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问题[gnuplot](unix)

Martin Hope
grrr
Asked: 2024-04-22 22:51:54 +0800 CST
  • 5

GNUplotfont 是一个简单的实用程序，它将为 GNU 绘图实用程序 graph、plot、pic2plot 和 tek2plot 以及它们所基于的 GNU libplot 图形库可用的任何字体生成字符映射表。

https://www.gnu.org/software/plotutils/manual/en/html_node/plotfont-Examples.html#plotfont-Examples

例子：

plotfont -T hpgl HersheySans

将生成 HPGL 代码中的 HersheySans 字符映射表。

该代码包含所有字符，并且它们似乎并不彼此分离或独立。如何使用plotfont 只获取特定字符HPGL 代码？还有其他工具可以让我做到这一点吗？

gnuplot
Martin Hope
Beppe
Asked: 2024-01-30 22:04:02 +0800 CST
  • 7

我正在我的 Linux Mint (cinnamon) PC 上使用 gnuplot 和 Rust 来完成一个项目。然而，一旦我尝试显示图片，我就会得到：

called `Result::unwrap()` on an `Err` value: Couldn't spawn gnuplot. Make sure it is installed and available in PATH.
Cause: No such file or directory (os error 2)

这看起来没问题，因为我还没有下载 Gnuplot。然而一旦我跑了

sudo apt install gnuplot

我明白了

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package gnuplot-x11 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

我不知道我现在应该做什么。感谢任何帮助，谢谢

编辑：我已经跑了

apt update

和适当的保单回报

Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://packages.microsoft.com/repos/code stable/main armhf Packages
     release o=code stable,a=stable,n=stable,l=code stable,c=main,b=armhf
     origin packages.microsoft.com
 500 http://packages.microsoft.com/repos/code stable/main arm64 Packages
     release o=code stable,a=stable,n=stable,l=code stable,c=main,b=arm64
     origin packages.microsoft.com
 500 http://packages.microsoft.com/repos/code stable/main amd64 Packages
     release o=code stable,a=stable,n=stable,l=code stable,c=main,b=amd64
     origin packages.microsoft.com
 500 http://security.ubuntu.com/ubuntu jammy-security/multiverse i386 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=multiverse,b=i386
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=multiverse,b=amd64
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/universe i386 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=universe,b=i386
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=universe,b=amd64
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/restricted i386 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=restricted,b=i386
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=restricted,b=amd64
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=main,b=i386
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
     release v=22.04,o=Ubuntu,a=jammy-security,n=jammy,l=Ubuntu,c=main,b=amd64
     origin security.ubuntu.com
 500 https://mirror.init7.net/linuxmint vera/backport i386 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=backport,b=i386
     origin mirror.init7.net
 500 https://mirror.init7.net/linuxmint vera/backport amd64 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=backport,b=amd64
     origin mirror.init7.net
 500 https://mirror.init7.net/linuxmint vera/import i386 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=import,b=i386
     origin mirror.init7.net
 500 https://mirror.init7.net/linuxmint vera/import amd64 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=import,b=amd64
     origin mirror.init7.net
 700 https://mirror.init7.net/linuxmint vera/upstream i386 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=upstream,b=i386
     origin mirror.init7.net
 700 https://mirror.init7.net/linuxmint vera/upstream amd64 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=upstream,b=amd64
     origin mirror.init7.net
 500 https://mirror.init7.net/linuxmint vera/main i386 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=main,b=i386
     origin mirror.init7.net
 500 https://mirror.init7.net/linuxmint vera/main amd64 Packages
     release v=21.1,o=linuxmint,a=vera,n=vera,l=linuxmint,c=main,b=amd64
     origin mirror.init7.net
 500 https://dl.google.com/linux/chrome/deb stable/main amd64 Packages
     release v=1.0,o=Google LLC,a=stable,n=stable,l=Google,c=main,b=amd64
     origin dl.google.com
 500 https://cli.github.com/packages stable/main amd64 Packages
     release o=gh,n=stable,l=gh,c=main,b=amd64
     origin cli.github.com
 500 http://security.ubuntu.com/ubuntu focal-security/main i386 Packages
     release v=20.04,o=Ubuntu,a=focal-security,n=focal,l=Ubuntu,c=main,b=i386
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
     release v=20.04,o=Ubuntu,a=focal-security,n=focal,l=Ubuntu,c=main,b=amd64
     origin security.ubuntu.com
 500 https://apt.kitware.com/ubuntu focal/main i386 Packages
     release o=ubuntu focal,a=focal,n=focal,l=ubuntu focal,c=main,b=i386
     origin apt.kitware.com
 500 https://apt.kitware.com/ubuntu focal/main amd64 Packages
     release o=ubuntu focal,a=focal,n=focal,l=ubuntu focal,c=main,b=amd64
     origin apt.kitware.com
 500 https://cloud.r-project.org/bin/linux/ubuntu bionic-cran40/ Packages
     release v=18.04,o=CRAN,a=bionic-cran40,n=bionic-cran40,l=CRAN,c=
     origin cloud.r-project.org
Pinned packages:
     snapd -> 2.58+22.04.1 with priority -10
     snapd -> 2.58+20.04.1 with priority -10
gnuplot
Martin Hope
coderodde
Asked: 2023-05-21 02:07:11 +0800 CST
  • 5

