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COUNT_MATRIX_ELEMS

version 1.0.0.0 (2.56 KB) by Paulo Coelho
Obtains unique row elements from MxN matrix A and counts the number of occurrences.

164 Downloads

Updated 19 Oct 2012

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COUNT_MATRIX_ELEMS - Obtains unique row elements from MxN matrix A and counts the number of occurrences. UN contains all matrix A distinct elements. C will have the same size as UN. UN(k) has C(k) occurrences in matrix A.

Example:

A = [1 2 3; 4 5 6; 1 2 3; 4 5 7; 1 2 1; 1 2 3; 4 5 6]
[UN, C] = count_matrix_elems(A)

A =

1 2 3
4 5 6
1 2 3
4 5 7
1 2 1
1 2 3
4 5 6

UN =
1 2 1
1 2 3
4 5 6
4 5 7

C =
1
3
2
1

See also UNIQUE, FIND, NUMEL

Cite As

Paulo Coelho (2021). COUNT_MATRIX_ELEMS (https://www.mathworks.com/matlabcentral/fileexchange/38680-count_matrix_elems), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2012a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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