[R] plotting regression line

Hello, I'm trying to plot an exponential regression line through my data (scatterplot with trend line), but can't find a way to do that. it is to be the best fit possible. -- View this message in context: http://www.nabble.com/plotting-regression-line-tp17837683p17837683.html Sent from the R hel

[R] Barplot with grouping x axis and count data

want to have clutch egg and treat all on the xaxis but not in separate bars but nested within eachother just like the table. Can someone tell me how to deal with this problem? thank you, Linda -- View this message in context: http://www.nabble.com/Barplot-with-grouping-x-axis-and-count-data

[R] permutation test for Cox proportional hazards regression model

p(NA,B); Srv <- Surv(Time, Event); for(j in 1:B){ LRtestx[j] <- cph(Srv~sample(x,length(x),replace=F))$stat[3]}; LRtest <- cph(Srv~x)$stat[3]; sum(LRtestx > LRtest)/B Many thanks Linda [[alternative HTML version deleted]] __ R-

[R] Multiple Regression with Correlation Matrix

Hello,   In SPSS, a multiple regression can be conducted by inputting the means, standard deviations, sample size, and correlation matrix without actually using the raw dataset. Is it possible to do the same in R?   Thanks in advance for your assistance.   Linda [[alternative HTML

[R] Ridge and PLS grouping property

similar they should be? Thanks -- Linda Garcia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html

[R] penalized package for ridge regression

Dear all, I am using "penalized" package for "Ridge" regression. I do not know how can I get regression coefficients using that package . Please help me. Thanks -- Linda Garcia [[alternative HTML version deleted]] _

[R] biclust package

thod=BCBimax(), minr=4, minc=4, number=10) res Thanks for your help -- Linda Garcia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

[R] Double cross validation and prediction error

?? Thanks in advance Linda Garcia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide

[R] Hat matrix and MSEP

? Thanks alot -- Linda Garcia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide

[R] Caret package and lasso

21293642 V77 V78 V79 V81 V84 V85 V86 V88 V91 V94 V95 V99V100 0. 0. 0. 0.04849013 0.04563922 0. 0. 0. 0. 0.06291593 0. 0. 0.0

[R] problem with installing clim.pact

Hi I tried to use install.packages('clim.pact'), but got following (whereas it was installed properly on my windows machine) > install.packages('clim.pact') Warning message: In install.packages("clim.pact") : package ‘clim.pact’ is not available > version _ platform x86_64-un

[R] Functions to plot geopotential heights

certain functions dedicated to produce similar plot for such weather variables. Thanks! Linda <>__ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.ht

[R] Offsets in bigglm

Is it possible to have offsets in a glm when using bigglm? _ [[elided Hotmail spam]] [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.c

[R] LD50 and SE in GLMM (lmer)

s.matrix...) part is about (chol does what?) and therefore I have no idea, how to use this code to get my LD50 SE (I would need the SE to be expressed in terms of x). Could anybody help me with this? And one more question: is it correct to use pnorm (where John Maindonald used exp(hat)/(1+exp

Re: [R] LD50 and SE in GLMM (lmer)

2] names(k) <- paste("p = ", format(p), ":", sep = "") pd <- -cbind(1, k)/b[2] SE <- sqrt(((pd %*% vcov(model4)[cf,cf]) * pd) %*% c(1, 1)) list(k, SE) } dose.p.glmm (model4, cf=1:2, p=0.5) With this, I don't even need the pnorm- probit transformatio

[R] Help with using the huxreg() function

= "nobs", R2 = "r.squared"), stars = c(* = 0.1, ** = 0.05, *** = 0.01)). I would really be grateful if you could help me with this. I don't know if this is the right way to ask for help, but at least I thought I could give it a try. Best regards, Linda Stefansson

[R] FW: Nested and/or crossed and 2 level random factor

Dear All, I have two quick questions about my study design. For 4 years, once every season, we destructively sampled larvae on bushes (the same bushes every time) and measured parasitism on these larvae. We had 10 bushes per location and two locations. We are interested in whether parasiti

[R] error when installing package after installing R-3.1.0 on windows

he folder permission and it doesn't have read-only set. Did anybody experienced the same or have suggestions what to check or fix?   Thanks for the help,   Linda [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https:

[R] Random Number Generators and Sample

I am trying to get documentation about the random number generator used in "sample". The help for sample does not mention it. Can anyone point me in the right direction. Thanks [[alternative HTML version deleted]] __ R-help@r-project.org ma

[R] combined odds ratio

Dear all, I am looking for an R function which does stepwise selection cox model in r (delta chisq likelihood ratio test) similar to the stepwise, pe (0.05) lr: stcox in STATA. I am very thankful for any reply. Regards, Linda [[alternative HTML version deleted

[R] stepwise selection cox model

Sorry, I have wrote a wrong subject in the first email! Regards, Linda -- Forwarded message -- From: linda Porz Date: 2011/5/25 Subject: combined odds ratio To: r-help@r-project.org Cc: r-help-requ...@stat.math.ethz.ch Dear all, I am looking for an R function which does

Re: [R] stepwise selection cox model

lts? Many thanks, Linda 2011/5/25 Bert Gunter > See the Vignette in the glmnet package for one alternative approach to > variable selection. Of course, you need to gain some background to > know what you're doing here. > > -- Bert > > On Wed, May 25, 2011 at 8:3

Re: [R] stepwise selection cox model

Sorry, my question was: Are these two functions (Stata and fastbw (rule="p") R function) should give the same results to the same data? Maybe I need to run these two functions on more than one datasets to answer myself. Many thanks, Linda 2011/5/25 David Winsemius > > On May

[R] median test

, 2, 1, 4, 3, 1, 1) > group2 <- c(3, 1, 3, 1, 4, 1, 1, 1, 7, 1, 1, 1, 1, 1, 2) > median.test(w1,group1) [1] 1 > median.test(group1,group2) Error in fisher.test(z < m, g) : 'x' and 'y' must have at least 2 levels I am very thankful in advance for any suggestion

Re: [R] median test

ome from a Cauchy or slash distribution, the Wilcoxon should be used."! What is this? Is there is any test in R for a Cauchy or slash distribution? Can I used the unpaired Wilcoxon, or I have a Cauchy distributed data? Many thanks, Linda 2010/5/27 Joshua Wiley > Hello Linda, > > The &

[R] AUC, C-index and p-value of Wilcoxon

Dear all, I am using the ROCR library to compute the AUC and also the Hmisc library to compute the C-index of a predictor and a group variable. The results of AUC and C-index are similar and give a value of about 0.57. The Wilcoxon p-value is <0.001! Why the AUC is showing small value and the p-va

[R] color palette from red to blue passing white

thanks! Linda [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self

[R] install ncdf package on a 64-bit machine

nnot access `/home/ljin/share/R-2.6.1/library/ncdf/libs/*': No such file or directory ERROR: compilation failed for package 'ncdf' ** Removing '/home/ljin/share/R-2.6.1/library/ncdf' I had no problem when I install the ncdf package on my 32bit linux machi

[R] silhouette plot for kmeans result

Dear All, Is there any existing code for plotting silhouette for kmeans clustering results? Many thanks! Linda [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do