[R] Error in FUN(newX[, i], ...) : `x' must be atomic
blomsp at ozemail.com.au
Thu Jul 28 02:17:48 CEST 2005
Aah, OK. Thanks for the correction. I learn something new every day. That's
why I like this list! Serves me right for relying on my Lisp knowledge.
At 07:26 PM 27/07/2005, Peter Dalgaard wrote:
>Simon Blomberg <blomsp at ozemail.com.au> writes:
> > Actually, atoms are originally a Lisp concept. Objects are either atoms or
> > not. Atoms are data types that cannot be taken apart, such as numbers or
> > symbols. Lists and vectors (of length > 1) are examples of non-atomic
> > types. Did you pass a vector to FUN?
>Actually, vectors ARE atomic in R, so your definition is somewhat off
> > is.atomic(rnorm(5))
>In the extreme, the only true atom is the bit, everything else can be
>taken apart - doubles into (sign,exponent,mantissa) etc. So languages
>*define* their own atoms, as objects that are not composed of other
>objects in the language. (And even that is a partial lie for R,
>because atoms can have attributes. Atomicity is purely based on the
>type of an object. The help page has a list of the atomic types.)
> > Cheers,
> > Simon.
> > At 12:22 PM 27/07/2005, Srinivas Iyyer wrote:
> > >Hello Group,
> > > What is the meaning of the error. is there any place
> > >to look for this. I guess 'atomic' seems to be OOP
> > >related concept.
> > >
> > >thank you
> > >srini
> > >
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