# filters.stats

The stats filter calculates the minimum, maximum and average (mean) values of dimensions. On request it will also provide an enumeration of values of a dimension.

The output of the stats filter is metadata that can be stored by writers or used through the PDAL API. Output from the stats filter can also be quickly obtained in JSON format by using the command `pdal info --stats`.

## Example

    {
      "pipeline":[
        "input.las",
        {
          "type":"filters.stats",
          "dimensions":"X,Y,Z,Classification",
          "enumerate":"Classification"
        },
        {
          "type":"writers.las",
          "filename":"output.las"
        }
      ]
    }

### Options

dimensions
  A comma-separated list of dimensions whose statistics should be processed. If not provided, statistics for all dimensions are calculated.
enumerate
  A comma-separated list of dimensions whose values should be enumerated. Note that this list does not add to the list of dimensions that may be provided in the dimensions option.
count
  Identical to the –enumerate option, but provides a count of the number of points in each enumerated category.