log10
Computes the logarithm of the given value in Base 10. Supports Spark Connect.
For the corresponding Databricks SQL function, see log10 function.
Syntax
Python
from pyspark.sql import functions as dbf
dbf.log10(col=<col>)
Parameters
Parameter | Type | Description |
|---|---|---|
|
| column to calculate logarithm for. |
Returns
pyspark.sql.Column: logarithm of the given value in Base 10.
Examples
Python
from pyspark.sql import functions as dbf
df = spark.createDataFrame([(1,), (10,), (100,)], ["value"])
df.select("*", dbf.log10(df.value)).show()
Output
+-----+------------+
|value|LOG10(value)|
+-----+------------+
| 1| 0.0|
| 10| 1.0|
| 100| 2.0|
+-----+------------+
Python
from pyspark.sql import functions as dbf
spark.sql("SELECT * FROM VALUES (-1), (0), (FLOAT('NAN')), (NULL) AS TAB(value)").select("*", dbf.log10("value")).show()
Output
+-----+------------+
|value|LOG10(value)|
+-----+------------+
| -1.0| NULL|
| 0.0| NULL|
| NaN| NaN|
| NULL| NULL|
+-----+------------+