[//]: # (title: valueCounts)

<!---IMPORT org.jetbrains.kotlinx.dataframe.samples.api.Analyze-->

Return [`DataFrame`](DataFrame.md) containing counts of unique values in [`DataFrame`](DataFrame.md) 
or [`DataColumn`](DataColumn.md).

```kotlin
valueCounts(sort = true, ascending = false, dropNA = false)
     [ { columns } ]
```

See [column selectors](ColumnSelectors.md) for how to select the columns for this operation.

**Parameters:**
* `sort: Boolean = true` — sort by count
* `ascending: Boolean = false` — sort in ascending order
* `dropNA: Boolean = true` — don't include counts of [`NA`](nanAndNa.md) values 
* `columns = all` — columns to use when counting unique combinations 

<!---FUN valueCounts-->

```kotlin
df.city.valueCounts()

df.valueCounts { name and city }
```

<inline-frame src="resources/org.jetbrains.kotlinx.dataframe.samples.api.Analyze.valueCounts.html" width="100%"/>
<!---END-->