prctile — Compute sample percentiles.
prctile(X,p) computes sample percentiles along the first nonsingleton dimension using linear interpolation.
Syntax
Y = prctile(X, p)
Y = prctile(X, p, dim)
Y = prctile(X, p, dim, nanflag)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
X | Any | Yes | — | Input data array. |
p | NumericArray | Yes | — | Requested quantile probabilities or percentiles. |
dim | Any | No | — | Dimension to operate along. |
options | Any | Variadic | — | Optional nanflag or method arguments. |
Returns
| Name | Type | Description |
|---|---|---|
Q | NumericArray | Quantile or percentile values. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:prctile:InvalidArgument | Inputs, dimensions, probabilities, or options are malformed. | order statistics: invalid argument |
RunMat:prctile:Internal | Internal tensor conversion or allocation fails. | order statistics: internal error |
How prctile works
pmust contain percentages in[0,100].prctile(X,p,dim)operates along a selected dimension.- NaNs are omitted by default in each slice.
"omitnan"omits NaNs in each slice;"includenan"returns NaN for slices containing NaN."Method","linear"and"Method","exact"use in-memory linear interpolation;"approximate"is rejected because tall arrays are not supported here.
Example
Median percentile
m = prctile([1 3 10 20], 50)Using prctile with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how prctile changes the result.
Run a small prctile example, explain the result, then change one input and compare the output.
FAQ
Can p be a vector?⌄
Yes. Vector p replaces the operated dimension with the number of requested percentiles.
Related Stats functions
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 · quantile · refline · rmse · skewness · tabulate · tcdf · tiedrank · tinv · tpdf · ttest2 · wblinv
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
Random
binornd · bootstrp · datasample · dividerand · exprnd · gamrnd · lhsdesign · mvnrnd · normrnd · random · randsample · rng · trnd · unidrnd · unifrnd · wblrnd
Hist
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how prctile is executed, line by line, in Rust.
- View the source for prctile 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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