[R] Size of R user base
p.connolly at hortresearch.co.nz
Mon Apr 19 23:55:23 CEST 2004
On Mon, 19-Apr-2004 at 04:47PM -0500, Dirk Eddelbuettel wrote:
|> On Mon, Apr 19, 2004 at 10:27:25PM +0100, Prof Brian Ripley wrote:
|> > > less is not uncommon. A 12% penetration for the book in question
|> > > implies 42,000 R users; a more reasonable 5% penetration implies 100,000
|> > > users. A low 1% penetration implies 500,000 users.
|> > One S book has sold half your number of S-PLUS users, although some sales
|> > are known to be to R users.
|> But then you also need to control for different editions and serial buyers.
|> I happen to have purchased three different editions of a certain S-Plus / R
|> book now in its 4th edition.
|> My preference goes with the numbering scheme attributed to a tribe on some
|> island in the Pacific which consists of a 'factor' with four levels: 'one',
|> 'two', 'three', and 'lots'. Hence, I'd go with 'lots of R users'.
So how will you distinguish your 4th edition of a certain S-Plus / R
book from what comes next?
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