# chunked
Discover `chunked` operation in Kotlin Dataframe.
Discover `chunked` operation in Kotlin Dataframe.
Discover `chunked` operation in Kotlin Dataframe.
Splits a [`DataFrame`](DataFrame.md) into consecutive sub-dataframes (chunks) and returns them as a
[`FrameColumn`](DataColumn.md#framecolumn). Chunks are formed in order and do not overlap.
Each chunk contains at most the specified number of rows.
The resulting `FrameColumn`’s name can be customized; by default, it is "groups."
`DataFrame` can be split into chunks in two ways:
- By fixed size: split into chunks of up to the given size.
- By start indices: split using custom zero-based start indices for each chunk; each chunk ends right before the next start index or the end of the DataFrame.
```kotlin
df.chunked(size: Int, name: String)
df.chunked(startIndices: List, name: String)
```
### Examples
```kotlin
df
```
Fixed size chunks:
```kotlin
df.chunked(size = 2)
```
Custom start indices:
```kotlin
df.chunked(startIndices = listOf(0, 1, 3), name = "segments")
```