asin
Calcule le sinus inverse de la colonne d'entrée. Prend en charge Spark Connect.
Pour la fonction Databricks SQL correspondante, consultez la fonctionasin.
Syntaxe
Python
from pyspark.sql import functions as dbf
dbf.asin(col=<col>)
parameter
parameter | Type | Description |
|---|---|---|
|
| colonne cible sur laquelle effectuer le compute. |
Renvoie
pyspark.sql.Column: sinus inverse de col, comme si calculé par java.lang.Math.asin()
Exemples
Python
from pyspark.sql import functions as dbf
df = spark.createDataFrame([(-0.5,), (0.0,), (0.5,)], ["value"])
df.select("*", dbf.asin(df.value)).show()
Output
+-----+-------------------+
|value| ASIN(value)|
+-----+-------------------+
| -0.5|-0.5235987755982...|
| 0.0| 0.0|
| 0.5| 0.5235987755982...|
+-----+-------------------+
Python
from pyspark.sql import functions as dbf
spark.sql("SELECT * FROM VALUES (-2), (2), (NULL) AS TAB(value)").select("*", dbf.asin("value")).show()
Output
+-----+-----------+
|value|ASIN(value)|
+-----+-----------+
| -2| NaN|
| 2| NaN|
| NULL| NULL|
+-----+-----------+