How can I center the ColorBrewer colors around 0?

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dila suay 2022-2-24

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评论： dila suay 2022-2-25

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Hello, I am using cbrewer for my colormap. However the value 0 is not exactly white (attached jpg image). I have played around with the n, but nothing seems to change.

n=256
colormap(cbrewer2('RdBu',n));

How can I make the 0 value true white?

Thank you

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DGM 2022-2-25

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This doesn't have anything to do with the particular colormap. This has to do with the fact that the colorbar limits are not centered on zero.

Try:

caxis([-8 8])

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dila suay 2022-2-25

Thank you so much !

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