tcl and gnuplot interaction -

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Currently, I have to handle the data processing part. Assume that the data is stored in a TCL list variable.
If I want to use Gnuplot to show data, what is the best way to do this?
Based on my study, the data file provided to Gnuplot is required. So I can not pass the list variable directly to the gnuplot command
I think with the string operation, create the gnu command inside TCL and then print all the commands in a file, for example, "command.dat "Give Name
And call gnuplot in tcl like this:
exec gnuplot" command.dat "

Any other method? Or good references


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