Creating a simple 2D contour plot from data files(xlsx or txt).

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I want to create a simple contour line with a file with an extension of xlsx or txt. However, it is difficult to use the code because the data file has five lines. How should the x, y, and z values be given and how should the code be made?

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Answers (1)

Hiro on 4 Feb 2020
Here the function for 'contour':
Give me detail if possible and then we can work on your problem.

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