[R] Need a variant of rbind for datasets with different numbers of columns
jholtman at gmail.com
Thu Aug 23 02:26:47 CEST 2007
Where is the data coming from since it has a variable number of
columns in each row? Is it coming from a text file? If so, you can
use the "fill=TRUE" option when reading to fill out empty columns.
You need to provide at least a subset of the data so we can see what
you are working with.
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.
> R-help at stat.math.ethz.ch mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
+1 513 646 9390
What is the problem you are trying to solve?
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