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How to speed up the "unique" function when sorting out unique columns

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Finding non-unique values in an array.

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on 4 Feb 2015
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How to merge multiple graphs/vectors in one!

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on 21 Jan 2015
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operations on large dataset

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on 6 Jan 2015
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Function to aggregate data

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on 4 Dec 2014
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Counting repeated strings in an array

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on 18 Nov 2014
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Cannot support cell arrays containing cell arrays or objects.

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on 30 Oct 2014
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on 30 Oct 2014
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Count unique categorical values in table

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on 25 Oct 2014
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on 25 Oct 2014
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number of elements of each unique values in a matrix

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on 15 Oct 2014
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Efficient application of unique and strcat functions

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on 10 Aug 2014
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Find unique combinations of double and character elements

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on 10 Aug 2014
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Track changes in the rows to get a new variable in Matlab

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on 9 Aug 2014
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Extract identical values from a data set

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on 2 Jul 2014
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Intersection of two sets keeping all intersected values

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How to Find Column Duplicates

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on 25 Jun 2014
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How do you replace duplicate values in an array?

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on 24 Jun 2014
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option faster than unique?

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on 6 Jun 2014
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Table/categorical arrays and the <undefined> category

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on 3 Jun 2014
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Find the median of sequential duplicate entries

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on 24 May 2014
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How to write a function to delete the duplicated arrays?

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on 3 May 2014
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How would I create my own 'unique' function without using the built in unique?

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on 29 Apr 2014
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unique - which occurrence of a repeated element"?

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on 28 Mar 2014
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How do I determine if a value is unique within an iteration?

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on 27 Mar 2014
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Writing to file with loops and loop error

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on 28 Feb 2014
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choose max among elements with same column 1 value, different column 2 value

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on 4 Mar 2014
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How do I group/merge an O-D matrix?

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on 1 Mar 2014
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how can i delete every row with the same number?

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on 24 Jan 2014
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How to find unique rows with unordered elements?

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on 13 Jan 2014
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Finding Indices of Duplicate Values

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on 19 Nov 2013
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Merging cells,adding contents

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on 17 Nov 2013
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word count matrix problem

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on 10 Nov 2013
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on 15 Nov 2013
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Since R2013a, unique() retrieves first occurrence: where in the docs?

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on 10 May 2013
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on 30 Sep 2013

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