[R-sig-Geo] Soil as predictor in SDM

Narayani Barve narayani.ku at gmail.com
Wed Sep 27 17:06:39 CEST 2017

You can use categorical variable as categorical even with number. If you
are using Maxent, then you can specify that this variable as categorical.
And maxent will take care of it. On the safer side instead of specifying
the categories as numbers, change categories to characters.


On Wed, Sep 27, 2017 at 10:59 AM, Maurizio Marchi <
mauriziomarchi85 at gmail.com> wrote:

> Dear R users,
> I would like to include soil as predictor in my model and in addition to
> climatic variables. Anyway I have some doubts concerning the usd of
> categorical values such as the format of my raster file. Actually, my soil
> type data are categorical codes, should these codes be described as
> categories prior to be used? Or shoul I reclassify my raster into numeric
> values? My main concern is if I would create directional influence and bias
> in the results.
> Thanks
> --
> Maurizio Marchi
> Skype ID: maurizioxyz
> linux user 552742
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