python学习相关知识点

1.ndarray中,添加行或列:https://blog.csdn.net/lishuandao/article/details/52444288

2.numpy中ndarray数组拼接方法介绍:https://blog.csdn.net/zyl1042635242/article/details/43162031

3.ndarray怎么求每一列元素的最大最小值,然后把每列的元素做归一化:

4.三行代码实现txt转csv

import numpy as np  
import pandas as pd  
  
txt = np.loadtxt('file.txt')  
txtDF = pd.DataFrame(txt)  
txtDF.to_csv('file.csv',index=False)  

np.loadtxt()的参数:https://blog.csdn.net/m0_38034312/article/details/79096963

https://www.jianshu.com/p/ef37f739b531

posted @ 2018-05-11 09:43  0沧海一粟0  阅读(135)  评论(0编辑  收藏  举报