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3 results for “from:Peter Schmidtke”

grid on a wireframe plot
Peter.Schmidtke-stage at sanofi-aventis.com · Mar 20, 2007 · r-help

Hello, I want to do a surface plot with wireframe from the lattice package. As for now I use the following command : print(wireframe(m,main="% my title", colorkey=TRUE, col.regions=rainbow(100), drape=TRUE,aspect = c(1,1...

interacting variables in a formulae in R
Peter Schmidtke · Jul 15, 2009 · r-help

Dear R Mailing Subscribers, I just have a question of how R handles interacting variables in model creation using glm for instance. if I write : >> model=glm(solution~descriptor1+descriptor2+descriptor3,family=binomial(link="logit")) I should end up with...

fix sign of a coefficient in formula
Peter Schmidtke · Jan 20, 2011 · r-help

Dear R users & experts, I'd like to create a model using lm (or glm) under some constraints of how coefficients for each component could look like (sort of a range of coefficients that should be allowed). So let's...

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