Hello to everybody:

Im triying to develop a GAM model using Grasper. However, I cant obtain 
any result.

Im obtaining always the same result:

Error in "[.data.frame"(thindata, , cols) :
        invalid subscript type

when I use grasp.cormat

or 

Error in "[.data.frame"(XXX, , c(1, sX)) : 
        invalid subscript type

when I use grasp.model

I think that my response variable have been imported in a correct way

Id   Presence
1    0
2    0
3    1
4    1
.    .
.    .

Anybody can help me?

-- 

David Nogués Bravo

Functional Ecology and Biodiversity Department
Pyrenean Institute of Ecology
Spanish Research Council

Av. Montañana 1005
Zaragoza - CP 50059
976716030 - 976716019 (fax)


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