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# Topic: series

| Tool | Description |
|--------|-------------|
| [r.series.accumulate](r.series.accumulate.md) | Makes each output cell value a accumulationfunction of the values assigned to the corresponding cells in the input raster map layers. |
| [r.series.interp](r.series.interp.md) | Interpolates raster maps located (temporal or spatial) in between input raster maps at specific sampling positions. |

*See also the corresponding keyword for additional references:*

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