17 lines
442 B
Markdown
Vendored
17 lines
442 B
Markdown
Vendored
[//]: # (title: add)
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<!---IMPORT org.jetbrains.kotlinx.dataframe.samples.api.Modify-->
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Returns [`DataFrame`](DataFrame.md) with union of columns from several given [`DataFrame`](DataFrame.md) objects.
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<!---FUN addDataFrames-->
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```kotlin
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df.addAll(df1, df2)
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```
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<inline-frame src="resources/org.jetbrains.kotlinx.dataframe.samples.api.Modify.addDataFrames.html" width="100%"/>
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<!---END-->
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See [all use cases of 'add' operation](add.md).
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