[R] Convert Character to Date

[Gabor Grothendieck]

The yearmon class in the zoo package can represent year/months:

> library(zoo)
> ym <- as.yearmon("1990-January", "%Y-%B"); ym
[1] "Jan 1990"
> as.Date(ym)
[1] "1990-01-01"


On Tue, Mar 31, 2009 at 3:14 AM, Bob Roberts <quagmire54321 at yahoo.com> wrote:
> Hello,
>   I have a date in the format Year-Month Name (e.g. 1990-January) and R classes it as a character. I want to convert this character into a date format, but when I try as.Date(1990-January, "%Y-%B"), I get back NA. The function strptime also gives me NA back. Thanks.
>
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