pyspark.ml.connect.functions.array_to_vector#

pyspark.ml.connect.functions.array_to_vector(col)[source]#

Converts a column of array of numeric type into a column of pyspark.ml.linalg.DenseVector instances

New in version 3.1.0.

Changed in version 3.5.0: Supports Spark Connect.

Parameters

colpyspark.sql.Column or str: Input column

Returns

pyspark.sql.Column: The converted column of dense vectors.

Examples

>>> from pyspark.ml.functions import array_to_vector
>>> df1 = spark.createDataFrame([([1.5, 2.5],),], schema='v1 array<double>')
>>> df1.select(array_to_vector('v1').alias('vec1')).collect()
[Row(vec1=DenseVector([1.5, 2.5]))]
>>> df2 = spark.createDataFrame([([1.5, 3.5],),], schema='v1 array<float>')
>>> df2.select(array_to_vector('v1').alias('vec1')).collect()
[Row(vec1=DenseVector([1.5, 3.5]))]
>>> df3 = spark.createDataFrame([([1, 3],),], schema='v1 array<int>')
>>> df3.select(array_to_vector('v1').alias('vec1')).collect()
[Row(vec1=DenseVector([1.0, 3.0]))]