Python使用pylab库实现绘制直方图功能

#!/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()

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
。。