search for: prodecur

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2005 Aug 08
2
AIC model selection
...I understand that this command will give the AIC value for specified models: AIC(object, ..., k = 2) with "..." meaning any other optional models for which I would like AIC values. But, how can I specify (in the place of "...") that I want R to perform an model selection prodecure based on Akaike's Information Criterion on a set of potential independent variables in a model such as: model.lm=lm(A~B+C+D+E+F+G) ? Thanks a million; Marty
2011 Dec 06
0
Bootstrapping
Hello, I am having some trouble setting up a bootstrapping prodecure. I create artificial data and would like to use these to bootstrap a t-test statistic from these. Especially I do not really get how boot uses the indices variable or i variable. Can anybody help out? Thanks!! b0 <- 1/2 # intercept as given b1 <- 1...