使用GNUplot按行绘制.csv数据 [英] Plotting .csv data by row with GNUplot

问题描述

我有一个仅包含数字值的.csv文件.我想将每一行绘制为单独的图，并使用y轴上的值与值的位置作为x值.即:

I have a .csv-file that contains only numeric Values. I want to plot each row as a seperate Plot and use the Values on the y-Axis versus the position of the Value as x-Value. I.e.:

10,2,5,69,7,8,6

有什么方法可以在不外部重新排列数据的情况下进行操作?

Any way to do this without externally rearranging the data?

推荐答案

这是一组非常晦涩的命令，可以满足您的要求.我会毫不犹豫地推荐它，因为它对于混淆的意义不明显，并且对于空字段或缺少数据而言是脆弱的.需要gnuplot版本5.

Here is a very obscure set of commands that does what you ask. I hesitate to recommend it because it is non-obvious to the point of being obfuscated and it is fragile with respect to empty fields or missing data. Requires gnuplot version 5.

# Specify that this is a *.csv file
set datafile separator ","
# This command will plot value as a function of column for row n
plot 'rowdata' matrix using 1:0 every :::n::n with lp
# This command will do the same for each row in the file
plot for [col=1:*] 'rowdata' matrix using 1:0 every :::col::col with lp

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