Nota
L-aċċess għal din il-paġna jeħtieġ l-awtorizzazzjoni. Tista’ tipprova tidħol jew tibdel id-direttorji.
L-aċċess għal din il-paġna jeħtieġ l-awtorizzazzjoni. Tista’ tipprova tibdel id-direttorji.
Computes hyperbolic tangent of the input column. Supports Spark Connect.
For the corresponding Databricks SQL function, see tanh function.
Syntax
from pyspark.sql import functions as dbf
dbf.tanh(col=<col>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col |
pyspark.sql.Column or column name |
hyperbolic angle |
Returns
pyspark.sql.Column: hyperbolic tangent of the given value as if computed by 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|
+-----+-----------+