[R] why is 0 not an integer?

Nikos Alexandris nikos.alexandris at felis.uni-freiburg.de
Wed Aug 5 22:22:31 CEST 2009


On Wed, 2009-08-05 at 13:16 -0700, Steve Jaffe wrote:
> Why when I assign 0 to an element of an integer vector does the type change
> to numeric?
> Here is a particularly perplexing example:
> > v <- 0:10
> > v
>  [1]  0  1  2  3  4  5  6  7  8  9 10
> > class(v)
> [1] "integer"
> > v[1] <- 0

try this:
v <- as.integer(0)

Nikos

> > class(v)
> [1] "numeric"  #!!
> > 
>




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