# 68. Mutation: 「VectorAnalysisMap」の統計を更新

ゾーンマップの統計を更新します。UI上でゾーンの結合/分割が行われたときに使用できます。

{% hint style="info" %}
確認する <https://geopard.tech/blog/merge-and-split-zones/> 記事。&#x20;
{% endhint %}

統計をデータベースに保存せずに更新するミューテーション。レスポンスには再計算された統計がJSONとして含まれます。

{% code overflow="wrap" lineNumbers="true" %}

```graphql
mutation RefreshVectorAnalysisStatistics {
  refreshVectorAnalysisMapStatistics(
    input: { 
      uuid: "<placeholder_of_vectoranalysismap_uuid>",
      fieldUuid: "<placeholder_of_field_uuid>",
      areaUnit: <area_unit>,
      zonesMapGeojson: "<geojson_with_escaped_doubel_quotes>"
    }
  )
}
```

{% endcode %}


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