分类：R语言lubridate包

2021
06-13

关于R语言lubridate包处理时间数据的问题

加载包#install.packages(lubridate)library(lubridate)第一个函数ymd():解析日期为年月日格式x<-c("09-01-01","09-01-02","09-01-03")ymd(x)[1]“2009-01-01”“2009-01-02”“2009-01-03”x<-c("2009-01-01","2009-01-02","2009-01-03")ymd(x)[1]“2009-01-01”“2009-01-02”“2009-01-03”>ymd(090101,90102)[1]“2009-01-01”“2009-01-02”和这个函数类似的还有ydm(),mdy(),mdy(),myd(),dmy(),dym()注：... 继续阅读 >