Good afternoon
Has anyone tried using Dr. Elith's BRT script? I cannot seem to run
gbm.step from the installed gbm package. Is it something external to gbm?
When I run the script itself
<- gbm.step(data=model.data,
gbm.x = colx:coly,
gbm.y = colz,
family = "bernoulli",
tree.complexity = 5,
learning.rate = 0.01,
bag.fraction = 0.5)
... I keep encountering the same error:
ERROR:
unexpected ')' in "bag.fraction = 0.5)"
I've tried all sorts of variations (such as)
sep22BRT.lr01 <- gbm{data=sep22BRT,
gbm.x = sep22BRT[,3:42],
gbm.y = sep22BRT[,1],
family = "bernoulli",
tree.complexity = 5,
learning.rate = 0.01,
bag.fraction = 0.5}
and cannot find the problem.
Is there a glaring error that I am overlooking?
Darin Brooks
Geomatics/GIS/Remote Sensing Coordinator
Kim Forest Management Ltd. Cranbrook Office
Cranbrook, BC
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