One option is to put all the data frames into a list then use the Reduce
function.


On Mon, Dec 17, 2012 at 9:03 AM, Vasilchenko Aleksander <
vasilchenko.a.p@gmail.com> wrote:

> Hello.
> I have for example 4 or more dataframe which like such this example:
>   date      value
>  2006-11 0.4577647
>  2006-12       NaN
>  2006-10 0.1577647
>  2006-11 0.3577647
>  2006-12       NaN
>  2007-01       NaN
>  2007-02       NaN
>  2007-03 0.2956429
>  2007-01 0.3677647
>  2007-02       NaN
>  They have the same length. I need merge by date undefined number of
> dataframes. End result output will look like such example
>   date      name1          name2      name3         name4   ....
>  2006-11 0.4577647     0.4577647   0.4577647  NaN
>  2006-12       NaN        NaN           0.4577647  0.4577647
>  2006-10 0.1577647     0.1577647   0.4577647  NaN
>  2006-11 0.3577647     0.8577647   0.4577647  0.4577647
>  2006-12       NaN        0.1577647   0.4577647  0.4577647
>  2007-01       NaN        0.2277647   NaN           0.1777647
>  2007-02       NaN        0.4577647   0.4577647  0.4477647
>  2007-03 0.2956429     NaN            0.4577647  0.1577647
>  2007-01 0.3677647     0.4577647   NaN7         0.4577647
>  2007-02       NaN        0.6577647   0.4577647  0.4577647
>
> Sincerely yours,
> Aleksander
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Gregory (Greg) L. Snow Ph.D.
538280@gmail.com

	[[alternative HTML version deleted]]


