kurtosis
Retourne l'aplatissement des valeurs d'un groupe.
Syntaxe
Python
from pyspark.sql import functions as sf
sf.kurtosis(col)
parameter
parameter | Type | Description |
|---|---|---|
|
| Colonne cible sur laquelle effectuer le calcul. |
Renvoie
pyspark.sql.Column: kurtosis de la colonne donnée.
Exemples
Python
from pyspark.sql import functions as sf
df = spark.createDataFrame([[1],[1],[2]], ["c"])
result = df.select(sf.kurtosis(df.c)).collect()[0][0]
spark.createDataFrame([(result < -1.49 and result > -1.51,)], ["within_expected_range"]).show()
Output
+---------------------+
|within_expected_range|
+---------------------+
| true|
+---------------------+