similar to: Storing the linear model object

Good afternoon everybody, I'm quite new in functions optimization on R and, whereas I've read lot's of function descriptions, I'm not sure of the correct settings for function like "optimx" and "nlminb". I'd like to minimize my parameters and the loglikelihood result of the function. My parameters are a mean distance of dispersion and a proportion of

dear R experts: ?I am writing my own little newey-west standard error function, with heteroskedasticity and arbitrary x period autocorrelation corrections. ?including my function in this post here may help others searching for something similar. it is working quite well, except on occasion, it complains that Error in solve.default(crossprod(x.na.omitted, x.na.omitted)) : system is

thank you, achim. I will try chol2inv. sandwich is a very nice package, but let me make some short suggestions. I am not a good econometrician, so I do not know what prewhitening is, and the vignette did not explain it. "?coeftest" did not work after I loaded the library. automatic bandwidth selection can be a good thing, but is not always. as to my own little function, I like the

In the lm function the summary(lmobject) we have adjusted.r square and f statistics Do we have similar to the pls package and how to get it -- View this message in context: http://r.789695.n4.nabble.com/R-square-and-F-stats-in-PLS-tp3924484p3924484.html Sent from the R help mailing list archive at Nabble.com.

Hi, I am moving from Windows XP to Ubuntu 6.10 and installed R 2.4.0. When I run eg plot.lm (things work fine with plot.default - eg plot(rnorm(30),rnorm(30))) plot(lmobject) I can get the first plot and then this message: Hit <Return> to see next plot: Error in text.default(x, y, labels.id[ind],cex=cex, xpd=TRUE, : could not find any X11 fonts Check that the Font Path is correct

Hello useRs! I'm REALLY having trouble with readline when compiling R. 2.2 from source during ./configure. Here are the last lines of the configure log: checking readline/history.h usability... yes checking readline/history.h presence... yes checking for readline/history.h... yes checking readline/readline.h usability... yes checking readline/readline.h presence... yes checking

Hi useRs, I had posted about Adobe FLEX talking to R for rich visualisation. Reply from Jeffery Horner contained links to the revolution-computing.com webpage which had information pertaining to the Bay Users R group Meetup on Web Dashboards with R. I have a very specific project that I need to implement. I wish to use the graphics capabilities provided by Adobe FLEX to visualise outputs from R.

Hi, I am using the densCols to draw a high volume scatter plot. Instead of using the default local density, I would like to take log of the local density and then map them to the colors. I could not figure out how to do that. For example: plot(x,y,col=densCols(x,y,"log")) ? Any help would be appreciated! Jiaxiu [[alternative HTML version deleted]]

Hi, I am trying to install pdftools package on R 3.3.1 (Ubuntu 16.04), but the following issue occurs: ------------------------- ANTICONF ERROR --------------------------- Configuration failed because poppler-cpp was not found. Try installing: * deb: libpoppler-cpp-dev (Debian, Ubuntu, etc) * rpm: poppler-cpp-devel (Fedora, CentOS, RHEL) * csw: poppler_dev (Solaris) * brew: poppler (Mac OSX)

Dear R experts, I am posting this question on behalf of a Japanese R user who wants to know how to change the siginificant codes default. As you know, R's default significant codes are: Signif. codes: 0 `***' 0.001 `**' 0.01 `*' 0.05 `.' 0.1 ` ' 1 But he says that it is usual in economics to give codes such as `***' for 0.01, `**' for 0.05 and `*' for

On Wed, 29 Nov 2000, Matt Pocernich wrote: > I am having problem using the step function for a linear regression model. I've created an initial model containing only the intercept. Then using the step function, I've selected three variables to be considered for the model. > > > > x0.lm<- lm(MEDV~1, data = x) > > > > anova(x0.lm) > Analysis of

On Wed, 29 Nov 2000, Matt Pocernich wrote: > I am having problem using the step function for a linear regression model. I've created an initial model containing only the intercept. Then using the step function, I've selected three variables to be considered for the model. > > > > x0.lm<- lm(MEDV~1, data = x) > > > > anova(x0.lm) > Analysis of

I'm using R for Mac OS X Aqua GUI version 2.0 When using plot() with a linear model object, the plot of the LSR line does not appear. I get the residual plots, the Normal Q-Q plots and Cook's Differnce plot, just not the first plot with the fitted line. I just get an empty Quartz window, with no graph displayed. I've even tried to use plot.lm() and plotting a glm object, but I get the

Hi All, How do I get the sample size in lm? I know it is not reported by "summary". Thanks. jiong The email message (and any attachments) is for the sole...{{dropped:11}}

Hi Francois, Thanks for your quick response. Actually, I had already done that... sudo apt-get install libpoppler-cpp-dev Reading package lists... Done Building dependency tree Reading state information... Done libpoppler-cpp-dev is already the newest version (0.41.0-0ubuntu1.1). 0 upgraded, 0 newly installed, 0 to remove and 107 not upgraded. Therefore, I assume I have this installed. Best

I am having problem using the step function for a linear regression model. I've created an initial model containing only the intercept. Then using the step function, I've selected three variables to be considered for the model. > x0.lm<- lm(MEDV~1, data = x) > > anova(x0.lm) Analysis of Variance Table Response: MEDV Df Sum Sq Mean Sq F value Pr(>F)

Hi I need to a function that automatically fits a regression to data, using the stepAIC. I've ran the code manually and it works fine. However, when I run the function on the same data, the following error occurs: Problem in regimp(fullsim = simt, fullsim1 = simt1,..: Length of (weights) (variable 4) is 4271 != length of others (4278) I got the function to output the length of the dataset

Dear all, Has anyone written R code for partial Mantel Tests- as described for instance in Legtendre & Legendre (1998) ? In other words, in a community ecology analysis, I would like to calculate the correlation between two dissimilarity matrices, controlling for a third distance matrix representing geographical distances between sites. Thanks! Christophe Bouget Biodiversité et gestion des

Hi, The title says it all. One of my clients showed me a 120 GB hard drive that his daughter accidentally formatted, according to him. I booted the first CD I had at hand - a Slackware 11.0 install CD - and launched cdfdisk /dev/hda. cfdisk informed me that there was even no partition table. So much for reformatting. cfdisk only shows me 120 GB of free space. Any way to retrive data on this

Hi, do you know, a method to convert an decimal value (integer) to the corresponding hexadecimal value ? thinks for help. Romain -- Lorrilli?re Romain UMR 8079 Laboratoire Ecologie, Syst?matique et Evolution B?t. 362 Universit? Paris-Sud 91405 Orsay cedex France tel : 01 69 15 56 85 fax : 01 69 15 56 96 mobile : 06 81 70 90 70 email : romain.lorrilliere at ese.u-psud.fr