Continuous sampling: linear, random, from simplex

Version 1.5.0.0 (2.06 KB) by Simone
Linearly and randomly sampling points in simplex.
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Updated 13 May 2019

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Samples continuous points in an interval. It allows for both linear and
uniform random sampling. It is also possible to draw points only in the
simplex of the interval.
Inputs:
- lo : lower bound (column of length D)
- hi : upper bound (column of length D)
- N : number of points to sample
- useSimplex : put 1 if you want to sample from the simplex of the bound, 0 otherwise
- linearly : put 1 if you want the points to be linearly spaced, 0 otherwise
Outputs:
- points : D-by-NN matrix with random points, where NN >= N

More information about sampling from the simplex:
http://math.stackexchange.com/questions/502583/uniform-sampling-of-points-on-a-simplex

Cite As

Simone (2024). Continuous sampling: linear, random, from simplex (https://www.mathworks.com/matlabcentral/fileexchange/50480-continuous-sampling-linear-random-from-simplex), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes
1.5.0.0

fix case with simplex = 1 and dim = 1
1.4.0.0

Fixed a small error that occurred when sampling linearly in 1D.
Changed title.
1.3.0.0

Tags fixed.
1.2.0.0

Added the possibility to do linear sampling also in the simplex.
1.1.0.0

Changed title.
1.0.0.0