[R] Problem with effects package

Lars Bishop lars52r at gmail.com
Sat Jul 30 21:01:26 CEST 2011

Dear List,

Several times I use this package I get the error message shown below.
When I work out simple examples, it turns out to be fine, but when
working with real and moderate size data sets I always get the same

Do you know what could be the cause of the problem?

Error in apply(mod.matrix[, components], 1, prod) :
  subscript out of bounds
Error in plot(effect("myvariable", glm.sev1)) :
  error in evaluating the argument 'x' in selecting a method for
function 'plot'


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