What does the 'i' mean in [y,i] = unique(A)?
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If I got a m x 1 matrix and I perform this little piece of code in Matlab it returns two arrays 'y' and 'i', where 'y' holds the unique numbers en 'i' holds the row numbers of the unique numbers? I don't understand why this is. Can someone explain this to me?
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Star Strider
2016년 4월 28일
편집: Star Strider
2016년 4월 28일
It’s the index into ‘A’, so that ‘y=A(i)’. It returns the index of the first instance of the unique values. If you want all of them (indirectly), you have to ask for the third argument as well.
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Star Strider
2016년 4월 28일
My pleasure!
That isn’t the ‘wrong’ page, and is definitely worth reading (I wish more posters here read it), but not the one that would provide the information you need to understand the unique function.
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