![zonal statistics arcgis zonal statistics arcgis](https://i.stack.imgur.com/ZhQuT.png)
Ignore missing values in calculation (optional) This parameter is only supported if the Choose statistic to calculate parameter is set to Percentile. A value of 50 will produce essentially the same result as the median statistic. The result of specifying the 0th percentile is essentially equivalent to that of the minimum statistic, and the 100th percentile is equivalent to maximum. The default is 90, indicating the 90th percentile. The input can be one of the following: Average, Majority, Maximum, Median, Minimum, Minority, Percentile, Range, Standard deviation, Sum, or Variety. Specifies the statistic type to be calculated. However, when it is floating-point type, the options for calculating majority, minority, and variety will not be available. It can be either integer or floating point. The raster that contains the values on which to calculate a statistic. The areas do not have to be contiguous.įield that contains the values that define each zone.īe an integer or a string field of the zone dataset. For features, the zones can be overlapping. For rasters, the zones are defined by all locations in the input that have the same cell value. The input can be an integer raster or feature data. The input that defines the boundaries of the zones, or areas, that will be summarized. The parameters for this tool are listed in the following table:Ĭhoose area layer to summarize a raster layer within defined boundaries If unchecked, all features in both the input layer and the layer to be summarized will be analyzed, even if they are outside the current map extent.
![zonal statistics arcgis zonal statistics arcgis](https://i.stack.imgur.com/EEwrF.png)
If Use current map extent is checked, only those features in the input layer and the layer to be summarized that are visible within the current map extent will be analyzed. For such cells, the zone value is determined by the point with the lowest ObjectID field (for example, OID or FID). If the zone is a point feature, it is possible to have more than one point contained within any particular cell of the value input raster. In this case, determine an appropriate raster resolution that will represent the detail of your raster or feature zone input, and use this resolution as the cell size of the raster analysis settings of the environment.
![zonal statistics arcgis zonal statistics arcgis](https://www.esri.com/arcgis-blog/wp-content/uploads/2019/06/pic1.png)
If the zone does not overlap with the cell center of the value raster, the zone will become NoData. Either of these cases will trigger an internal resampling before the zonal operation is performed. If the cell size is the same but the cells are not aligned, the value raster will be used as the snap raster internally. When the cell size of the zone and the value raster is different, the output cell size will be the Maximum Of Inputs value, and the value raster will be used as the snap raster internally. When the zone and value inputs are both rasters of the same cell size and the cells are aligned, they will be used directly in the tool and will not be resampled internally during tool execution. If the zone is a feature, it will be converted to a raster internally using the cell size and cell alignment from the value raster.
![zonal statistics arcgis zonal statistics arcgis](https://www.researchgate.net/profile/Alex-Onojeghuo/publication/322233248/figure/fig3/AS:581672992034816@1515693056585/Schematics-of-customized-model-developed-using-ArcGIS-for-zonal-statistics-analysis.png)
This functionality is currently only supported in Map Viewer Classic (formerly known as Map Viewer). To run this tool, the portal must be configured for raster analysis.