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Hi, does anybody know of a nice test to detect trend turning points in time series? Possibly with reference? Thanks, joerg

Hi including the \samp tag in Rd files gives me errors creating the tex-documentation. How can I escape literal sequences in Rd files? \preformatted also does not seem to work. joerg

Hi, library(RMySQL) works, but connecting to the database results in Warning message: RS-DBI driver warning: (MySQL mismatch between compiled version 3.23.49 and runtime version 3.23.51) Any idea? Thanks, joerg

Concerning my former message: I just found out that irrespective of the fetch size, I get always half of the fetch size good results/rows and the other half is corrupted. Strange, isn't?

Hi, I have a levelplot with one panel. I just can't find out how I can manipulate the size of the axis lables. e.g. scales.cex doesn't work, the usual par-parameters either. Any hint? joerg

Hi, why is it that in tables for the F distribution it is for example F0.95[6,28]=2.45 or F0.95[10,20]=2.35 but > pf(6,28,2.45) [1] 0.8854934 > pf(10,20...

Hi, when I fit a linear model as lm(o ~ y + s - 1, contrasts=list(s=("contr.sum")),na.action=na.exclude) should then the effects of factor s sum up to zero? I my case they don't. Where...

Hi, concerning my earlier mail, maybe someone has noted from the variable names that I try to analyse mircoarrary experiments. Does anybody know of a R-implementation of the two-step mixed-model normalization procedure proposed by Wolfinger et al...

Hi, I have a linear mixed-effects model object and want to extract the 95% confidence intervals for the fixed and random effects, respectively. I found the function intervals() for confidence intervals for the fixed effects but no corresponding function...

Hi, I am trying to create a R-package. When I load my R source files using source() for debugging reasons everthing works fine and all function also do want they are supposed to do. However, when I run 'R...

Hi, I fitted a linear model: fit <- lm(y ~ a * b + c - 1 , na.action='na.omit') Now I want to extract only the a * b effects with confidence intervals. Of course, I can just add the coefficients by hand...

Hi, in a 2-way linear model with missing data the normal equations can sometimes be separated in 2 or more independent sets of equations brought about by the nature of the missing data. As far as I know this...

Hi, I use the ROracle interface in the R 64bit version. When I fetch a large number of rows from the database I get alternating 250 rows of what I want to see and than 250 rows junk and so...

Hi, I fitted a mixed linear model y = a + b + a*b + c + error, with c being the random factor: lmefit <- lme(y ~ a * b - 1 , random = ~ 1 | c, na.action='na.omit') Is there a way to omit some...

Hi, I am trying to fit a simple two-way fixed effect linear model (o ~ y + s - 1). However, my problem is large (length(o)=79333). I am already using slm.fit with a dense design matrix (ddm), but still...

Hi, ok, I know I should be using a later version than 1.7.1 (64 bit) but it's not in my power. So here is the problem: In my R script I declare a data.frame that consists...

Hi, trying to do a robudt regression of a two-way linear model, I keep getting the following error: > lqs(obs ~ y + s -1,method="lms", contrasts=list(s=("contr.sum"))) Error: lqs failed: all the samples were singular Robust...

Hi, I am running the 64bit version of R on a AIX RS6000 cluster on which is also running the ' SQL*Plus: Release 9.2.0.2.0' in the 'ORACLE-environment Version 64 bit AIX 5.1'. I have...

Hi, I wonder if there is a possibility to avoid that R sets one level of a factor equal zero in a model fit. More precisely, I want to fit a two-way unbalanced linear model: o ~ 0 + x + y...

Hi, I have the following linear mixed model: y(g,i,j,k,l)=u + L(g) + T(i) + D(j) + S(k) + (TS)(i,k) + error(g,i,j,k,l) where S(k) and the combined effect (TS...