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1.多元线性回归pho0.05),说明满足方差不变假设2.线性回归data1<-c( 2.6,1.1,1,1.8,1.9,3.9,8.1,8.1,8.1,8.3,7.2,6.6,8.3,6.2,8.7,6.6,5.3,5.5,8.5,3.5 ,3.8,0.8,0.6,2.3,2.5,4,8.7,... 阅读全文
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1.matlabclcclearNVAR=2;NIND=40;%种群大小?MAXGEN=100;%最大遗传代数?LIND=10;%个体长度(变量的二进制位数)?GGAP=0.9;%代沟trace=zeros(2,MAXGEN);FieldD=[LIND LIND0e4 0.6e4 %lb:每个变量的... 阅读全文
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1.R(世博会x pri.arimaSeries: priARIMA(0,1,0) with driftCoefficients: drift 0.1943s.e. 0.0758sigma^2 estimated as 0.04017: log likelihood=1.3... 阅读全文
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1.matlabclear all;clc;x0=[ 976.04,995.53,1018.5,1001.35,1150.06,1309.7,1355.03,1424.91]' ;N=12; n=length( x0 ) ; x1=cumsum( x0 ) ; B=[ -0.5* (x1( 1 : ... 阅读全文
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1.熵权系数法matlabA=[40 84 4800000 213853928 4017615739 78400000100 37 3485750 111573116 4090207204 438154449.370 54 22... 阅读全文
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1.BP神经网络(葡萄酒clear all; clc ;data=[ -1.17 -0.73 2.2 -0.6 -0.34 -0.4 -1.59 -0.15 0.09 -0.42-0.16 -0.08 -0.75 -0.4... 阅读全文
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1.典型相关分析 Rtest ca$cor[1] 0.9213551 0.5886030$xcoef [,1] [,2] [,3] [,4]主成分1 0.163498177 0.079948250 -0.039715... 阅读全文
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1.(DVD式子代码MODEL:SETS:CN/C1..C1000/:B;DN/D1..D100/:DVNUM;LINKS(CN,DN):SATI,X;ENDSETSDATA:SATI,DVNUM=@OLE('D:\LINGO\DATA\b2005table2.xlsx');@OLE('D:\LIN... 阅读全文
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1.百分号95\%2.下标b_{ij}3.表格(excel2latex)符号说明\begin{table}[H]\centering\begin{tabular}{m{100pt}<{\centering} m{100pt}<{\centering} m{200pt}<{\centering}}\t... 阅读全文
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1.dfdtfunction X =dtft(x,n,w)%计算离散时间付里叶变换%[X]=dtft(x,n,w)%X=在w频率点上的DTFT数组%x=n点有限长度序列%n=样本位置向量%w=频率点位置向量X=x*(exp(-j).^(n'*w)); 2.idfdtfunction[x]=idtft... 阅读全文