我有一个包含以下数据的文件,第一个字段是 UNIXTimestamp,
1351734672.095 25
1351734674.449 52
1351734676.638 612
1351734680.669 44
1351734681.121 16
1351734684.182 15
1351734684.386 17
1351734686.823 16
1351734689.807 22
1351734689.807 28
我如何从这个文件加载 x,y 到 python?
#!/usr/bin/env python
from numpy import *
import Gnuplot
g = Gnuplot.Gnuplot()
g.title('My Systems Plot')
g.xlabel('Date')
g.ylabel('Value')
g('set term png')
g('set out "output.png"')
proc = open("response","r")
databuff = Gnuplot.Data(proc.read(), title="test")
g.plot(databuff)
目前这不起作用...有什么想法吗??
更新:
#!/usr/bin/env python
from numpy import *
import Gnuplot
g = Gnuplot.Gnuplot()
g.title('My Systems Plot')
g.xlabel('Date')
g.ylabel('Response')
g('set auto x')
g('set term png')
g('set out "output.png"')
g('set timefmt "%s"')
g('set xdata time')
g('set xtic rotate by 45 scale 1 font ",2"')
g('set key noenhanced')
g('set format x "%H:%M:%S"')
g('set grid')
databuff = Gnuplot.File("repo", using='1:2',title="test")
g.plot(databuff)
x 轴上的时间值与图形重叠..有什么想法吗??
最佳答案
使用 Gnuplot.File
而不是 Gnuplot.Data
,可以获得以下图:
#!/usr/bin/env python
#from numpy import *
import Gnuplot
g = Gnuplot.Gnuplot()
g.title('My Systems Plot')
g.xlabel('Date')
g.ylabel('Value')
g('set term png')
g('set out "output.png"')
#proc = open("response","r")
#databuff = Gnuplot.Data(proc.read(), title="test")
databuff = Gnuplot.File("response", using='1:2',with_='line', title="test")
g.plot(databuff)
更新:
对于重叠,您可以将45
更改为-45
:
#g('set xtic rotate by 45 scale 1 font ",2"')
g('set xtic rotate by -45 scale 1 font ",2"')
关于python gnuplot 从文件中读取,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13204764/