.3    1.251    24    0
4    132    0    0    0    32.9    0.302    23    1
0    105    90    0    0    29.6    0.197    46    0
0    57    60    0    0    21.7    0.735    67    0
0    127    80    37    210    36.3    0.804    23    0
3    129    92    49    155    36.4    0.968    32    1
8    100    74    40    215    39.4    0.661    43    1
3    128    72    25    190    32.4    0.549    27    1
10    90    85    32    0    34.9    0.825    56    1
4    84    90    23    56    39.5    0.159    25    0
1    88    78    29    76    32    0.365    29    0
8    186    90    35    225    34.5    0.423    37    1
5    187    76    27    207    43.6    1.034    53    1
4    131    68    21    166    33.1    0.16    28    0
1    164    82    43    67    32.8    0.341    50    0
4    189    110    31    0    28.5    0.68    37    0
1    116    70    28    0    27.4    0.204    21    0
3    84    68    30    106    31.9    0.591    25    0
6    114    88    0    0    27.8    0.247    66    0
1    88    62    24    44    29.9    0.422    23    0
1    84    64    23    115    36.9    0.471    28    0
7    124    70    33    215    25.5    0.161    37    0
1    97    70    40    0    38.1    0.218    30    0
8    110    76    0    0    27.8    0.237    58    0
11    103    68    40    0    46.2    0.126    42    0
11    85    74    0    0    30.1    0.3    35    0
6    125    76    0    0    33.8    0.121    54    1
0    198    66    32    274    41.3    0.502    28    1
1    87    68    34    77    37.6    0.401    24    0
6    99    60    19    54    26.9    0.497    32    0
0    91    80    0    0    32.4    0.601    27    0
2    95    54    14    88    26.1    0.748    22    0
1    99    72    30    18    38.6    0.412    21    0
6    92    62    32    126    32    0.085    46    0
4    154    72    29    126    31.3    0.338    37    0
0    121    66    30    165    34.3    0.203    33    1
3    78    70    0    0    32.5    0.27    39    0
2    130    96    0    0    22.6    0.268    21    0
3    111    58    31    44    29.5    0.43    22    0
2    98    60    17    120    34.7    0.198    22    0
1    143    86    30    330    30.1    0.892    23    0
1    119    44    47    63    35.5    0.28    25    0
6    108    44    20    130    24    0.813    35    0
2    118    80    0    0    42.9    0.693    21    1
10    133    68    0    0    27    0.245    36    0
2    197    70    99    0    34.7    0.575    62    1
0    151    90    46    0    42.1    0.371    21    1
6    109    60    27    0    25    0.206    27    0
12    121    78    17    0    26.5    0.259    62    0
8    100    76    0    0    38.7    0.19    42    0
8    124    76    24    600    28.7    0.687    52    1
1    93    56    11    0    22.5    0.417    22    0
8    143    66    0    0    34.9    0.129    41    1
6    103    66    0    0    24.3    0.249    29    0
3    176    86    27    156    33.3    1.154    52    1
0    73    0    0    0    21.1    0.342    25    0
11    111    84    40    0    46.8    0.925    45    1
2    112    78    50    140    39.4    0.175    24    0
3    132    80    0    0    34.4    0.402    44    1
2    82    52    22    115    28.5    1.699    25    0
6    123    72    45    230    33.6    0.733    34    0
0    188    82    14    185    32    0.682    22    1
0    67    76    0    0    45.3    0.194    46    0
1    89    24    19    25    27.8    0.559    21    0
1    173    74    0    0    36.8    0.088    38    1
1    109    38    18    120    23.1    0.407    26    0
1    108    88    19    0    27.1    0.4    24    0
6    96    0    0    0    23.7    0.19    28    0
1    124    74    36    0    27.8    0.1    30    0
7    150    78    29    126    35.2    0.692    54    1
4    183    0    0    0    28.4    0.212    36    1
1    124    60    32    0    35.8    0.514    21    0
1    181    78    42    293    40    1.258    22    1
1    92    62    25    41    19.5    0.482    25    0
0    152    82    39    272    41.5    0.27    27    0
1    111    62    13    182    24    0.138    23    0
3    106    54    21    158    30.9    0.292    24    0
3    174    58    22    194    32.9    0.593    36    1
7    168    88    42    321    38.2    0.787    40    1
