如何根据R中的条件获取下个月或当前月
我有下面的数据,我需要从中创建一个计算字段-Change\u Month 变更月的psuedo代码为: 如果变更日期小于当月15日,则变更月份为当月,否则为下一个月如何根据R中的条件获取下个月或当前月,r,if-statement,mutate,R,If Statement,Mutate,我有下面的数据,我需要从中创建一个计算字段-Change\u Month 变更月的psuedo代码为: 如果变更日期小于当月15日,则变更月份为当月,否则为下一个月 Adv_Code Change_Dt A201 12/04/2017 A198 27/07/2017 S1212 10/11/2017 我尝试过: df = mutate(df, Change_Month = months(Chan
Adv_Code Change_Dt
A201 12/04/2017
A198 27/07/2017
S1212 10/11/2017
我尝试过:
df = mutate(df,
Change_Month = months(Change_Dt,abbreviate = FALSE))
注意:更改是字符数据类型
Expected output:
Adv_Code Change_Dt Change_Month
A201 12/04/2017 April
A198 27/07/2017 August
S1212 10/11/2017 November
有人能在mutate语句中帮助我获得所需的输出吗?我们可以使用
round\u date
fromlubridate
library(lubridate)
df$Change_Month <- format(round_date(dmy(df$Change_Dt), unit = "month"), "%B")
df
# Adv_Code Change_Dt Change_Month
#1 A201 12/04/2017 April
#2 A198 27/07/2017 August
#3 S1212 10/11/2017 November
库(lubridate)
df$Change\u月
df$Change_Dt <- as.Date(df$Change_Dt, "%d/%m/%Y")
with(df, ifelse(as.integer(format(Change_Dt, "%d")) < 15,
format(Change_Dt, "%B"), format(Change_Dt + 30, "%B")))
#[1] "April" "August" "November"