R格式化日期

2024-04-12 07:10:04 441

示例

要格式化Dates我们使用format(date,format="%Y-%m-%d")函数无论是POSIXct（从给出的）或（从给出）as.POSIXct()POSIXltas.POSIXlt()

d = as.Date("2016-07-21") # Current Date Time Stamp

format(d,"%a")            # Abbreviated Weekday
## [1] "Thu"

format(d,"%A")            # Full Weekday
## [1] "Thursday"

format(d,"%b")            # Abbreviated Month
## [1] "Jul"

format(d,"%B")            # Full Month
## [1] "July"

format(d,"%m")            # 00-12 Month Format
## [1] "07"

format(d,"%d")            # 00-31 Day Format
## [1] "21"

format(d,"%e")            # 0-31 Day Format
## [1] "21"

format(d,"%y")            # 00-99 Year
## [1] "16"

format(d,"%Y")            # Year with Century
## [1] "2016"

有关更多信息，请参见?strptime。

R格式化日期

示例

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