6    105    80    28    0    32.5    0.878    26    0
11    138    74    26    144    36.1    0.557    50    1
3    106    72    0    0    25.8    0.207    27    0
6    117    96    0    0    28.7    0.157    30    0
2    68    62    13    15    20.1    0.257    23    0
9    112    82    24    0    28.2    1.282    50    1
0    119    0    0    0    32.4    0.141    24    1
2    112    86    42    160    38.4    0.246    28    0
2    92    76    20    0    24.2    1.698    28    0
6    183    94    0    0    40.8    1.461    45    0
0    94    70    27    115    43.5    0.347    21    0
2    108    64    0    0    30.8    0.158    21    0
4    90    88    47    54    37.7    0.362    29    0
0    125    68    0    0    24.7    0.206    21    0
0    132    78    0    0    32.4    0.393    21    0
5    128    80    0    0    34.6    0.144    45    0
4    94    65    22    0    24.7    0.148    21    0
7    114    64    0    0    27.4    0.732    34    1
0    102    78    40    90    34.5    0.238    24    0
2    111    60    0    0    26.2    0.343    23    0
1    128    82    17    183    27.5    0.115    22    0
10    92    62    0    0    25.9    0.167    31    0
13    104    72    0    0    31.2    0.465    38    1
5    104    74    0    0    28.8    0.153    48    0
2    94    76    18    66    31.6    0.649    23    0
7    97    76    32    91    40.9    0.871    32    1
1    100    74    12    46    19.5    0.149    28    0
0    102    86    17    105    29.3    0.695    27    0
4    128    70    0    0    34.3    0.303    24    0
6    147    80    0    0    29.5    0.178    50    1
4    90    0    0    0    28    0.61    31    0
3    103    72    30    152    27.6    0.73    27    0
2    157    74    35    440    39.4    0.134    30    0
1    167    74    17    144    23.4    0.447    33    1
0    179    50    36    159    37.8    0.455    22    1
11    136    84    35    130    28.3    0.26    42    1
0    107    60    25    0    26.4    0.133    23    0
1    91    54    25    100    25.2    0.234    23    0
1    117    60    23    106    33.8    0.466    27    0
5    123    74    40    77    34.1    0.269    28    0
2    120    54    0    0    26.8    0.455    27    0
1    106    70    28    135    34.2    0.142    22    0
2    155    52    27    540    38.7    0.24    25    1
2    101    58    35    90    21.8    0.155    22    0
1    120    80    48    200    38.9    1.162    41    0
11    127    106    0    0    39    0.19    51    0
3    80    82    31    70    34.2    1.292    27    1
10    162    84    0    0    27.7    0.182    54    0
1    199    76    43    0    42.9    1.394    22    1
8    167    106    46    231    37.6    0.165    43    1
9    145    80    46    130    37.9    0.637    40    1
6    115    60    39    0    33.7    0.245    40    1
1    112    80    45    132    34.8    0.217    24    0
4    145    82    18    0    32.5    0.235    70    1
10    111    70    27    0    27.5    0.141    40    1
6    98    58    33    190    34    0.43    43    0
9    154    78    30    100    30.9    0.164    45    0
6    165    68    26    168    33.6    0.631    49    0
1    99    58    10    0    25.4    0.551    21    0
10    68    106    23    49    35.5    0.285    47    0
3    123    100    35    240    57.3    0.88    22    0
8    91    82    0    0    35.6    0.587    68    0
6    195    70    0    0    30.9    0.328    31    1
9    156    86    0    0    24.8    0.23    53    1
0    93    60    0    0    35.3    0.263    25    0
3    121    52    0    0    36    0.127    25    1
2    101    58    17    265    24.2    0.614    23    0
2    56    56    28    45    24.2    0.332    22    0
0    162    76    36    0    49.6    0.364    26    1
0    95    64    39    105    44.6    0.366    22    0
4    125    80    0    0    32.3    0.536    27    1
5    136    82    0    0    0    0.64    69    0
2    129    74    26    205    33.2    0.591    25    0
3    130    64    0    0    23.1    0.314    22    0
1    107    50    19    0    28.3    0.181    29    0
1    140    74    26    180    24.1    0.828    23    0
1    144    82    46    180    46.1    0.335    46    1
8    107    80    0    0    24.6    0.856    34    0
