Usage: gdal raster zonal-stats [OPTIONS] <INPUT> <OUTPUT>
Calculate raster zonal statistics
Positional arguments:


  -i, --input <INPUT>                                  Input raster datasets [required]


  -o, --output <OUTPUT>                                Output vector dataset [required]
Common Options:


  -h, --help                                           Display help message and exit


  --json-usage                                         Display usage as JSON document and exit


  --config <KEY>=<VALUE>                               Configuration option [may be repeated]


  -q, --quiet                                          Quiet mode (no progress bar)
Options:


  -f, --of, --format, --output-format <OUTPUT-FORMAT>  Output format ("GDALG" allowed)


  --co, --creation-option <KEY>=<VALUE>                Creation option [may be repeated]


  --lco, --layer-creation-option <KEY>=<VALUE>         Layer creation option [may be repeated]


  --overwrite                                          Whether overwriting existing output is allowed


  --update                                             Whether to open existing dataset in update mode


  --overwrite-layer                                    Whether overwriting existing output is allowed


  --append                                             Whether appending to existing layer is allowed


                                                       Mutually exclusive with --upsert


  --output-layer <OUTPUT-LAYER>                        Output layer name


  --skip-errors                                        Skip errors when writing features


  -b, --band <BAND>                                    Input band(s) (1-based index) [may be repeated]


  --zones <ZONES>                                      Dataset containing zone definitions [required]


  --zones-band <ZONES-BAND>                            Band from which zones should be read


                                                       Mutually exclusive with --zones-layer


  --zones-layer <ZONES-LAYER>                          Layer from which zones should be read


                                                       Mutually exclusive with --zones-band


  --weights <WEIGHTS>                                  Weighting raster dataset


  --weights-band <WEIGHTS-BAND>                        Band from which weights should be read (default: 1)


  --pixels <PIXELS>                                    Method to determine which pixels are included in stat calculation.. PIXELS=default|fractional|all-touched


  --stat <STAT>                                        Statistic(s) to compute for each zone. STAT=center_x|center_y|count|coverage|frac|max|max_center_x|max_center_y|mean|median|min|minority|min_center_x|min_center_y|mode|stdev|sum|unique|values|variance|variety|weighted_mean|weighted_stdev|weighted_sum|weighted_variance|weights [may be repeated] [required]


  --include-field <INCLUDE-FIELD>                      Fields from polygon zones to include in output [may be repeated]


  --strategy <STRATEGY>                                For polygon zones, whether to iterate over input features or raster chunks. STRATEGY=feature|raster (default: feature)


  --chunk-size <CHUNK-SIZE>                            Maximum size of raster chunks read into memory (default: 5%)
Advanced Options:


  --if, --input-format <INPUT-FORMAT>                  Input formats [may be repeated]


  --oo, --open-option <KEY>=<VALUE>                    Open options [may be repeated]


  --output-oo, --output-open-option <KEY>=<VALUE>      Output open options [may be repeated]


  --upsert                                             Upsert features (implies 'append')


                                                       Mutually exclusive with --append

[image] Mean elevation calculated for each polygon from an elevation raster..UNINDENT