fillNA

fun <T, C> DataFrame<T>.fillNA(columns: ColumnsSelector<T, C?>): Update<T, C?>

The Fill NA Operation

Replaces NA values with the given value or expression. Specific case of update.

Check out: Grammar

For more information: See fillNA on the documentation website.

See also dropNA, which removes rows with NA values instead of replacing these values.

    

The columns to update need to be selected. See Selecting Columns for all the selecting options.

This Fill NA Overload

Select or express columns using the Columns Selection DSL.

This DSL is initiated by a Columns Selector lambda, which operates in the context of the Columns Selection DSL and expects you to return a SingleColumn or ColumnSet (so, a ColumnsResolver). This is an entity formed by calling any (combination) of the functions in the DSL that is or can be resolved into one or more columns.

The Columns Selection DSL allows using Extension Properties for specifying columns type- and name-safe.

Check out: Columns Selection DSL Grammar

    

See Column Selectors on the documentation website.

For example:

df.fillNA{ length andage }

df.fillNA{ cols(1..5) }

df.fillNA{ colsOf<Double>() }

Parameters

columns

The Columns Selector used to select the columns of this DataFrame to update.


fun <T> DataFrame<T>.fillNA(vararg columns: String): Update<T, Any?>

The Fill NA Operation

Replaces NA values with the given value or expression. Specific case of update.

Check out: Grammar

For more information: See fillNA on the documentation website.

See also dropNA, which removes rows with NA values instead of replacing these values.

    

The columns to update need to be selected. See Selecting Columns for all the selecting options.

This Fill NA Overload

Select single or multiple columns using their names as Strings. (String API).

For example:

df.fillNA("length", "age")

Parameters

columns

The Strings corresponding to the names of columns belonging to this DataFrame to update.


fun <T, C> DataFrame<T>.fillNA(vararg columns: KProperty<C>): Update<T, C?>

Deprecated

It's recommended to migrate to the String or Extension Properties Access API https://kotlin.github.io/dataframe/apilevels.html

The Fill NA Operation

Replaces NA values with the given value or expression. Specific case of update.

Check out: Grammar

For more information: See fillNA on the documentation website.

See also dropNA, which removes rows with NA values instead of replacing these values.

    

The columns to update need to be selected. See Selecting Columns for all the selecting options.

This Fill NA Overload

Parameters

columns

The KProperties corresponding to columns of this DataFrame to update.


fun <T, C> DataFrame<T>.fillNA(vararg columns: ColumnReference<C>): Update<T, C?>

Deprecated

It's recommended to migrate to the String or Extension Properties Access API https://kotlin.github.io/dataframe/apilevels.html

The Fill NA Operation

Replaces NA values with the given value or expression. Specific case of update.

Check out: Grammar

For more information: See fillNA on the documentation website.

See also dropNA, which removes rows with NA values instead of replacing these values.

    

The columns to update need to be selected. See Selecting Columns for all the selecting options.

This Fill NA Overload

Parameters

columns

The Column References of this DataFrame to update.