https://community.esri.com/t5/kotlin-maps-sdk-questions/how-to-statistic-vector-area-from-a-local/m-p/1653696#M597 <P><SPAN>I am developing an Android application using the ArcGIS Maps SDK for Kotlin (version 200.6).I'm currently using&nbsp;StatisticsQueryParameters to perform statistics on other attribute fields in the FeatureTable, and it works well. Now I need to&nbsp;statistic vector area.</SPAN></P><LI-CODE lang="kotlin"> val statisticDefinition = StatisticDefinition( areaFieldName, metricFieldStatisticType, areaFieldAlias ) statisticDefinitions.add(statisticDefinition) val queryParameters = StatisticsQueryParameters(statisticDefinitions).apply { groupByFieldNames.add(firstLevelGroupByFieldName) secondLevelGroupByFieldName?.let { groupByFieldNames.add(it) } boundary?.let { geometry = it } } featureTable.queryStatistics(queryParameters).onSuccess { statisticsQueryResult -&gt; statisticsQueryResult.forEach { statisticRecord -&gt; val groupMap = statisticRecord.group val statisticsMap = statisticRecord.statistics val tableQueryByLevelRow = TableQueryRow.TableQueryByLevelRow( firstLevelValue = groupMap[firstLevelGroupByFieldName].toString(), secondLevelValue = groupMap[secondLevelGroupByFieldName]?.toString(), metricFieldValue = formatStatisticValue(statisticsMap[areaFieldAlias])?:"", ) result.add(tableQueryByLevelRow) } }.onFailure { e -&gt; throw e }</LI-CODE><P>&nbsp;<SPAN>I know how to statistic the total area by iterating through each feature, getting its geometry, and summing areas.</SPAN></P><P><SPAN><STRONG>Is there a better or more efficient method to statistic vector area?</STRONG></SPAN></P> Sun, 28 Sep 2025 00:49:31 GMT LiqiangZhu 2025-09-28T00:49:31Z https://community.esri.com/t5/kotlin-maps-sdk-questions/how-to-statistic-vector-area-from-a-local/m-p/1653696#M597 <P><SPAN>I am developing an Android application using the ArcGIS Maps SDK for Kotlin (version 200.6).I'm currently using&nbsp;StatisticsQueryParameters to perform statistics on other attribute fields in the FeatureTable, and it works well. Now I need to&nbsp;statistic vector area.</SPAN></P><LI-CODE lang="kotlin"> val statisticDefinition = StatisticDefinition( areaFieldName, metricFieldStatisticType, areaFieldAlias ) statisticDefinitions.add(statisticDefinition) val queryParameters = StatisticsQueryParameters(statisticDefinitions).apply { groupByFieldNames.add(firstLevelGroupByFieldName) secondLevelGroupByFieldName?.let { groupByFieldNames.add(it) } boundary?.let { geometry = it } } featureTable.queryStatistics(queryParameters).onSuccess { statisticsQueryResult -&gt; statisticsQueryResult.forEach { statisticRecord -&gt; val groupMap = statisticRecord.group val statisticsMap = statisticRecord.statistics val tableQueryByLevelRow = TableQueryRow.TableQueryByLevelRow( firstLevelValue = groupMap[firstLevelGroupByFieldName].toString(), secondLevelValue = groupMap[secondLevelGroupByFieldName]?.toString(), metricFieldValue = formatStatisticValue(statisticsMap[areaFieldAlias])?:"", ) result.add(tableQueryByLevelRow) } }.onFailure { e -&gt; throw e }</LI-CODE><P>&nbsp;<SPAN>I know how to statistic the total area by iterating through each feature, getting its geometry, and summing areas.</SPAN></P><P><SPAN><STRONG>Is there a better or more efficient method to statistic vector area?</STRONG></SPAN></P> Sun, 28 Sep 2025 00:49:31 GMT https://community.esri.com/t5/kotlin-maps-sdk-questions/how-to-statistic-vector-area-from-a-local/m-p/1653696#M597 LiqiangZhu 2025-09-28T00:49:31Z https://community.esri.com/t5/kotlin-maps-sdk-questions/how-to-statistic-vector-area-from-a-local/m-p/1656832#M601 <P>Hi,&nbsp;<BR />If you have enabled <EM><STRONG>Shape_Area</STRONG></EM>&nbsp;field on your feature layer, then you can use it as the attribute to perform the statistics query on it to compute the SUM/Average etc.&nbsp;<BR /><BR />Thanks<BR />Rama</P> Thu, 09 Oct 2025 19:23:56 GMT https://community.esri.com/t5/kotlin-maps-sdk-questions/how-to-statistic-vector-area-from-a-local/m-p/1656832#M601 RamaChintapalli 2025-10-09T19:23:56Z