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Controleer of de kolomwaarde tussen onder- en bovengrenzen (inclusief) ligt.
Syntaxis
between(lowerBound, upperBound)
Parameterwaarden
| Kenmerk | Typ | Beschrijving |
|---|---|---|
lowerBound |
waarde of kolom | Ondergrenswaarde |
upperBound |
waarde of kolom | Bovengrenswaarde |
Retouren
Kolom (Booleaanse waarde)
Examples
Tussen met gehele getallen gebruiken:
df = spark.createDataFrame([(2, "Alice"), (5, "Bob")], ["age", "name"])
df.select(df.name, df.age.between(2, 4)).show()
# +-----+---------------------------+
# | name|((age >= 2) AND (age <= 4))|
# +-----+---------------------------+
# |Alice| true|
# | Bob| false|
# +-----+---------------------------+
Gebruik tussen tekenreekswaarden:
df = spark.createDataFrame([("Alice", "A"), ("Bob", "B")], ["name", "initial"])
df.select(df.name, df.initial.between("A", "B")).show()
# +-----+-----------------------------------+
# | name|((initial >= A) AND (initial <= B))|
# +-----+-----------------------------------+
# |Alice| true|
# | Bob| true|
# +-----+-----------------------------------+
Gebruiken tussen zwevende waarden:
df = spark.createDataFrame(
[(2.5, "Alice"), (5.5, "Bob")], ["height", "name"])
df.select(df.name, df.height.between(2.0, 5.0)).show()
# +-----+-------------------------------------+
# | name|((height >= 2.0) AND (height <= 5.0))|
# +-----+-------------------------------------+
# |Alice| true|
# | Bob| false|
# +-----+-------------------------------------+
Gebruiken tussen met datumwaarden:
import pyspark.sql.functions as sf
df = spark.createDataFrame(
[("Alice", "2023-01-01"), ("Bob", "2023-02-01")], ["name", "date"])
df = df.withColumn("date", sf.to_date(df.date))
df.select(df.name, df.date.between("2023-01-01", "2023-01-15")).show()
# +-----+-----------------------------------------------+
# | name|((date >= 2023-01-01) AND (date <= 2023-01-15))|
# +-----+-----------------------------------------------+
# |Alice| true|
# | Bob| false|
# +-----+-----------------------------------------------+
Tussen gebruiken met tijdstempelwaarden:
import pyspark.sql.functions as sf
df = spark.createDataFrame(
[("Alice", "2023-01-01 10:00:00"), ("Bob", "2023-02-01 10:00:00")],
schema=["name", "timestamp"])
df = df.withColumn("timestamp", sf.to_timestamp(df.timestamp))
df.select(df.name, df.timestamp.between("2023-01-01", "2023-02-01")).show()
# +-----+---------------------------------------------------------+
# | name|((timestamp >= 2023-01-01) AND (timestamp <= 2023-02-01))|
# +-----+---------------------------------------------------------+
# |Alice| true|
# | Bob| false|
# +-----+---------------------------------------------------------+