我有这个数据文件（TotalDurationBarPlot.dat）：

Indexed list 934
Tree list 3692
Array list 12274
Linked list 48188

我希望实现的是一个带有 4 个条形图的直方图：一个用于Indexed list，一个用于Tree list，一个用于Array list，一个用于Linked list。我的要求是：

  1. 每个酒吧都有它独特的颜色，
  2. 在每个栏的顶部，有一个数字表示栏的高度。（例如，在Tree list上方，有3692。）
  3. 如果在浅灰色背景上有一个图例，右上角有一个细黑色图例边框，那就太好了。

我目前的尝试

截至目前，我的数据文件如下所示：

# ILL TL AL LL
934 3692 12274 48188

...我的 gnuplot 脚本如下所示：

set title font "Monospaced,13" 'Total duration'
set grid
set key right top
set style data histograms
set style histogram cluster gap 2
set style fill solid border 2
set xtics format ""
set grid ytics
set ylabel "Milliseconds"
set yrange [0:70000]
# set boxwidth 0.5 relative
# set label "Array list\n134908 ms" at graph 0.145,0.9

ArrayListColor   = "#491d75";
IndexedListColor = "#b32929";
LinkedListColor  = "#d49435";
TreeListColor    = "#12520b";

plot 'TotalDurationBarPlot.dat' using 1 title "Indexed list" linecolor rgb IndexedListColor, '' using 2 title "Tree list" linecolor rgb TreeListColor, '' using 3 title "Array list" linecolor rgb ArrayListColor, '' using 4 title "Linked list" linecolor rgb LinkedListColor, '' u 0:1:1 with labels offset -6.0,-100.0 title ""

set terminal png size 650,350 enhanced font "Monospaced,13"
set output 'TotalDuration.png'
replot
exit

它产生：

列表比较

编辑 1

@meuhgnuplot的答案中提供的代码生成以下图：

烂吧

gnuplot
Martin Hope
Mr. 206
Asked: 2019-06-04 04:27:50 +0800 CST
  • 0

我的文件夹结构看起来像这样

$ tree
.
├── Original_folder
│   └── cat.txt
├── folderCD
│   └── cat.txt
├── folderGK
│   └── cat.txt
├── folderFE
    └── cat.txt

每个 cat.txt 文件在开始列标题之前有 5 行。示例 cat.txt 文件是这样的

Version LRv1.10.0
Build date 2017-12-06
MOL-calc
PRESSURE
!                       
      Time[s]     InletT[K]   InletP[Pa]   O2_GasOut     C_GasOut
       100         0.000885   1000000       0.0007       0.2111
and so on....

我想绘制第一列以及列标题带有关键字“_GasOut”的列。（此关键字的标题数量未知，对于每一列我想有一个单独的图表）。此外，对于folderCD、folderGK、folderFE……等所有图形，Original_folder 的图形结果应绘制在同一个图形中。

相应的图表应保存在相应的文件夹中，其标题与列标题相同。在每个图表中应该有两个图例一个是“original_folder”，另一个是“folderCD/folderGK/......”

我将 Original_folder 的所有输出绘图命令都放在一个 txt 文件中，并将所有其他文件夹的绘图命令放在另一个 txt 文件中。在那之后我没有找到继续前进的方法。我怎样才能为所有其他情况做到这一点？以及如何将列标题作为标题？

