search for: whiteside

Dear List-members, Hopefully someone will help through my confusion: In order to get the same coefficients as we get from the following ## require (MASS) summary ( lm(Gas ~ Insul/Temp - 1, data = whiteside) ) ...................... we need to do the following (if we use model.matrix to specify the model) ## summary ( lm(Gas ~ model.matrix(~ Insul/Temp - 1) - 1, data = whiteside) ) ...................... That is, we need to take out "two intercepts." Is this "correct"? Shoul...

Hello everyone, Can anyone tell me how do I restore data in a data.frame provided by base R libraries (MASS) ? I uninstalled R then installed it again and I still see the new changes I made!!!??? (eg. whiteside$Temp=1 ==> 1 overwrote all the rows, I want the old values :( !! Please HELP! -- View this message in context: http://www.nabble.com/Restoring-a-UPDATES-on-a-data.frame-tp15512767p15512767.html Sent from the R help mailing list archive at Nabble.com.

...es in the global environment and then another example with a data.frame. The latter might be somewhat more complex, e.g., with several regressors and/or mixed categorical and numeric covariates to illustrate how regression and analysis of (co-)variance can be combined. I like to use MASS's whiteside data for this: data("whiteside", package = "MASS") m1 <- lm(Gas ~ Temp, data = whiteside) m2 <- lm(Gas ~ Insul + Temp, data = whiteside) m3 <- lm(Gas ~ Insul * Temp, data = whiteside) anova(m1, m2, m3) Moreover, some binary response data.frame with a few covariates mi...

I think this site is always failing. It has an embedded video. http://www.sportsnet.ca/basketball/nba/free-association-podcast-much-toronto-raptors-fear-miami-heats-dwayne-wade-hassan-whiteside-joe-johnson/ I tried looking at the output of strace firefox > fferrors.txt 2>&1 grep ENOENT fferrors.txt hope that helps Note: I also have ffmpeg with nux's repo installed On Mon, May 2, 2016 at 12:44 PM, Nux! <nux at li.nux.ro> wrote: > This consistently crashes it,...

R-helpers; I tried to get a superscripted 3 in the following xyplot example but failed: >data(whiteside) >xyplot(Gas ~ Temp | Insul, whiteside, panel = function(x, y, ...) { panel.xyplot(x, y, ...) panel.lmline(x, y, ...) }, xlab = "Average external temperature (deg. C)", ylab = paste(paste("Gas consumption (1000", expression(ft^3),")"), aspect = &quot...

...with a >> data.frame. >> >> The latter might be somewhat more complex, e.g., with several regressors >> and/or mixed categorical and numeric covariates to illustrate how >> regression and analysis of (co-)variance can be combined. I like to use >> MASS's whiteside data for this: >> >> data("whiteside", package = "MASS") >> m1 <- lm(Gas ~ Temp, data = whiteside) >> m2 <- lm(Gas ~ Insul + Temp, data = whiteside) >> m3 <- lm(Gas ~ Insul * Temp, data = whiteside) >> anova(m1, m2, m3) >> &gt...

...ment and then another >example with a data.frame. > >The latter might be somewhat more complex, e.g., with several >regressors and/or mixed categorical and numeric covariates to >illustrate how regression and analysis of (co-)variance can be >combined. I like to use MASS's whiteside data for this: > >data("whiteside", package = "MASS") >m1 <- lm(Gas ~ Temp, data = whiteside) >m2 <- lm(Gas ~ Insul + Temp, data = whiteside) >m3 <- lm(Gas ~ Insul * Temp, data = whiteside) >anova(m1, m2, m3) > >Moreover, some binary response dat...

Hi, How would one go about determining if the slope terms from an analysis of covariance model are different from eachother? Based on the example from MASS: library(MASS) # parallel slope model l.para <- lm(Temp ~ Gas + Insul, data=whiteside) # multiple slope model l.mult <- lm(Temp ~ Insul/Gas -1, data=whiteside) # compare nested models: anova(l.para, l.mult) Analysis of Variance Table Model 1: Temp ~ Gas + Insul Model 2: Temp ~ Insul/Gas - 1 Res.Df RSS Df Sum of Sq F Pr(>F) 1 53 52.045...

