fea.trends — Summarize recent persisted FEA runs.
fea.trends(Name, Value, ...) returns a fea.Trends summary over a bounded recent-run window.
Syntax
trends = fea.trends(Name, Value, ...)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
Name, Value | Any | Variadic | — | Optional positive integer WindowSize. |
Returns
| Name | Type | Description |
|---|---|---|
result | Any | FEA object or operation result. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:fea:LoadFailed | A .fea document cannot be read, parsed, or resolved. | fea: failed to load FEA document |
RunMat:fea:InvalidInput | A builtin receives an unsupported argument pattern or object type. | fea: invalid input |
RunMat:fea:OperationFailed | A validation, planning, run, result-query, comparison, or trend operation fails. | fea: operation failed |
RunMat:fea:Internal | An FEA object or operation result cannot be converted to a RunMat value. | fea: internal error |
How fea.trends works
WindowSizeis the only option and defaults to 16.- Window size must be a positive exact structural scalar. All eight integer classes and ordinary integral doubles are accepted exactly; zero, negative, fractional, nonfinite, out-of-range, nonscalar, and resident values reject before artifact-store access.
- Window size and returned run/count metadata remain exact typed integers. Timing, rate, ratio, and aggregate measurement fields remain binary64.
- The query is host-side, performs no provider execution, and does not require native OCCT.
Example
Summarize the latest 32 runs
trends = fea.trends("WindowSize", uint32(32));Using fea.trends with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how fea.trends changes the result.
Run a small fea.trends example, explain the result, then change one input and compare the output.
FAQ
Is zero an unlimited window?⌄
No. WindowSize must be positive; omit it to use the default of 16.
Related Fea functions
fea.boundaryCondition · fea.compare · fea.domain · fea.field · fea.interface · fea.loadCase · fea.material · fea.materialAssignment · fea.model · fea.plan · fea.plot · fea.results · fea.run · fea.runOptions · fea.step · fea.study · fea.sweep · fea.validate
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how fea.trends is executed, line by line, in Rust.
- View the source for fea.trends in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.
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