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tono/docs/nodes/Statistics.md
2026-04-16 00:06:15 -07:00

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# Statistics
Compute basic surface statistics: min, max, mean, RMS roughness, median, and skewness. Equivalent to gwy_data_field_get_min/max/avg/rms.
## Inputs
| Name | Type | Required | Description |
|------|------|----------|-------------|
| field | DATA_FIELD | Yes | Input field to analyze |
| mask | IMAGE | No | Optional binary mask — only pixels inside the mask contribute to the statistics |
## Outputs
| Name | Type | Description |
|------|------|-------------|
| stats | RECORD_TABLE | Table of statistical quantities with values and units |
## Controls
None.
## Notes
- When a mask is provided, it must match the field's pixel resolution. Only pixels where the mask is non-zero are included in the statistics.