search for: uscrim

Hello R users, Sorry if this is a dumb question but I'm new to R under Windows (NT) and I can't access datasets from V&R's MASS library : > library(MASS) > attach(UScrime) Error: Object "UScrime" not found > ls() character(0) but I get all the functions...Have I missed something ? Any help would be appreciated. Thanks, Mathieu -- ---------------------------------------------------------------------- Mathieu Ros - 13 rue b?vi?re - 38000 GRENOBLE -...

...d mods$Cp is full of NaNs. Exactly the same file worked last year. What is more strange, if I type or paste the commands interactively, I get plausible Cp values in mods$Cp. It is only in BATCH that the thing goes stray. ---------- File demo10.R up to the error point --------- library(MASS) data(UScrime) UScrime[1:3,] attach(UScrime) completo <- lm(y ~ . , data=UScrime) summary(completo) library(leaps) X <- as.matrix(UScrime[,-16]) y <- UScrime[,16] mods <- leaps(x=X,y=y,method="Cp") postscript(file="demo10.eps", horizon...

I'm very new to R and I'm having trouble doing something that should be very simple (so I'm probably missing something quite obvious). When I run > lm(data$CRIME~data$INCOME+data$HOUSING) I get the correct coefficients. However, when I try to get anything else out of this I get a message about a missing argument, e.g.: >

...otors, muscle, newcomb, nlschools, nottem, npk, npr1, oats, OME, painters, petrol, phones, Pima.te, Pima.tr, Pima.tr2, quine, Rabbit, road, rock, rotifer, Rubber, ships, shoes, shrimp, shuttle, Sitka, Sitka89, Skye, snails, SP500, steam, stormer, survey, synth.te, synth.tr, topo, Traffic, UScereal, UScrime, VA, waders, whiteside, wtloss Error in library(MASS) : package/namespace load failed Error in driver$runcode(drobj, chunk, chunkopts) : Error in library(MASS) : package/namespace load failed Error in buildVignettes(dir = ".") : Error in driver$runcode(drobj, chunk, chunkopts) :...