Gnuplot: Is it possible to store variables in an array using a for-loop?

Question

Let's assume we got the following variables:

var1 = 2
var2 = 8
var3 = 24

I want to do the following, just as a loop:

array A[3]
A[1] = var1
A[2] = var2
A[3] = var3

what i tried but did not work:

array A[3]
do for [i=1:3] {
A[i] = var[i]
}

I wanted to add the index from i to the variable so that it'll be A[1] = var1 etc. It says the variable var would be undefined. Round brackets like var(i) don't work either.

Is there even a possibility to do so? Any hints are appreciated.

theozh · Accepted Answer · 2020-03-25 10:21:56Z

1

Try this. Check help evaluate. Maybe there are better ways.

Code:

### assign variables to array
reset session

var1 = 2
var2 = 8
var3 = 24

array A[3]

do for [i=1:3] {
    eval(sprintf("A[%d] = var%d",i,i))
}

print A
### end of code

Result:

[2,8,24]

answered Mar 25, 2020 at 10:21

theozh

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