Tanh

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

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

Syntax

from pyspark.sql import functions as dbf

dbf.tanh(col=<col>)

Parámetros

Parámetro	Tipo	Description
col	pyspark.sql.Column or column name	Ángulo hiperbólico

Devoluciones

pyspark.sql.Column: tangente hiperbólica del valor especificado como si se calculara mediante java.lang.Math.tanh()

Examples

from pyspark.sql import functions as dbf
df = spark.createDataFrame([(-1,), (0,), (1,)], ["value"])
df.select("*", dbf.tanh(df.value)).show()

+-----+-------------------+
|value|        TANH(value)|
+-----+-------------------+
|   -1|-0.7615941559557...|
|    0|                0.0|
|    1| 0.7615941559557...|
+-----+-------------------+

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

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