如下所示:
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:
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。