如下所示:
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import matplotlib.pyplot as plt import numpy as np def readfile(filename): dataList = [] dataNum = 0 with open (filename, 'r' ) as f: for line in f.readlines(): linestr = line.strip( '\n' ) if len (linestr) < 8 and len (linestr) > 1 : dataList.append( float (linestr)) dataNum + = 1 return dataList, dataNum y, range = readfile( "./session.log" ) # print y print "range=%d" % ( range ) x = np.linspace( 0 , 1 , range ) # plt.plot(x, y, 'r-o') plt.plot(x, y) plt.show() |
数据格式:
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0.8960 0.9456 0.9069 0.9128 0.9306 1.0186 1.0327 0.9835 0.9438 0.9807 0.9949 1.0737 1.0842 1.0445 1.0609 1.0664 0.9748 1.0427 1.0983 1.0814 1.1083 1.1051 |
图形:
以上这篇python实现从文件中读取数据并绘制成 x y 轴图形的方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/zwl1584671413/article/details/79204085