Nominal data - raster calculation

[ToniRamirez]

Hello All, 

I have land cover data that I will be using in a landslide susceptibility map using logistic regression. The authors of the land cover data have already added pixel values for the different vegetation types. The susceptibility model that I am following has different coefficients for each type of vegetation. I am not sure how to specifically calculate for each vegetation type because there all within the Land Cover raster. I also have lithology data that I will be using as a proxy for rock strength and was wondering how I would go about adding that value to each pixel for its respective category. 

Any advice would be much appreciated.  

[JuanSantos]

Hi Toni Ramirez

It would be advisable to perform the calculations separately for each type of vegetation

If you also have lithological data, it is recommended that you also separate them.

Finally to get a final raster you can do raster sum

Everything will depend on your goals.

I hope it helps