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How can I ask the user to enter a value during the execution of a GnuPlot script?

I would like to use stdin to initialize some plotting parameters.

I have try to call : a=system("read") and pause mouse keypressed

Without sucess.

Any help welcomed. Thanks

user2257517
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1 Answers1

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I assume you are on Linux. Your shell command must write something to stdout which gnuplot can read from stdin. Something like this should work:

print "Pleaser enter a number: " 
a = system("read a; echo $a")

plot a*sin(x)
pause mouse close

Would it be an alternative to write a script in bash, python, ... which reads user input and calls gnuplot afterwards? (The links are my first google results, I have mainly read the title.)

maij
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