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Randomizing an array of colors

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Hao Wei Low
Hao Wei Low 2015-4-29
编辑： Søren Jensen 2015-4-29
I'm trying to randomize an array of colors that can be used on a pushbutton and i can't seem to get them to randomize or work at all. Below is the code i thought my work.
colors={'b' 'r' 'g' 'y'}
rand=randperm(numel(colors))
randcolors=colors(rand)
set(handles.pushbutton1,'background',randcolors{1})
  1 个评论
Guillaume
Guillaume 2015-4-29
I don't know anything about gui to help you but I wouldn't use rand as a variable name since that shadows matlab's rand function.
Otherwise the randomisation code looks fine, so that's not the issue.

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回答（1 个）

Søren Jensen
Søren Jensen 2015-4-29
编辑：Søren Jensen 2015-4-29
I thought i remembered something about specifying colors by numbers.. here it is: http://se.mathworks.com/help/matlab/ref/colorspec.html
just feed it with three random numbers between 0 and 1 (rand), or random rounded numbers for only 0 and 1.
ex:
randcolor = [round(rand) round(rand) round(rand)]
EDIT: just did a little playing around with the plot function.. here's an example of generating random plot colors every time:
plot(your_plot,'color',[rand rand rand])

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