[R] looking for a string

[Ricardo Rodriguez] Your XEN ICT Team webmaster at xen.net
Tue Apr 15 23:48:12 CEST 2008

Thanks all,

markleeds at verizon.net wrote:
>> From: "[Ricardo Rodriguez] Your XEN ICT Team" <webmaster at xen.net>
>> Date: 2008/04/14 Mon PM 07:43:23 CDT
>> To: Henrique Dallazuanna <wwwhsd at gmail.com>, r-help at r-project.org
>> Subject: Re: [R] looking for a string
> henrique means to use his command directly and
> forget about subset. subset probably doesn't
> let you do what you want to do.
Mark, I've finally found an example that helps me to understand what 
Henrique said. Here it is:

## sometimes requiring a logical 'subset' argument is a nuisance
nm <- rownames(state.x77)
start_with_M <- nm %in% grep("^M", nm, value=TRUE)
subset(state.x77, start_with_M, Illiteracy:Murder)

Coming from http://wiki.r-project.org/rwiki/doku.php?id=rdoc:base:subset

What I am not able to understand yet is Charles's proposal. Any insight 
will be welcome!



Ricardo Rodríguez
Your XEN ICT Team

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