search for: nihil

Full_Name: John Maindonald Version: R-2.8.1 OS: MacOS X 10.5.6 Submission from: (NULL) (203.173.3.75) The following code demonstrates an annoyance with plot.lm(): library(DAAGxtras) x11(width=3.75, height=4) nihills.lm <- lm(log(time) ~ log(dist) + log(climb), data = nihills) plot(nihills.lm, which=5) OR try the following xy <- data.frame(x=c(3,1:5), y=c(-2, 1:5)) plot(lm(y ~ x, data=xy), which=5) The "Cook's distance" text overplots the label for the point with the smallest residual....

Can anyone help explain to me why the two codes below have different result? I thought I can use log(time)~. to replace log(time)~dist+climb+timef.I am using CVlm from DAAG package. I think nihills is preloaded with the package. Thanks in advance. > CVlm(df=nihills, form.lm=formula(log(time)~.),plotit="Observed",m=2)Analysis of Variance Table Response: log(time) Df Sum Sq Mean Sq F value Pr(>F) dist 1 6.34 6.34 384.31 4.6e-14 ***climb 1 0.12...

The following code demonstrates an annoyance with plot.lm(): library(DAAGxtras) x11(width=3.75, height=4) nihills.lm <- lm(log(time) ~ log(dist) + log(climb), data = nihills) plot(nihills.lm, which=5) OR try the following xy <- data.frame(x=c(3,1:5), y=c(-2, 1:5)) plot(lm(y ~ x, data=xy), which=5) The "Cook's distance" text overplots the label for the point with the smallest residual....

...and probably also be mentioned in some *.Rd >> files. KH> Again, I am not entirely convinced yet. you are right, me neither anymore.. We should discuss this some more KH> Why does adding two empty objects give something non-NULL? To me, KH> this seems to violate `nihil nihilo fit' (the ``no-arbitrage KH> condition''). I think the paradigm is NULL := list of length 0 + is sometimes coerced to vector of length 0 ~~~~~~~~~ real(0) := numeric(0) = numeric vector of length 0 The real point of discussion is: --------------------...

...e.mail: evan.cooch at cornell.edu Department of Natural Resources voice: 607-255-1368 Fernow Hall - Cornell University FAX: 607-255-0349 Ithaca, NY 14853 http://canuck.dnr.cornell.edu ---------------------------------------------------------------------- Nihilism is best done by professionals. - Iggy Pop

I have a mix of CentOS 5, 6, and now 7 servers at work. There are enough of them now that it is starting to make sense for them to get updates from an internal source. I've seen RHN Satellite in years past. It looks like it may be a way to allow Windows admins here (familiar with WSUS) to update Linux boxes. A local repo might be easier to set up, but (as with Spacewalk) it seems like