Values from a column selection index vector

Version 1.2.0.0 (1.72 KB) by Eydrian
Returns the actual values chosen of a data from a column index vector

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Updated Fri, 14 Jun 2013 14:04:40 +0000

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selection2values Returns the actual chosen elements of a data from a
vector that indicates the chosen column. Therefor max(selectedElements) <=
max(size(Data)) && min(selectedElements) >= 1

Syntax: chosenValues = selection2values(Data, selectedElements)

Inputs:
Data: is the data where a selction was made on.
selectedElements: is a vector pointing to the column selected

Outputs:
the values at the selected column positions

Example:
DATA = [1, 2, 3, 4; 4, 5, 6, 7];
selectedElements = [1; 3];
values = selection2values(DATA, selectedElements); % returns [1; 6]

or
DATA = randn(500, 4); % data was given
selectedElements = randi(3, 500, 1); % selection was made
values = selection2values(DATA, selectedElements); % the actual values
that are wanted!
Other m-files required:
nothing

Other Classes required:
nothing

see also: sub2ind

Cite As

Eydrian (2023). Values from a column selection index vector (https://www.mathworks.com/matlabcentral/fileexchange/42220-values-from-a-column-selection-index-vector), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2013a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.2.0.0

Updated the return, return before was only indices of the matrix, instead of returning the actual values, fixed!

1.0.0.0