13    158    114    0    0    42.3    0.257    44    1
2    121    70    32    95    39.1    0.886    23    0
7    129    68    49    125    38.5    0.439    43    1
2    90    60    0    0    23.5    0.191    25    0
7    142    90    24    480    30.4    0.128    43    1
3    169    74    19    125    29.9    0.268    31    1
0    99    0    0    0    25    0.253    22    0
4    127    88    11    155    34.5    0.598    28    0
4    118    70    0    0    44.5    0.904    26    0
2    122    76    27    200    35.9    0.483    26    0
6    125    78    31    0    27.6    0.565    49    1
1    168    88    29    0    35    0.905    52    1
2    129    0    0    0    38.5    0.304    41    0
4    110    76    20    100    28.4    0.118    27    0
6    80    80    36    0    39.8    0.177    28    0
10    115    0    0    0    0    0.261    30    1
2    127    46    21    335    34.4    0.176    22    0
9    164    78    0    0    32.8    0.148    45    1
2    93    64    32    160    38    0.674    23    1
3    158    64    13    387    31.2    0.295    24    0
5    126    78    27    22    29.6    0.439    40    0
10    129    62    36    0    41.2    0.441    38    1
0    134    58    20    291    26.4    0.352    21    0
3    102    74    0    0    29.5    0.121    32    0
7    187    50    33    392    33.9    0.826    34    1
3    173    78    39    185    33.8    0.97    31    1
10    94    72    18    0    23.1    0.595    56    0
1    108    60    46    178    35.5    0.415    24    0
5    97    76    27    0    35.6    0.378    52    1
4    83    86    19    0    29.3    0.317    34    0
1    114    66    36    200    38.1    0.289    21    0
1    149    68    29    127    29.3    0.349    42    1
5    117    86    30    105    39.1    0.251    42    0
1    111    94    0    0    32.8    0.265    45    0
4    112    78    40    0    39.4    0.236    38    0
1    116    78    29    180    36.1    0.496    25    0
0    141    84    26    0    32.4    0.433    22    0
2    175    88    0    0    22.9    0.326    22    0
2    92    52    0    0    30.1    0.141    22    0
3    130    78    23    79    28.4    0.323    34    1
8    120    86    0    0    28.4    0.259    22    1
2    174    88    37    120    44.5    0.646    24    1
2    106    56    27    165    29    0.426    22    0
2    105    75    0    0    23.3    0.56    53    0
4    95    60    32    0    35.4    0.284    28    0
0    126    86    27    120    27.4    0.515    21    0
8    65    72    23    0    32    0.6    42    0
2    99    60    17    160    36.6    0.453    21    0
1    102    74    0    0    39.5    0.293    42    1
11    120    80    37    150    42.3    0.785    48    1
3    102    44    20    94    30.8    0.4    26    0
1    109    58    18    116    28.5    0.219    22    0
9    140    94    0    0    32.7    0.734    45    1
13    153    88    37    140    40.6    1.174    39    0
12    100    84    33    105    30    0.488    46    0
1    147    94    41    0    49.3    0.358    27    1
1    81    74    41    57    46.3    1.096    32    0
3    187    70    22    200    36.4    0.408    36    1
6    162    62    0    0    24.3    0.178    50    1
4    136    70    0    0    31.2    1.182    22    1
1    121    78    39    74    39    0.261    28    0
3    108    62    24    0    26    0.223    25    0
0    181    88    44    510    43.3    0.222    26    1
8    154    78    32    0    32.4    0.443    45    1
1    128    88    39    110    36.5    1.057    37    1
7    137    90    41    0    32    0.391    39    0
0    123    72    0    0    36.3    0.258    52    1
1    106    76    0    0    37.5    0.197    26    0
6    190    92    0    0    35.5    0.278    66    1
2    88    58    26    16    28.4    0.766    22    0
9    170    74    31    0    44    0.403    43    1
9    89    62    0    0    22.5    0.142    33    0
10    101    76    48    180    32.9    0.171    63    0
2    122    70    27    0    36.8    0.34    27    0
5    121    72    23    112    26.2    0.245    30    0
1    126    60    0    0    30.1    0.349    47    1
1    93    70    31    0    30.4    0.315    23    0

 

 

 返回目录

posted @ 2018-01-27 19:14  黎明程序员  阅读(1275)  评论(0编辑  收藏  举报