如何在gnuplot中将整数转换为字符串? [英] How do I convert an integer to a string in gnuplot?

问题描述

在类似的示例中，我知道如何将$与using一起使用

I know how to use $ with using in examples like

plot datafile using f($1):g($2)

绘制列数据的函数.但我想在循环中使用此功能:

to plot functions of column data. But I want to use this feature in a loop:

plot for [c=1:10] datafile using f($(c)):g($(c+1))

当然，此代码不起作用.我猜想，如果我知道如何将整数c转换为字符串(或单个ASCII字符)，那么它将起作用.我该怎么办?

Of course this code doesn't work. I guess that if I know how to convert the integer c to a string (or a single ASCII character) then it would work. How can I do it?

(如果可以在不将整数转换为字符串的情况下完成相同的任务，那也可以.)

(If the same task can be done without conversion of integer to string, that would be fine too.)

推荐答案

您是否正在寻找类似的东西:

Are you looking for something like:

plot for [c=1:5] datafile using (column(c)):(column(c+1))

这将执行:plot datafile u 1:2, "" u 2:3, "" u 3:4, "" u 4:5, "" u 5:6

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