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

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young been kim
young been kim 2020-1-29
回答： Hiro Yoshino 2020-2-4
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?
  2 个评论
Walter Roberson
Walter Roberson 2020-1-29
The data has many lines but 5 columns.
As outside observers we have no way of knowing which column has what meaning.
It looks to me as if entries of -99 indicate missing data and so those rows probably need to be removed.
After that you would probably use scatteredinterpolant()

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Hiro Yoshino
Hiro Yoshino 2020-2-4
Here the function for 'contour':
https://jp.mathworks.com/help/matlab/ref/contour.html?s_tid=doc_ta
Give me detail if possible and then we can work on your problem.

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