相关疑难解决方法(0)

假设有一个日期框架,其中一列包含日期作为字符串.对于该假设,我们创建以下dataFrame作为示例:

# Importing sql types
from pyspark.sql.types import StringType, IntegerType, StructType, StructField, DoubleType, FloatType, DateType
from pyspark.sql.functions  import date_format
import random
import time

def strTimeProp(start, end, format, prop):
    stime = time.mktime(time.strptime(start, format)) # Parse a string representing a time according to a format
    etime = time.mktime(time.strptime(end, format)) 
    ptime = stime + prop * (etime - stime) 
    return time.strftime(format, time.localtime(ptime))

def randomDate(start, end, prop):
    return strTimeProp(start, end, '%m-%d-%Y', prop)

# Creación de un dataframe de prueba:
schema = StructType(
        [
     StructField("dates1", …