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check the condition and assign discrete values

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subha
subha 2013-11-4
回答： Image Analyst 2013-11-4
i have converted one dataset into four groups.say my datavalues are in between 0 to 1.
Then i seperated those values as <0.25 ,<0.5 ,<0.75,<1
now i want to assign 0.25 group as value 0, 0.5 group as 1 0.75 group as 2 1 group as 3
can anybody help in this?

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-11-4
编辑：Azzi Abdelmalek 2013-11-4
x=rand(1,100)
[idx,idx]=histc(x,[0.25 0.5 0.75 1])
for k=1:4
groupe{k}=x(idx==k-1)
end
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subha
subha 2013-11-4
I used quartile method.Also i found probability for each quartile.Now i want to replace each quartile state to 0,1 ,2 ,3 respectively.I didnt use any cell array type
can you give me idea in this case
thanks

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更多回答（1 个）

Image Analyst
Image Analyst 2013-11-4
If you have the Image Processing Toolbox, you could use imquantize().

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