Matplotlib library installation on GAMS

GAMS
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1

Dear ALL,
I am currently using GAMS_44.4, Linux version. And my OS is Ubuntu 20.04.6 LTS. I am solving a MINLP problem with DICOPT, and I would like to plot a graph for some time-dependent variables so that I could verify and compare my answer more directly. However, when I try to use the following command:

$onEmbeddedCode Python:

import matplotlib

matplotlib.use(‘WXAgg’)

import matplotlib.pyplot as plt

$offEmbeddedCode

The log file told me:

— Initialize embedded library libembpycclib64.so
— Execute embedded library libembpycclib64.so
File ,<‘string’>, line 3, in <‘module’>
Exception from Python (line 3): <class ‘ModuleNotFoundError’>: No module named ‘matplotlib’
*** Error executing embedded code section:
*** Error 865 in /home/username/Documents/GAMS/Studio/workspace/test.gms

I checked the forum topics, only one relates to this problem but it happens in Windows system. I would like to know what can I do for the same problem but in Linux system?

Thank you!

2

You can check this to learn how to attach your python to GAMS. Then, you can just run install matplotlib in a typical way with pip install matplotlib

3

Thank you so much sir! I will try to follow the guidance on the link you provided to see if I can apply it to my case! Have a nice day.