pyspark.sql.functions.ln#

pyspark.sql.functions.ln(col)[source]#

Returns the natural logarithm of the argument.

Added in version 3.5.0.

Parameters:

colColumn or str: a column to calculate logariphm for. A column that evaluates to a double.

Returns:

Column: natural logarithm of given value. Returns a column that evaluates to a double.

See also

pyspark.sql.functions.log()

Examples

>>> from pyspark.sql import functions as sf
>>> spark.range(10).select("*", sf.ln('id')).show()
+---+------------------+
| id|            ln(id)|
+---+------------------+
|  0|              NULL|
|  1|               0.0|
|  2|0.6931471805599...|
|  3|1.0986122886681...|
|  4|1.3862943611198...|
|  5|1.6094379124341...|
|  6| 1.791759469228...|
|  7|1.9459101490553...|
|  8|2.0794415416798...|
|  9|2.1972245773362...|
+---+------------------+