Merge worked! Thanks!!!
On 11/28/07, Matthew Keller <[EMAIL PROTECTED]> wrote:
>
> Tom,
>
> Check out ?merge. Does exactly what you need
>
> Matt
>
> On Nov 28, 2007 11:27 AM, tom soyer <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I have two sets of data that I would like to put into a data frame. But
> > since they have different length, I am not sure how to do this. Here is
> an
> > example of my data:
> >
> > data set one:
> > date growth
> > 1/1/2007 10
> > 1/2/2007 10.2
> > 1/3/2007 10.4
> > 1/4/2007 10.6
> >
> > data set two:
> > date growth
> > 1/1/2007 22
> > 1/2/2007 22.5
> > 1/4/2007 22.4
> >
> > I would like to combine the two data sets and create a data frame like
> this:
> > date growthA growthB
> > 1/1/2007 10 22
> > 1/2/2007 10.2 22.5
> > 1/3/2007 10.4 NA
> > 1/4/2007 10.6 22.4
> >
> > Or skipping the missing data point all together, like this:
> > date growthA growthB
> > 1/1/2007 10 22
> > 1/2/2007 10.2 22.5
> > 1/4/2007 10.6 22.4
> >
> > Right now I am doing this by hand, and it is really time consuming. I am
> > wondering if there is an easier way of creating data frames from unequal
> > length data using existing R functions. Is there a way to create data
> > with equal length based on the date column? I would appreciate any help
> from
> > the group.
> >
> > Thanks,
> >
> > --
> > Tom
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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.
> >
>
>
>
> --
> Matthew C Keller
> Asst. Professor of Psychology
> University of Colorado at Boulder
> www.matthewckeller.com
>
--
Tom
[[alternative HTML version deleted]]
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