最近更新

for dir in folder* ; do
 echo "Preparing Post_processing files for ${dir}"
 mkdir "$dir"/Post_processing                        
 gawk -F  $'\t' '                                    
    /_GasOut/{                                      
       for(f=1;f<=NF;f++){                          
          hdr=$f                                    
         colhdr[f]=hdr                              
         if(index(hdr,"_GasOut"))wanted[f]=1
       }
    }
    ENDFILE{                                         

          print "reset\nset terminal pngcairo size 1024,768\nset encoding utf8\nset termoption dash\nset termopt enhanced"  
          print "set key top right"                                                                                         
          print "set xlabel '"'Time[s]'"';"    
       for(f in wanted){                           
          if(length(cmds)) cmds = cmds ",\n"
          hdr = colhdr[f]                        
          gsub(/^[[:space:]]+|[[:space:]]+$/,"",hdr)  
          printf("set ylabel '"'%s'"';\n",hdr)
          printf("set output '"'"$dir/Post_processing"/%s.png'"'\n",hdr)
          cmds = cmds "plot ""\"" FILENAME "\" using 1:" f " with lines" ","
          #print "plot " FILENAME using 1:" f " with lines" ",""
          cmds=cmds"'"'Original_folder/cat.txt'"' using 1:" f " with lines"        

        }      
       delete wanted  
    }
    END{              
       print cmds     
    }
    ' "$dir"/cat.txt>"$dir"/plot.gpl

   gnuplot "$dir"/plot.gpl
done

电流输出是这样的

reset
set terminal pngcairo size 1024,768
set encoding utf8
set termoption dash
set termopt enhanced
set xlabel 'Time[s]';
set ylabel 'H2_GasOut';
set output 'folderCD/Post_processing/H2_GasOut.png'
set ylabel 'O2_GasOut';
set output 'folderGK/Post_processing/O2_GasOut.png'
set ylabel 'H2O_GasOut';
set output 'folderFE/Post_processing/H2O_GasOut.png'
plot "folderCD/cat.txt" using 1:28 with lines,'Original_folder/cat.txt' using 1:28 with lines,
plot "folderGK/cat.txt" using 1:29 with lines,'Original_folder/cat.txt' using 1:29 with lines,
plot "folderGK/cat.txt" using 1:30 with lines,'Original_folder/cat.txt' using 1:30 with lines

期望的输出

reset
set terminal pngcairo size 1024,768
set encoding utf8
set termoption dash
set termopt enhanced
set xlabel 'Time[s]';
set ylabel 'H2_GasOut';
set output 'folderCD/Post_processing/H2_GasOut.png'
plot "folderCD/cat.txt" using 1:28 with lines,'Original_RedKinMec/cat.txt' using 1:28 with lines,
set ylabel 'O2_GasOut';
set output 'folderGK/Post_processing/O2_GasOut.png'
plot "folderGK/cat.txt" using 1:29 with lines,'Original_folder/cat.txt' using 1:29 with lines,
set ylabel 'H2O_GasOut';
set output 'folderFE/Post_processing/H2O_GasOut.png'
plot "folderGK/cat.txt" using 1:30 with lines,'Original_folder/cat.txt' using 1:30 with lines

有这样的输出也很好

set terminal pngcairo size 1024,768
   set encoding utf8
   set termopt dash
   set termopt enhanced
   set key top right
   set xlabel "Time[s]"
   set ylabel "O2_GasOut"
   set output "Post_processing/O2_GasOut.png"
   plot "folder1/cat.txt" using 1:22 with lines,\
   plot "folder2/cat.txt" using 1:22 with lines,\
   plot "folder3/cat.txt" using 1:22 with lines,\
   plot "folder4/cat.txt" using 1:22 with lines
   set ylabel "H2O_GasOut"
   set output "Post_processing/H2O_GasOut.png"
   plot "folder1/cat.txt" using 1:23 with lines,\
   plot "folder2/cat.txt" using 1:23 with lines,\
   plot "folder3/cat.txt" using 1:23 with lines,
   plot "folder4/cat.txt" using 1:23 with lines
   set ylabel "H2_GasOut"
   set output "Post_processing/H2_GasOut.png"
   plot "folder1/cat.txt" using 1:24 with lines,\
   plot "folder2/cat.txt" using 1:24 with lines,\
   plot "folder3/cat.txt" using 1:24 with lines,\
   plot "folder4/cat.txt" using 1:24 with lines




N.B: folder numbers are not fixed.
I added one of the cat.txt file for reference. https://1drv.ms/t/s!Aoomvi55MLAQh1wMmpnPGnliFmgg
gnuplot
Martin Hope
Yiling Liu
Asked: 2019-05-13 18:56:37 +0800 CST
  • 0

