array_min

Mengembalikan nilai minimum dari array.

Syntax

from pyspark.sql import functions as sf

sf.array_min(col)

Parameter-parameternya

Pengaturan	Tipe	Description
col	pyspark.sql.Column atau str	Nama kolom atau ekspresi yang mewakili array.

Pengembalian Barang

pyspark.sql.Column: Kolom baru yang berisi nilai minimum setiap array.

Examples

Contoh 1: Penggunaan dasar dengan array bilangan bulat

from pyspark.sql import functions as sf
df = spark.createDataFrame([([2, 1, 3],), ([None, 10, -1],)], ['data'])
df.select(sf.array_min(df.data)).show()

+---------------+
|array_min(data)|
+---------------+
|              1|
|             -1|
+---------------+

Contoh 2: Penggunaan dengan array string

from pyspark.sql import functions as sf
df = spark.createDataFrame([(['apple', 'banana', 'cherry'],)], ['data'])
df.select(sf.array_min(df.data)).show()

+---------------+
|array_min(data)|
+---------------+
|          apple|
+---------------+

Contoh 3: Penggunaan dengan array tipe campuran

from pyspark.sql import functions as sf
df = spark.createDataFrame([(['apple', 1, 'cherry'],)], ['data'])
df.select(sf.array_min(df.data)).show()

+---------------+
|array_min(data)|
+---------------+
|              1|
+---------------+

Contoh 4: Penggunaan dengan array array

from pyspark.sql import functions as sf
df = spark.createDataFrame([([[2, 1], [3, 4]],)], ['data'])
df.select(sf.array_min(df.data)).show()

+---------------+
|array_min(data)|
+---------------+
|         [2, 1]|
+---------------+

Contoh 5: Penggunaan dengan array kosong

from pyspark.sql import functions as sf
from pyspark.sql.types import ArrayType, IntegerType, StructType, StructField
schema = StructType([
  StructField("data", ArrayType(IntegerType()), True)
])
df = spark.createDataFrame([([],)], schema=schema)
df.select(sf.array_min(df.data)).show()

+---------------+
|array_min(data)|
+---------------+
|           NULL|
+---------------+