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# File 'lib/nswtopo/gis/arcgis/layer/statistics.rb', line 4
def classify(*fields)
statistics = fields.map.with_index do |name, index|
{ statisticType: "count", onStatisticField: name, outStatisticFieldName: "COUNT_#{index}" }
end
field_counts = get_json "#{@id}/query", **base_query, outStatistics: statistics.to_json, groupByFieldsForStatistics: fields.join(?,)
field_counts["features"].map do |feature|
[feature["attributes"].slice(*fields), feature["attributes"]["COUNT_0"]]
end
end
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