[R] subsetting character vector into groups of numerics

[Ott Toomet]

On Tue, 29 Oct 2002, Patrick Connolly wrote:

...

  ||> and once we have those we might use scan() on each string to get the
  ||> numbers. This requires the use of a text connection, like this
  ||> 
  ||> > lapply(s[[1]], function(x)scan(textConnection(x)))
  |
  |I'd never had occasion to use textConnection before and was completely
  |ignorant of its existence.  Certainly simpler than my idea of
  |exporting text files and then using a Perl script and then importing
  |back in.

I had used strsplit and as.numeric in that place, e.g.

> a <- c("12 13 14 15 16 888")
> as.numeric(unlist(strsplit(a, " ")))
> [1]  12  13  14  15  16 888

But perhaps Peter's idea is better.

Ott

-- 
Ott Toomet
otoomet at econ.au.dk
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