pyspark.sql.functions.covar_pop#
- pyspark.sql.functions.covar_pop(col1, col2)[source]#
Returns a new
Column
for the population covariance ofcol1
andcol2
.New in version 2.0.0.
Changed in version 3.4.0: Supports Spark Connect.
- Parameters
- Returns
Column
covariance of these two column values.
See also
Examples
>>> from pyspark.sql import functions as sf >>> a = [1] * 10 >>> b = [1] * 10 >>> df = spark.createDataFrame(zip(a, b), ["a", "b"]) >>> df.agg(sf.covar_pop("a", df.b)).show() +---------------+ |covar_pop(a, b)| +---------------+ | 0.0| +---------------+