I want to plot a 2D matrix with a color contrast.

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Anshuman S
Anshuman S 2018-6-18
评论： Walter Roberson 2018-6-18
I've got a spreadsheet ( 2-D matrix ) which has got temperature readings of various points on a 2-D plane. How can I plot a color variation temp. profile plot for this matrix.
I have uploaded the csv file.

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回答（1 个）

Walter Roberson
Walter Roberson 2018-6-18
Several possibilities:
imagesc(data)
contour(data)
contourf(data)
pcolor(data)
surf(data, 'edgecolor', 'none'); view(2);
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Anshuman S
Anshuman S 2018-6-18
Thanks ! May you tell me about the theory for this !
Walter Roberson
Walter Roberson 2018-6-18
When you have a table, then using {} indexing on it extracts values from the table into ordinary arrays.
You should probably have asked for selected output type as numeric array instead of table for this data, as it is a 2D array of data instead of being columns of data each with a different meaning.

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