Hi miksanta.

They seem to be ordered variables (with specific notation for NA).
Some are qualitative and some quantitative



On Wed, Sep 2, 2009 at 4:19 PM, <miksanta@gmail.com> wrote:

> Hello,
>
> i have this dataset
> http://www.umass.edu/statdata/statdata/data/pharynx.txt.
>
> the variables GRADE, T_STAGE anda N_STAGE are qualitative or quantitative
> variables???
>
> i only have this simple doubt...!
>
> another example: why in the dataset ovarian (library survival) the variable
> ecog.ps: ECOG performance status (1 is better, see reference) it is
> consider quantitative?
>
>
> Thank's for all..!!
>
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