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dataframe/docs/StardustDocs/topics/xs.md

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+[//]: # (title: xs)
+
+<!---IMPORT org.jetbrains.kotlinx.dataframe.samples.api.Access-->
+
+Return cross-section from the [`DataFrame`](DataFrame.md).
+
+Filters [`DataFrame`](DataFrame.md) by matching key values with key columns and removes key columns.
+
+```
+xs(vararg keyValues: Any?)
+     [ { keyColumns } ]
+```
+
+When `keyColumns` are not specified, it takes first `n` columns in dfs order (looking inside [`ColumnGroup`](DataColumn.md#columngroup)), where `n` is a number of given `keyValues`.
+
+<!---FUN xs-->
+
+```kotlin
+df.xs("Charlie", "Chaplin")
+
+df.xs("Moscow", true) { city and isHappy }
+```
+
+<inline-frame src="resources/org.jetbrains.kotlinx.dataframe.samples.api.Access.xs.html" width="100%"/>
+<!---END-->