代码：

#!/usr/bin/env bash
# download death data
wget -O Deaths.txt http://www.randomservices.org/random/data/Deaths.txt
wget -O Pumps.txt http://www.randomservices.org/random/data/Pumps.txt
# Delete the first line
sed 1d Deaths.txt > tempfile1
sed 1d Pumps.txt > tempfile2
# mv tempfile1 Deaths.txt
# mv tempfile2 Pumps.txt
gnuplot -persist -e "set terminal canvas;set xlabel 'x' font 'sans,15';
set ylabel 'y' font ',15';
set title 'Relationship between Deaths and Pumps' font 'sans, 20';
show title;
set label "Most of the deaths is near the pump located in 12.6,11.7" at 16,16;
show label;
set output 'death_pump_relation.html';
plot 'Pumps.txt' with points pt 7 ,'Deaths.txt' with dots;"

有一个错误：line 0: unexpected or unrecognized token

我无法得到任何输出

但其实我的脚本里没有line0

那有什么问题？

版本：gnuplot V5.2

系统：MacOS

gnuplot
Martin Hope
user1993416
Asked: 2019-02-11 13:06:42 +0800 CST
  • 0

我必须用 Gnuplot 绘制 3 个 CSV 文件中包含的数据。

通常，我使用以下代码从 2 个 CSV 文件中进行绘图：

$datablock << EOD
`cat ../Q1a/sim_Q1.csv <(tail -n+8 ../Q1b/sim_Q1.csv | tr '",' '  ' | sort -nk19 )| tail -n+8  | tr '",' '  ' | sort -nk19 > ../Q1a/Q6_ressult.txt`
EOD
set print "|bash -x"
print $datablock
set print

CSV 位于三个不同的目录中。数据从第 8 行开始，我必须取出"和,字符，并按第 19 列对数据进行排序。

我不知道如何扩展此代码以粘贴 3 个不同的 CSV 执行相同的sort、、tail -n+8和tr命令，并获得.txt带有结果的最终文件。

shell gnuplot
Martin Hope
Johan Sjolen
Asked: 2019-02-04 06:13:30 +0800 CST
  • 0

我有以下 GNUplot 文件：

set title "Performance of Quicksort over random data sets"
set yrange [0:80000]
set style data histogram
set style histogram cluster
set style fill solid border -1
set boxwidth 0.9
plot for [COL=2:6:1] 'timings.dat' using COL

和以下数据文件：

# Data-size being x-axis, each data size having a histogram-bar for seq/2-t/4-t/8-t/16-t (color-coded)
# Y-axis is time (the information in the columns below Sequential for example being the timings of sequential program for 2^15...2^28)

Data-size Sequential 2-threaded 4-threaded 8-threaded 16-threaded
2^15      6          4       5     7          10   
2^16      11         9       9     11         19   
2^17      24        17       18        24         32   
2^18      49        35       32        43         59   
2^19      102       71       70        89         115  
2^20      208       145      135       161        201  
2^21      431       295      281       333        416  
2^22      895       598      550       667        870  
2^23      1887      1219     1173      1228       1639 
2^24      3852      2979     2478      2621       3457 
2^25      7962      4980     4693      5064       6834 
2^26      16329     10151    9332      10062      13217
2^27      33775     21039    19072     20008      25196
2^28      69995     43393    38091     40598      52492

这就是生成的 gnuplot 图像的样子：

gnuplot

我的两个问题是：

  1. x 轴应根据数据大小列标记 (2^15,...,2^28)

  2. 条形应根据它们在数据表中的名称命名（顺序、2 线程等）

我已经通读了手册的部分内容，这使我达到了这个阶段，但不幸的是，我没有足够的经验来理解我想要的东西是如何完成的。

gnuplot
Martin Hope
Zaboj Campula
Asked: 2018-02-21 12:46:21 +0800 CST
  • 3

我有一个产生这样的日志的应用程序：

14:48:16, 41.0
14:50:01, 40.0
14:54:01, 41.0
14:54:04, 40.0
14:55:10, 41.0
14:55:22, 40.0
15:00:13, 41.0
...

它是当前时间和测量的温度。当温度变化时，应用程序会在日志文件中写入一行。

我想通过 gnuplot 绘制温度图，我试过了：

set xdata time
set timefmt "%H:%M:%S"
set yrange [30:50]
set xrange ["14:40":"16:50"]
plot 'temp.csv' using 1:2 with lines

它显示了这样的图表：

图形

但我希望线条是水平的，并在温度变化时形成一个台阶。结果应该看起来像蓝线：

想要的图表

我怎样才能强制 gnuplot 这样做？我可以通过日志预处理来做到这一点，但我只想在可能的情况下通过 gnuplot 做到这一点。

gnuplot