在 R 编程中计算日期之间的时间差 - difftime()函数

R 语言中的difftime()函数用于以所需的单位（如天、周、月、年等）计算日期之间的时间差。

Syntax: difftime(date1, date2, units)

Parameters:
date1, date2: Dates to calculate difference
units: Days, weeks, months, etc.

示例 1：

# R program to find time difference
  
# Calling difftime() function
difftime("2020-5-16", "2020-1-15", units = "days")
difftime("2020-5-16", "2020-1-15", units = "weeks")

输出：

Time difference of 122 days
Time difference of 17.42857 weeks

示例 2：

# R program to find time difference
  
# Calling difftime() function
difftime("2020-5-16", "2020-1-15", units = "hours")
difftime("2020-5-16", "2020-1-15", units = "mins")

输出：

Time difference of 2928 hours
Time difference of 175680 mins