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()
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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
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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