search for: jerosch

...he color key should also include a numerical scale, so that the colors can be cross-referenced with image intensity values. I see that levelplot has a facility for color keys, but with image it seems less straightforward, i.e. generating a color key is not an option in image(). Thank you! Michael Jerosch-Herold

...r medicine literature. Does any reader of these messages know of a R function/package that offers this functionality? Also I noticed that in some contexts you can define a "circular" attribute for your data. Are there plot routines for such "circular" data? thank you! Michael Jerosch-Herold

...the functions coef, corMatrix, and intialize for any of the pre-defined correlation structures, and use this as a template to define a new correlation structure. So how do I see e.g. the code for the method initialize for the correlation structure corExp or corARMA? thank you in advance! Michael Jerosch-Herold PS: Oh, and if somebody could still send me example code for a user defined correlation structure I would much appreciate it, as my previous requests for help have not yielded any response.

...ach record/case in the columns. Again, I suspect that I am using "record" in a different sense then meant by the above warning message. Based on this warning, is "record type 7" discarded when the data are read in? Thank you in advance for shedding some light on this! Michael Jerosch-Herold

...generic function) to find in the meta-data must be a single string (got a character vector of length 2) In addition: Warning message: the condition has length > 1 and only the first element will be used in: if (!is.na(match(Class, .BasicClasses))) return(newBasic(Class, Thank you! Michael Jerosch-Herold

Dear R-Users, Is it possible to get the covariance matrix from an lme model that did not converge ? I am doing a simulation which entails fitting linear mixed models, using a "for loop". Within each loop, i generate a new data set and analyze it using a mixed model. The loop stops When the "lme function" does not converge for a simulated dataset. I want to

...r mixed effects) and do not have any similar problems. Also I can "manually" perform the analysis with "lm" for the data subsets corresponding to each of the 3 levels of the grouping factor (gf is the grouping variable), without any problem. thanks in advance for help! Michael Jerosch-Herold

...mplate, but I have no idea how I would define the methods (coef, corMatrix, and initialize) in this context. I did a search on Google and in the R-help archives, but have not found much in terms of hints and specific examples for user defined correlation structures. Thank you in advance! Michael Jerosch-Herold

...reported, but I have just now re-subscribed to this mailing list and could not find anything in the Newcastle R archives. Could somebody be kind enough to resend a solution, if this problem was already raised here in this forum (but not yet fixed in the Windows binaries...). thank you! Michael Jerosch-Herold The information transmitted in this electronic communica...{{dropped:11}}

...om? By the way, it is not defined in the R-code that accompanies chapter one of Bate's book either. Similar observations appear to apply to the function profile(). Are these functions that will appear in a new version of the lme4 library, that has not yet been released? Thank you! Michael Jerosch-Herold Brigham & Women's Hospital The information in this e-mail is intended only for the ...{{dropped:11}}

Dear R user, I have a question on using R to analyze data with repeated measurements. I have 2 species with several strains (12) per species, each of which has been measured twice with for a given trait. No particular covariance, just two measures. Now I want to analyze the data with an ANOVA (aov) considering these repeated measures to get the MSq and SSq for the species and strain level. I

Hello Experts, how do I reformat a data frame in the way described below: df1: ID desc resist thick temp 1 4711 100 5 20 2 4712 101 4 21 3 4711 99 3 19 4 4712 98 7 22 TO df2: id desc Param Value 1 4711 resist 100 1 4711 Thick 5 1 4711 temp 20 2 4712 resist 101 2 4712 Thick 4 2 4712 temp 21 3

...at.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > > http://www.R-project.org/posting-guide.html > > > > > > > > ------------------------------ > > Message: 89 > Date: Thu, 26 Aug 2004 17:55:17 -0700 > From: "Michael Jerosch-Herold" <jeroschh at ohsu.edu> > Subject: [R] read.spss warning: unrecognized record type?? > To: r-help at stat.math.ethz.ch > Message-ID: <s12e2412.032 at ohsu.edu> > Content-Type: text/plain; charset=us-ascii > > When using read.spss (library: 'foreign'...