[R] how to convert character string with only month and year into date

[Henrique Dallazuanna]

Try this:

strptime(paste(1, c("03_1993")),"%d %m_%Y")
strptime(paste(1, c("03-1993")),"%d %m_%Y")

On Tue, Sep 22, 2009 at 4:03 PM, Sean Zhang <seanecon at gmail.com> wrote:
> Dear R helpers.
>
> I am new to plotting time data using R.
> wonder how to convert character time info into date in R.
> I searched over the web but did not find answer.
>
> the input character string is something like 03_1993 or 03-1993, so the
> precision is at month level.  I tried the following but failed.
> #R code below.
>
>  strptime(c("03_1993"),"%m_%Y")
> strptime(c("03-1993"),"%m-%Y")
>
> Can you someone kindly show me to do it?
>
> Many thanks in advance!
>
> -Sean
>
>        [[alternative HTML version deleted]]
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O