Functions.Log Method

Definition

Namespace:

Microsoft.Spark.Sql

Assembly:

Microsoft.Spark.dll

Package:

Microsoft.Spark v1.0.0

Overloads

Log(Double, Column)	Computes the first argument-base logarithm of the second argument.
Log(Double, String)	Computes the first argument-base logarithm of the second argument.
Log(Column)	Computes the natural logarithm of the given value.
Log(String)	Computes the natural logarithm of the given value.

Log(Double, Column)

Computes the first argument-base logarithm of the second argument.

public static Microsoft.Spark.Sql.Column Log (double logBase, Microsoft.Spark.Sql.Column column);

static member Log : double * Microsoft.Spark.Sql.Column -> Microsoft.Spark.Sql.Column

Public Shared Function Log (logBase As Double, column As Column) As Column

Parameters

logBase

Double

Base for logarithm

column

Column

Column to apply

Returns

Column

Column object

Log(Double, String)

Computes the first argument-base logarithm of the second argument.

public static Microsoft.Spark.Sql.Column Log (double logBase, string columnName);

static member Log : double * string -> Microsoft.Spark.Sql.Column

Public Shared Function Log (logBase As Double, columnName As String) As Column

Parameters

logBase

Double

Base for logarithm

columnName

String

Column name

Returns

Column

Column object

Log(Column)

Computes the natural logarithm of the given value.

public static Microsoft.Spark.Sql.Column Log (Microsoft.Spark.Sql.Column column);

static member Log : Microsoft.Spark.Sql.Column -> Microsoft.Spark.Sql.Column

Public Shared Function Log (column As Column) As Column

Parameters

column

Column

Column to apply

Returns

Column

Column object

Log(String)

Computes the natural logarithm of the given value.

public static Microsoft.Spark.Sql.Column Log (string columnName);

static member Log : string -> Microsoft.Spark.Sql.Column

Public Shared Function Log (columnName As String) As Column

Parameters

columnName

String

Column name

Returns

Column

Column object