[Pyspark] functions
print((df.count(), len(df.columns)))
https://jaeyung1001.tistory.com/59
[Pyspark] pyspark 함수 정리(1)
csv, parquet파일 읽어오기 1 2 3 4 5 6 7 8 9 10 # CSV 파일 읽기 df = spark.read.csv("...") df.printSchema() df.show() # parquet으로 저장된 파일 읽기 df2 = spark.read.parquet("...") df2.pr..
jaeyung1001.tistory.com
https://stackoverflow.com/questions/39652767/pyspark-2-0-the-size-or-shape-of-a-dataframe
PySpark 2.0 The size or shape of a DataFrame
I am trying to find out the size/shape of a DataFrame in PySpark. I do not see a single function that can do this. In Python I can do data.shape() Is there a similar function in PySpark. This is...
stackoverflow.com
https://spark.apache.org/docs/latest/api/python/pyspark.html?highlight=foreach
pyspark package — PySpark 3.0.1 documentation
Compute a histogram using the provided buckets. The buckets are all open to the right except for the last which is closed. e.g. [1,10,20,50] means the buckets are [1,10) [10,20) [20,50], which means 1<=x<10, 10<=x<20, 20<=x<=50. And on the input of 1 and 5
spark.apache.org