atan

Calcular tangente inversa de la columna de entrada. Soporta Spark Connect.

Para obtener la función SQL de Databricks correspondiente, consulte atan function.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.atan(col=<col>)

Parámetros

Parámetro	Tipo	Description
col	pyspark.sql.Column or column name	columna de destino en la que se va a calcular.

Devoluciones

pyspark.sql.Column: tangente inversa de col, como si se calculara mediante java.lang.Math.atan()

Examples

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(-0.5,), (0.0,), (0.5,)], ["value"])
df.select("*", dbf.atan(df.value)).show()

+-----+-------------------+
|value|        ATAN(value)|
+-----+-------------------+
| -0.5|-0.4636476090008...|
|  0.0|                0.0|
|  0.5| 0.4636476090008...|
+-----+-------------------+

from pyspark.databricks.sql import functions as dbf
spark.sql(
    "SELECT * FROM VALUES (FLOAT('NAN')), (NULL) AS TAB(value)"
).select("*", dbf.atan("value")).show()

+-----+-----------+
|value|ATAN(value)|
+-----+-----------+
|  NaN|        NaN|
| NULL|       NULL|
+-----+-----------+