change contrast(brightness) of the scatter plot

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shaz
shaz 2012-12-13
a=1; b=200; scatter(a,b,1000,'r','filled')
how can i modify the contrast(to light red color or dark red color)

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回答（1 个）

Walter Roberson
Walter Roberson 2012-12-13
I'm not sure what you mean by "contrast" in this case? You can set() the color of the underlying axes, or you can use an RGB triple when you set the color.
scatter(a, b, 1000, [0.5 0 0]); %medium red

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