gnuplot上的x轴值 [英] x-axis value on gnuplot

问题描述

  1 0.530000 0.510000 
 2 0.420000 0.310000 
 4 0.400000 0.160000 
 8 0.390000 0.070000 
 16 0.390000 0.040000 
 32 0.310000 0.020000 $ b $ 64 64 0.170000 0.020000 $ b $ 128 0.070000 0.000000 
 256 0.030000 0.000000 
 512 0.020000 0.000000 
 1024 0.000000 0.000000 
  

我的gnuplot文件就像给出的一样。
$ b $

 ＃！/ usr / bin / gnuplot 
重置
设置终端png 
 
 set ylabeltime in ms
 
设置xlabelk
 
设置标题更新第k个元素
设置键反向左侧
设置网格
 
设置样式数据线点
 
设置输出'cache_access.png'
使用1：2标题的图标time_mem_access.datcache access 1 ，\ 
使用1：3标题cache access 2
  

图表，我有厕所ks like below。

我的问题是我想让x轴在第一列显示确切的值

 即1,2,4,8,16,32,64等
  

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解决方案

而不是调用：

 使用1：2标题cache access 1，\ 
使用1：3绘制time_mem_access.dat titlecache access 2
  

您可以尝试：

 使用1：2：xtic（1）标题cache access 1绘制time_mem_access.dat，\ 
使用1：3：xtic 1）titlecache access 2
  

这会给你下面的图：
< img src =https://i.stack.imgur.com/kMt3e.pngalt =在这里输入图片描述>

然而，您可能需要记录x值：

  plottime_mem_access.dat 使用（log（$ 1））：2：xtic（1）titlecache access 1，\ 
使用（log（$ 1））：3：xtic（1）titlecache access 2 
  

哪个会给你：

I am playing around with gnuplot.My data set looks like this.

1     0.530000  0.510000
2     0.420000  0.310000
4     0.400000  0.160000
8     0.390000  0.070000
16    0.390000  0.040000
32    0.310000  0.020000
64    0.170000  0.020000
128   0.070000  0.000000
256   0.030000  0.000000
512   0.020000  0.000000
1024  0.000000  0.000000

My gnuplot file is as given blow.

#!/usr/bin/gnuplot
reset
set terminal png

set ylabel "time in ms"

set xlabel "k"

set title "update every kth element"
set key reverse Left outside
set grid

set style data linespoints

set output 'cache_access.png'
plot "time_mem_access.dat" using 1:2 title "cache access 1", \
      ""                   using 1:3 title "cache access 2"

The graph that I got looks like below.

My problem is that I want the x-axis to show the exact values in the first column

i.e 1,2,4,8,16,32,64 etc.

I can't find any documentation online on how to get exactly this done.

解决方案

Instead of calling:

plot "time_mem_access.dat" using 1:2 title "cache access 1", \
      ""                   using 1:3 title "cache access 2"

You can try:

plot "time_mem_access.dat" using 1:2:xtic(1) title "cache access 1", \
      ""                   using 1:3:xtic(1) title "cache access 2"

Which will give you the following plot:

However you might want to take a log of the x values:

plot "time_mem_access.dat" using (log($1)):2:xtic(1) title "cache access 1", \
      ""                   using (log($1)):3:xtic(1) title "cache access 2"

Which would give you:

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