Re: [R] Data matrix of all possible response patterns

From: Daniel Folkinshteyn <dfolkins_at_gmail.com>
Date: Thu, 26 Jun 2008 14:39:42 -0400

this is probably a cludge, and there may be a "neater" way to do this, but... here's one:

 > a = 0:1
 > for (i in 1:9){ a= merge(unname(a), 0:1) }
 > a = t(a)

after the for loop, 'a' will contain a 1024 row by 10 col dataframe. putting it through a transpose, gives you the 10 rows by 1024 cols matrix.

on 06/26/2008 02:18 PM SARAH A DEPAOLI said the following:
> I am looking for a way to generate a data matrix that contains all possible response patterns for 10 binary items. This should produce a matrix with 10 rows (representing 10 items) and 1024 columns (representing 2^10 possible response patterns). Does anyone know of code that would produce such a matrix?
>
> Thanks!
> Sarah Depaoli
>
> ______________________________________________
> R-help_at_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.
>



R-help_at_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. Received on Thu 26 Jun 2008 - 18:45:26 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 26 Jun 2008 - 19:31:04 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive