Label | Explanation | Data Type |

Input rasters or constant values | A list of input rasters for which a statistic will be calculated for each cell in the Analysis window. A number can be used as an input; however, the cell size and extent must first be set in the environment. If the Process as multiband parameter is checked, all multiband inputs must have an equal number of bands. | Raster Layer; Constant |

Overlay statistic (Optional) | Specifies the statistic type to be calculated. - Mean —The mean (average) of the inputs will be calculated.
- Majority —The majority (value that occurs most often) of the inputs will be calculated.
- Maximum —The maximum (largest value) of the inputs will be calculated.
- Median —The median of the inputs will be calculated.
- Minimum —The minimum (smallest value) of the inputs will be calculated.
- Minority —The minority (value that occurs least often) of the inputs will be calculated.
- Range —The range (difference between largest and smallest value) of the inputs will be calculated.
- Standard deviation —The standard deviation of the inputs will be calculated.
- Sum —The sum (total of all values) of the inputs will be calculated.
- Variety —The variety (number of unique values) of the inputs will be calculated.
| String |

Ignore NoData in calculations (Optional) | Specifies whether NoData values will be ignored by the statistic calculation. - Checked—At the processing cell location, if any of the input rasters has NoData, that NoData value will be ignored. The statistics will be computed by only considering the cells with valid data. This is the default.
- Unchecked—If the processing cell location for any of the input rasters is NoData, the output for that cell will be NoData.
| Boolean |

Process as multiband (Optional) | Specifies how the input multiband raster bands will be processed. - Unchecked—Each band from a multiband raster input will be processed separately as a single band raster. This is the default.
- Checked—Each multiband raster input will be processed as a multiband raster. The operation will be performed for each band from one input using the corresponding band number from the other inputs.
| Boolean |

### Return Value

Label | Explanation | Data Type |

Output raster | The output raster. For each cell, the value is determined by applying the specified statistic type to the input rasters at that location. | Raster |