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[英]I am new to r. I am trying to make my code less complicated by using a for loop
[英]I am new to r. How can I convert a data frame variable value from a number to a name? See code below
>may_jfk<-may_df%>%filter(origin=="JFK")
>may_jfk
> str(may_jfk)
'data.frame': 9397 obs. of 4 variables:
$ origin : chr "JFK" "JFK" "JFK" "JFK" ...
$ flight : int 413 701 5716 715 315 1169 303 1657 203 195 ...
$ month : int 5 5 5 5 5 5 5 5 5 5 ...
$ dep_time: int 9 537 555 557 603 605 605 605 621 621 ...
如何將 $month 從“5”更改為“May”?
我們可以在base R
中使用month.abb
may_jfk$month <- month.abb[may_jfk$month]
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