atanh

Calcula la tangente hiperbólica inversa de la columna de entrada. Soporta Spark Connect.

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

Syntax

from pyspark.sql import functions as dbf

dbf.atanh(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: la columna para los resultados calculados.

Examples

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

+-----+-------------------+
|value|       ATANH(value)|
+-----+-------------------+
| -0.5|-0.5493061443340...|
|  0.0|                0.0|
|  0.5| 0.5493061443340...|
+-----+-------------------+

from pyspark.sql import functions as dbf
spark.sql("SELECT * FROM VALUES (-2), (2), (FLOAT('NAN')), (NULL) AS TAB(value)").select("*", dbf.atanh("value")).show()

+-----+------------+
|value|ATANH(value)|
+-----+------------+
| -2.0|         NaN|
|  2.0|         NaN|
|  NaN|         NaN|
| NULL|        NULL|
+-----+------------+