wblrnd — Generate Weibull-distributed random samples.
wblrnd(a,b) generates Weibull random samples with scale parameter a and shape parameter b. Size-vector and dimension-list forms are supported.
Syntax
r = wblrnd(a, b)
r = wblrnd(a, b, sz)
r = wblrnd(a, b, sz1, sz2, ...)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
a | Any | Yes | — | First distribution parameter. |
b | Any | Yes | — | Second distribution parameter. |
sz | Any | Variadic | — | Output size arguments. |
Returns
| Name | Type | Description |
|---|---|---|
r | NumericArray | Random sample array. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:wblrnd:InvalidArgument | Input parameters or size arguments are missing, malformed, or incompatible. | distribution random: invalid argument |
RunMat:wblrnd:Internal | Internal tensor conversion, allocation, or RNG state access fails. | distribution random: internal error |
How wblrnd works
aandbsupport scalar expansion and matching array shapes.- The documented parameter and size classes are single and double. Typed-integer parameter and size forms are independently gated RunMat extensions; integer parameters must be exactly representable at the sampling boundary, while integer sizes are parsed structurally.
- Without explicit size arguments, the output shape is the scalar-expanded parameter shape.
- With explicit size arguments, nonscalar parameters must match the requested shape.
- Output is single when either documented parameter is single and double otherwise.
aandbmust be positive.
Example
Generate Weibull samples
r = wblrnd(4,3,[2 3])Using wblrnd with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how wblrnd changes the result.
Run a small wblrnd example, explain the result, then change one input and compare the output.
FAQ
How are samples generated?⌄
RunMat uses inverse-transform sampling with a * (-log(U))^(1/b) and the shared RunMat RNG.
Related Stats functions
Random
binornd · bootstrp · datasample · dividerand · exprnd · gamrnd · lhsdesign · mvnrnd · normrnd · random · randsample · rng · trnd · unidrnd · unifrnd
Ml
bayesopt · classify · confusionmat · crossvalind · cvpartition · fitclinear · fitctree · fitlm · kmeans · knnsearch · lasso · lassoglm · linkage · lscov · mnrfit · optimizableVariable · pdist · pdist2 · perfcurve · predict · regress · ridge · squareform · test · training · tsne
Summary
binocdf · boxplot · cdf · cdfplot · chi2cdf · corr · corrcoef · corrcov · cov · cov2corr · dummyvar · ecdf · filloutliers · fitdist · geomean · grpstats · harmmean · icdf · isoutlier · kstest · kurtosis · lsline · mad · mode · nanmax · normalize · normcdf · norminv · normpdf · onehotdecode · onehotencode · pdf · prctile · quantile · refline · rmse · skewness · tabulate · tcdf · tiedrank · tinv · tpdf · ttest2 · wblinv
Hist
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how wblrnd is executed, line by line, in Rust.
- View the source for wblrnd in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
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