...ta.frame. >>> >>> The latter might be somewhat more complex, e.g., with several >>> regressors and/or mixed categorical and numeric covariates to >>> illustrate how regression and analysis of (co-)variance can be >>> combined. I like to use MASS's whiteside data for this: >>> >>> data("whiteside", package = "MASS") >>> m1 <- lm(Gas ~ Temp, data = whiteside) >>> m2 <- lm(Gas ~ Insul + Temp, data = whiteside) >>> m3 <- lm(Gas ~ Insul * Temp, data = whiteside) >>> anova(m1...

R folks, As an R novice, I struggle with the mystery of subsetting. Textbook and online examples of this seem quite straightforward yet I cannot get my mind around it. For practice, I'm using the code in MASS Ch. 6, "whiteside data" to analyze a different data set with similar variables and structure. Here is my data frame: ###subset one of three cases for the variable 'position' >data.b<-data.a[data.a$position=="inrow",] > print(data.b) position porosity x y 1 inro...

Page 140 of MASS uses the function xyplot. But I don't find it in R. Is there a package that I should load to use xyplot. Or there is a function with a different name in R that does the same thing as xyplot in S. xyplot(Gas ~ Temp | Insul, whiteside, panel = function(x, y, ...) { panel.xyplot(x, y, ...) panel.lmline(x, y, ...) }, xlab = "Average external temperature (deg. C)", ylab = "Gas consumption (1000 cubic feet)", aspect = "xy", strip = function(...) strip.default(..., style = 1))

Hi all, I have currently been using the book Modern Applied Statistics with S from Venables and Ripley. At chapter 6 on Linear Statistical models I wanted to produce the plot as shown by "Figure 6.1" using Whiteside's data. xyplot command seems not to work on my version of "R"(version 1.7.0) running on different environments (Win XP, Win 98 and Win 2000). I then used the scripts for "R" provided with the package MASS pasting the following lines into the R console: library(MASS) library...

...o so, looking at interaction between the covariate and the factor to make this determination. VR3 pp.149 - 154 has a very nice example of an ANOCOVA, ending with a discussion of this very operation. My question has to do with the issue of parametrization. When I use the example data set "whiteside", I get the same results that VR get (see p. 154) except I'm getting them *without* reparametrizing the model. (In fact, I get the same answers with the default parametrization and the alternative). Since I'm only interested in the interaction term, is it even necessary to change...

In "Modern Applied Statistics with S-Plus" 3rd ed., footnote on page 153 regarding a model lm(Gas~Insul/(Temp+I(Temp^2))-1,whiteside), I read "Notice that when the quadratic terms are present, first degree coefficients mean 'the slope of the curve at temperature zero', so a non-significant value does not mean that the linear term is not needed. Removing the non-significant linear term for the...

gday R gurus, I have a multivariate regression for which I want to constrain the coefficients to be > 0. Is this possible? I've check the doco and searched CRAN but can't find anything. thanks, John Strumila -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send

so i am having this question what should i do if the give data file (.txt) has 4 columns, but different lengths? how can i read them in R? any idea for the following problem? Gas consumption (1000 cubic feet) was measured before and after insulation was put into a house. We are interested in looking at the effect of insulation on gas consumption. The average outside temperature (degrees celcius)

Hi good people, I've got a bit of a weird issue. I'm using QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.19) And after some considerable time of not using it for 32bit installations I now find that it can no longer install some older 32 bit installations (e.g. https://phillw.net/isos/lubuntu/natty/ ) The CPU goes to 100% and then after a while it just stops (I'm using

FWIW, before all the examples are changed to data frame variants, I think there's fairly good reason to have at least _one_ example that does _not_ place variables in a data frame. The data argument in lm() is optional. And there is more than one way to manage data in a project. I personally don't much like lots of stray variables lurking about, but if those are the only variables out

On Fri, Oct 18, 2019 at 09:39:40PM +0100, Phill. Whiteside wrote: > Hi good people, > > I've got a bit of a weird issue. I'm using QEMU emulator version > 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.19) And after some considerable time of > not using it for 32bit installations I now find that it can no longer > install some older 32 bit i...

On 5/2/2016 1:13 PM, Robert Arkiletian wrote: > I think this site is always failing. It has an embedded video. > > http://www.sportsnet.ca/basketball/nba/free-association-podcast-much-toronto-raptors-fear-miami-heats-dwayne-wade-hassan-whiteside-joe-johnson/ that embedded video is Flash. -- john r pierce, recycling bits in santa cruz