cosh

Calcule le cosinus hyperbolique de la colonne d'entrée. Prend en charge Spark Connect.

Pour la fonction Databricks SQL correspondante, consultez la fonctioncosh.

Syntaxe

Python

from pyspark.sql import functions as dbf

dbf.cosh(col=<col>)

parameter

parameter	Type	Description
col	pyspark.sql.Column or column name	angle hyperbolique

parameter	Type	Description
col	pyspark.sql.Column or column name	angle hyperbolique

Renvoie

pyspark.sql.Column: cosinus hyperbolique de l'angle, comme si calculé par java.lang.Math.cosh()

Exemples

Python

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

Output

+-----+-----------------+
|value|      COSH(value)|
+-----+-----------------+
|   -1|1.543080634815...|
|    0|              1.0|
|    1|1.543080634815...|
+-----+-----------------+

Python

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

Output

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