I am getting a colorbar with uniform color. I want there to be variations so the distribution makes sense.

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Sattik Basu 2017-11-26

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https://ww2.mathworks.cn/matlabcentral/answers/369350-i-am-getting-a-colorbar-with-uniform-color-i-want-there-to-be-variations-so-the-distribution-makes

评论： Sattik Basu 2017-11-26

The P matrix varies from 1 to 2, however the returned figure shows one square with one uniform color. it would be a great help, if i could have a range of colors in that range(1 to 2) to show the distribution.

imshow(P,'InitialMagnification',2000)

colb = colorbar;

set(colb, 'ylim', [1 2])

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Sattik Basu 2017-11-26

right now, it shows completely white. for instance if i use 'jet', it shows completely blue.

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采纳的回答

Walter Roberson 2017-11-26

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https://ww2.mathworks.cn/matlabcentral/answers/369350-i-am-getting-a-colorbar-with-uniform-color-i-want-there-to-be-variations-so-the-distribution-makes#answer_293232

在 MATLAB Online 中打开

imshow(P, [], 'InitialMagnification',2000)

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Walter Roberson 2017-11-26

在 MATLAB Online 中打开

colormap(jet) after the imshow() call.

Or... you could instead

imagesc(P);
colormap(jet);

This will not mess up nearly as many settings as imshow() will.

Sattik Basu 2017-11-26

That imagesc command worked. thank you again.

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