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...~KK-1), data=df1,na.action=na.omit) # obtain and plot the fitted values a1p <- as.vector(predict(a1,df1)) lines(ss,a1p,lty=1) ##################### END OF CODE ######################################3 -- ********************************************************************* | Michael Fugate Temp Phone: (505) 665-1817 | | Statistical Sciences Group, D-1 | | Los Alamos National Laboratory email: fugate at lanl.gov | | Los Alamos, NM 87545 | | Mail Stop: F600...

...of observations in each cell. The same call to xtabs() in R will produce the contigency table but the only entry in each cell is N. How can I get the same relative frequencies that crosstabs() gives? Thanks, mike -- ****************************************************************** | Michael Fugate Phone: (505) 667-0398 | | Los Alamos National Laboratory Fax: (505) 665-5220 | | Group: CCS-3, Mail Stop: B265 e-mail: fugate at lanl.gov | | Los Alamos, NM 87545 | ********************************************...

...) I use rpart() with the call (C) y.part <- rpart(pref~.,data=y,method="class",parms=list(split="gini")) the model can be fit using all the data in y, and no error messages. Thanks in advance. m ****************************************************************** | Michael Fugate Phone: (505) 667-0398 | | Los Alamos National Laboratory Fax: (505) 665-5220 | | Group: CCS-3, Mail Stop: B265 e-mail: fugate at lanl.gov | | Los Alamos, NM 87545 | ********************************************...

...size also result in this error message but values of nodesize less than 5 do not. I'm using R-1.5.0 on a Linux box and I installed the randomForest package during the week 13 May 2002. Thanks in advance. mike -- ****************************************************************** | Michael Fugate Phone: (505) 667-0398 | | Los Alamos National Laboratory Fax: (505) 665-5220 | | Group: CCS-3, Mail Stop: B265 e-mail: fugate at lanl.gov | | Los Alamos, NM 87545 | ********************************************...

Good Day, I'm using the knn function in the package class. With k set to 3, the function returns proportions of 1/3, 0.5, 0.6, 2/3, 3/4, and 1.0 for the test cases. I don't understand how with k set to 3 the proportions can be anything other than 1/3, 2/3, or 1.0 I've seen similar inconsistencies with k set to 5. R version 2.5.0 with redhat linux. Thanks in advance. Mike

Good Day, I fit a multivariate linear regression model with 3 dependent variables and several predictors using the lm function. I would like to use stepwise variable selection to produce a set of candidate models. However, when I pass the fitted lm object to step() I get the following error: Error from R: Error in drop1.mlm(fit, scope$drop, scale = scale, trace = trace, k = k, : no

...the randomForest package to perform a classification. If I supply weights to the optional classwt argument are proximity values computed as a weighted average? I understand that the forest will possibly change as a function of the particular weights I supply. Thanks in advance. Mike Michael Fugate Los Alamos National Laboratory Mail Stop MS-F600, Los Alamos, NM 87545 (505) 667-0398