Gnuplot图是脱节的(数据似乎移位/错误)

时间:2011-12-29 00:13:46

标签: gnuplot

Gnuplot给了我以下图片,第二张图中有一个奇怪的不相交,其原点我无法确定。我已经包含了下面的数据,其中x值单调递增,这应该排除这种不相交的可能性。任何帮助赞赏! enter image description here 从以下脚本生成:

set size 0.8,0.4
set lmargin 1
set terminal png
set output "test.png"
set multiplot
set origin 0.1,0.1
set xtics 5
set xrange[0:25]
set xlabel "Year"
plot "./g1" u ($1+1):2 w lines t "4 years"
set xlabel ""
set origin 0.1,0.5
set xtics format ""
set x2tics 5
plot "./g2" u ($1+1):2 w lines t "5 years"
unset multiplot

g1的数据是:

0.000000    1.000000
1.000000    3.000000
2.000000    9.000000
3.000000    27.000000
4.000000    0.809131
5.000000    2.427394
6.000000    7.282183
7.000000    21.846549
8.000000    0.654694
9.000000    1.964081
10.000000   5.892243
11.000000   8.935199
12.000000   0.529733
13.000000   1.589200
14.000000   3.983240
15.000000   2.509780
16.000000   0.428624
17.000000   1.233139
18.000000   1.951804
19.000000   0.595792
20.000000   0.343980
21.000000   0.809600
22.000000   0.729229
23.000000   0.171423
24.000000   0.258384
25.000000   0.426250

g2的数据是:

0.000000        1.000000
1.000000        3.000000
2.000000        9.000000
3.000000        27.000000
4.000000        81.000000
5.000000        2.427394
6.000000        7.282183
7.000000        21.846549
8.000000        65.539647
9.000000        196.618942
10.000000       5.892243
11.000000       17.676730
12.000000       53.030190
13.000000       159.090569
14.000000       241.250367
15.000000       14.302798
16.000000       42.908394
17.000000       128.725182
18.000000       322.642448
19.000000       203.292210
20.000000       34.718531
21.000000       104.155593
22.000000       299.652772
23.000000       474.288428
24.000000       144.777335
25.000000       84.275565

1 个答案:

答案 0 :(得分:2)

这很奇怪。在我的系统(ubuntu 11.10 64bit)上,我没有看到你遇到的问题:

$ gnuplot --version
gnuplot 4.4 patchlevel 3

$ gnuplot < a.gnuplot  # a.gnuplot is your script, unmodified

它产生了这个:

gnuplot output on my system

如果我是你,我会检查:

  1. gnuplot版本
  2. 输入文件 - 在vim中使用set list查看是否隐藏了任何猖獗的字符