本文实例讲述了Python使用pylab库实现绘制直方图功能。分享给大家供大家参考,具体如下:
Python直方图
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#!/usr/bin/python
# -*- coding: utf-8 -*-
import pylab as pl
dataFile = "dataList.txt"
tempList = []
with open (dataFile, "r" ) as data:
for everLine in data:
arrEverLine = [ float (index) for index in everLine.split()]
tempList.append(arrEverLine[ 0 ])
pl.hist(tempList, 100 )
pl.xlabel( "直方图标题" , fontproperties = 'SimHei' )
pl.show()
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dataList.txt内容
14 2 1 0.5 0.5 0 1 0.5 1.5 18.5
19 2 2 0.5 1 0 1 0.5 0 21
19.5 2 1.5 2 0 0.5 2 0 1 20
17.5 1.5 1 1.5 2 0 1.5 0 0 18.5
19.5 2 2 2 0.5 0 1 0 0.5 19.5
16.5 2 0.5 1 0 0.5 0.5 0 0.5 19.5
15.5 2 1 1.5 0 0 1 0.5 1 17.5
13.5 1.5 1 1 2 0 2 0.5 2 20
14.5 2 1.5 2 0 0 1 0 2 18.5
16 2 2 1.5 1 0.5 1 0 2 19.5
。。。
输出结果
希望本文所述对大家Python程序设计有所帮助。
原文链接:https://blog.csdn.net/yiduanchengxu/article/details/50264021