There are a few similar questions I've seen that attempt to answer this question, but none are quite right for my problem.
Converting dates from excel to R
How do I convert dates in this format to a date class in R?
I have dates:
dates <- c("16 Jan 63", "16 Jan 73", "17 Jul 62", "25 Aug 60")
all years begin with "19-"
The obvious solution I thought to use was the as.Date
, or strptime
functions:
dates <- as.Date(dates, "%d %b %y")
dates
[1] "2063-01-16" "2073-01-16" "2062-07-17" "2060-08-25"
As you can see, the problem is with the year, none are correctly converted.
My next solution was to use strsplit
:
dates <- c("16 Jan 63", "16 Jan 73", "17 Jul 62", "25 Aug 60")
new.dates <- strsplit(dates, " ")
new.dates
[[1]]
[1] "16" "Jan" "63"
[[2]]
[1] "16" "Jan" "73"
# etc
However the problem begins when I try to paste "19" in front of the year, and then collapse them back into the same character.
new.dates[?] <- paste0("19", new.dates[?])
new.dates[?] <- paste(new.dates[?], collapse = " ")
I have no idea what the dimensions are supposed to be for pasting. Eventually I want to format the dates using:
new.dates <- strptime(new.dates, "%d %b %Y")
new.dates <- as.Date(new.dates)
If anyone has any suggestions on how to do this, or a link to an already answered question, it would be much appreciated.