[R] as.character() problem?
Prof Brian Ripley
ripley at stats.ox.ac.uk
Mon Dec 4 17:10:42 CET 2000
> Date: Mon, 4 Dec 2000 15:56:44 +0000 (GMT)
> From: Simon Wood <snw at mcs.st-and.ac.uk>
> To: r-help at stat.math.ethz.ch
> Subject: [R] as.character() problem?
> The following is pasted from 1.1.0 under Windows NT (same thing happens
> under linux). The problem is that part of the model formula is lost when
> coerced to character. Is this supposed to happen?
> >reg.form<- formula(y~ lat + lon + depth + sunel + btmtemp + btmsal +
> sediment + sediment*sunel + lon*lat)
> > reg.form
> y ~ lat + lon + depth + sunel + btmtemp + btmsal + sediment +
> sediment * sunel + lon * lat
> > as.character(reg.form)
>  "~"
>  "y"
>  "lat + lon + depth + sunel + btmtemp + btmsal + sediment + sediment *"
Yes. I think you wanted deparse(reg.form): a formula has mode "call"
and is an expression (more or less).
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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