Mercurial > hg > ishara
diff general/numerical/gausspdf.m @ 4:e44f49929e56
Adding reorganised general toolbox, now in several subdirectories.
| author | samer |
|---|---|
| date | Sat, 12 Jan 2013 19:21:22 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/general/numerical/gausspdf.m Sat Jan 12 19:21:22 2013 +0000 @@ -0,0 +1,9 @@ +function w=gausspdf(x,sigma) +% gausspdf - Gaussian probability density +% +% gausspdf :: [Size->real] -> [Size->nonneg]. +% gausspdf :: [Size->real], nonneg ~'stddev of Guassian' -> [Size->nonneg]. +% returns normal (gaussian) pdf of 1st argument. + +if nargin<2, sigma=1; end; +w=exp(-0.5*(x./sigma).^2)./(sigma*sqrt(2*pi));