perhaps you should specify that y is in the order of the first occurence of each unique element of x
This would be a better problem if unique and sort functions were not allowed
Solution without using sort(.) or unique(.) .
Solution without using sort(_) or unique(_) .
Note 1) this solution does not use sort() anywhere :) 2) the more elegant "stable" is not available for unique in pre-2012 MATLAB.
Replace NaNs with the number that appears to its left in the row.
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Set some matrix elements to zero
Cody Computer Part 2 - Get the license number of Cody Computer
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Make a logical diamond using GALLERY function
Sort an array of structures
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