Dear all,

i would like to perform rare events logistic regression with ASCII Grid
files.
For this purpose selected the *relogit* function from Zelig package.

I imported data into the R>

library(maptools)
landcover <- data.frame(readAsciiGrid("
http://www.geography.sav.sk/personal/pazur/data/ab.asc"))
temperature <- data.frame(readAsciiGrid("
http://www.geography.sav.sk/personal/pazur/data/tem.asc"))
precipitation <- data.frame(readAsciiGrid("
http://www.geography.sav.sk/personal/pazur/data/zr.asc"))

But it seems that this package (Zelig) cant handle spatial data. Is there
some straight way for transformation?

Thanks in advance,
Kind regards,

Robert Pazur

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