anymissing — Return true when an input contains at least one missing value.
anymissing(A) is the scalar predicate companion to ismissing; it is true when any entry of A is missing.
Syntax
TF = anymissing(A)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
A | Any | Yes | — | Input value. |
Returns
| Name | Type | Description |
|---|---|---|
TF | LogicalArray | Logical missing-value mask. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:missing:InvalidArgument | Arguments do not match a supported missing-value syntax. | missing-value builtin: invalid argument |
RunMat:missing:UnsupportedType | The input type has no missing-value representation in RunMat. | missing-value builtin: unsupported input type |
RunMat:missing:InternalError | Internal shape or table materialization fails. | missing-value builtin: internal error |
How anymissing works
- Numeric
NaN, missing strings, missing cells, structs with missing fields, and tables with any missing variable entry all return true. - All eight built-in integer classes are supported; because integers have no standard missing value, integer scalars and arrays return false.
Example
Test for any missing value
tf = anymissing([1 NaN 3])Expected output:
tf = trueUsing anymissing with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how anymissing changes the result.
Run a small anymissing example, explain the result, then change one input and compare the output.
Related Missing functions
fillmissing · ismissing · missing · movmad · nanmean · nanmedian · nanmin · nanstd · nansum · nanvar · rmmissing · standardizeMissing
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how anymissing is executed, line by line, in Rust.
- View the source for anymissing 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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