Unique Columns Certain Rows
Unique Columns Certain Rows is a (very) small function set, which given a double matrix A forms a second matrix B containing the columns of A which have the same value (below a tolerance) in a set of rows specified by a logical vector. Additionally, it outputs a vector which has the "category" to which each column of A belongs.
PS: Current version doesn't guarantee anything about the elements in the "non determinant" rows of A. B will contain those corresponding to the last tested column.
Graphical example:
A= [ 1 1 2 3
2 1 1 1
4 4 4 3
5 6 6 6 ]
whichRows= [ true
false
true
false ]
tol=1
[B,indexVector]=uniqueColumnsCertainRows(A,whichRows,tol) =>
B= [ 1 2 3
1 1 1
4 4 3
6 6 6 ]
indexVector=[1,1,2,3]
Cite As
Claudio Delpino (2024). Unique Columns Certain Rows (https://www.mathworks.com/matlabcentral/fileexchange/55217-unique-columns-certain-rows), MATLAB Central File Exchange. Retrieved .
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Version | Published | Release Notes | |
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1.0.0.0 |