[R] Need a variant of rbind for datasets with different numbers of columns

hadley wickham h.wickham at gmail.com
Thu Aug 23 15:55:04 CEST 2007

You might try rbind.fill in the reshape package.


On 8/22/07, Kirsten Beyer <kirsten-beyer at uiowa.edu> wrote:
> Hello.  I am looking for a function that will allow me to paste rows
> together without regard for the numbers of columns in the datasets to
> be joined.  The only columns where it matters if they are aligned
> correctly are at the beginning - the rest of the columns represent
> differing numbers of ICD9 (disease) codes reported by each
> person(record) at a health visit.  They are in no particular order.
> For example, a result would look like this:
> patient          ICD91          ICD92          ICD93
> patient A       12345          6789            1543
> patient B        3469           9090
> patient C       1234
> I am trying to accomplish this inside a loop which first identifies
> the codes associated with the person and then joins them to the
> person.  I have the code working so that it can create a row for each
> person, but I can't figure out how to join these rows together!  FYI,
> my dataset has 200,000+ people.
> Thanks
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