Values from a column selection index vector

Versione 1.2.0.0 (1,72 KB) da Eydrian
Returns the actual values chosen of a data from a column index vector
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Aggiornato 14 giu 2013

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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

Cita come

Eydrian (2025). Values from a column selection index vector (https://it.mathworks.com/matlabcentral/fileexchange/42220-values-from-a-column-selection-index-vector), MATLAB Central File Exchange. Recuperato .

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Creato con R2013a
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Versione Pubblicato Note della release
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