On 21 Aug 2003 at 20:40, kjetil brinchmann halvorsen wrote:
After some private responses I did what I should have done at
beginning, opened S Programming at page 15. It is much clearer than
the FAQ, which I think is slighly misleading.
Kjetil Halvorsen
Hola!
The R FAQ says:
7.12 How
Hola!
The R FAQ says:
7.12 How do I convert factors to numeric?
It may happen that when reading numeric data into R (usually, when
reading in a file), they come in as factors. If f is such a factor
object, you can use
as.numeric(as.character(f))
to get the numbers back. More efficient, but
Kjetil -
EdadC seems to have only five levels, anyway. What are those
five levels ? Are they strings which it would make sense to
interpret as numeric ? as.numeric() obviously thinks they
are not.
- tom blackwell - u michigan medical school - ann arbor -
On Thu, 21 Aug 2003, kjetil
