wehub-resource-sync
19 lines
437 B
Matlab
Executable File
19 lines
437 B
Matlab
Executable File
function [X, model] = ppcaRnd(m, d, n)
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% Generate data from probabilistic PCA model
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% Input:
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% m: dimension of latent space
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% d: dimension of data
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% n: number of data
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% Output:
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% X: d x n data matrix
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% model: model structure
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% Written by Mo Chen (sth4nth@gmail.com).
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beta = randg;
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Z = randn(m,n);
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W = randn(d,m);
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mu = randn(d,1);
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X = bsxfun(@times,W*Z,mu)+randn(d,n)/sqrt(beta);
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model.W = W;
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model.mu = mu;
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model.beta = beta; |