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Hello, After running R CMD check on my package I received the following error on package dependencies: * using log directory 'C:/z-zBackup/Nuvera Bio on Iatros01/Development/RPackages/nvNormalize/nvNormalize.Rcheck' * using R version 2.9.1 (2009-06-26) * using session charset: ISO8859-1 * checking for file 'nvNormalize/DESCRIPTION' ... OK * checking extension type ... Package * this is package 'nvNormalize' version '1...

...command but that did not work either. The S Programming book mentions that a library Rdll.lib needs to be built from source, but I am not sure if this is still the recommended route. I am using Microsoft Visual C++ Toolkit in Windows XP Pro. Thank you for any advice. Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com <http://www.nuverabio.com/> [[alternative HTML version deleted]]

Hello, Could someone recommend a good book on regular expressions with focus on applications/use as it might relate to R. I remember there was a mention of such a reference book recently, but I could not locate that message on the archive. Thanks. -Christos Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com <http://www.nuverabio.com/> [[alternative HTML version deleted]]

...;- get(x); length(y)}) } > my.length(xx) xx 2 > my.length(xx$a) Error in get(x, envir, mode, inherits) : variable "xx$a" was not found > my.length(xx$a, xx$b) Error in get(x, envir, mode, inherits) : variable "xx$a" was not found Thank you. Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com

...the File menu on the Windows R Console to allow attaching workspaces, e.g. -------------------- Attach Workspace... Load Workspace... Save Workspace... -------------------- Is this something that could make the wish list for future R Console features? Thanks. -Christos Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com <http://www.nuverabio.com/>

...g the value of the inner paste to a variable and then use it inside the expression but that did not work either: ll.txt <- paste(ll, collapse="+/-") text(x=9, y=2, pos=2, expression(paste(X[min], "=", ll.txt))) Any help is much appreciated. Thanks. Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com

...<- cbind(xx, matrix(rep(0, 3*length(xx)), ncol=3)) w[ xx >= x[1,1] & xx <= x[10,1], 2 ] <- x[,2] w[ xx >= y[1,1] & xx <= y[10,1], 3 ] <- y[,2] w[ xx >= z[1,1] & xx <= z[10,1], 4 ] <- z[,2] w I appreciate any pointers. Thanks. Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com

Dear altogether, I want to blank the lower (or upper) part of a correlation matrix as it is done by dist() example: ( d <- cor(matrix(runif(12),nrow=4)) ) If I do the following d[lower.tri(d)] <- "" of course everything is changed to character - that's not what should be. Additionally, it does not work to assign "0" or anything else. The same is true for

Hi everyone, Can anyone give me more details about the 'lp', 'risk', 'terms', and 'expected' options from the predict.coxph function? I actually found that risk is obtained from exp(lp). I can't find information on 'expected' type however. Is anybody can expand the information on this function? Thank you in advance, I will appreciate it.

...ace. Is there a way this can be done with .C? I suspect it will use in some way the "vector of pointers to row vectors" concept, but I am not familiar enough in C yet to figure it out. Any hints on how in can be done with .Call if easier? Thank you. -Christos Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com <http://www.nuverabio.com/>

...ages 'citation(pkgname)'. Loading required package: qcc Error : package 'qcc' does not have a name space Error: package/namespace load failed for 'nvQC' Execution halted It looks like this package has a loading problem: see the messages for details. Christos Hatzis, Ph.D. Nuvera Biosciences, Inc. 400 West Cummings Park Suite 5350 Woburn, MA 01801 Tel: 781-938-3830 www.nuverabio.com <http://www.nuverabio.com/>

Hi all, This information must be out there, but I can't seem to find it. What I want to do is to store functions I've created (as .R files or in whatever form) and then load them when I need them (or on startup) so that I can access without cluttering my program with the function code. This seems like it should be easy, but.... Thanks! Jeff

Hi - I'm trying to append simple density histograms of a continuous variable to the leaves of an rpart tree. The splits in the tree are all levels of a factor and I'm hoping to make the histograms out of the subsets of the dataframe corresponding to the splits and for them to be attached to the appropriate leaf of the final tree. Any help would be much appreciated, thanks, Jon Zelner

Hello all I would like to visualize the hazard ratios of a cox proportional hazards model. I have seen some good examples in the New England Journal of Medicine: http://content.nejm.org/cgi/content/short/353/26/2747/F3 http://content.nejm.org/cgi/content/short/350/26/2654/F2 (I hope these are open access, but I am not sure) And something similar in the book 'R Graphics' by Paul

Hi list, I want to use the p-value from the survdiff function (package survival) to reuse within a function in a Kaplan-Meier plot. The p-value is somehow not a component of the value list ?! Thanks in advance -- A. Goralczyk G?ttingen, Ger.

I think this is an easy question, but I would be grateful for any advice on how to implement this in R. I simply have a response variable (y) that I am trying to predict with one explanatory variable (x) but the shape of the scatter plot is distinctly bilinear. It would be best described by two straight lines. Is there a way of fitting a linear model to give me a bilinear fit and (more

Hello my problem is the following: I have a matrix A and a vector B which contains as many rows as A. I need to build a matrix C which contains B[i]-times the row A[i,] and this for each line of A. if for example A is [1] [2] [1] 8 9.4 [2] 4.2 1.1 and B is (3,1). Then C will be: [1] [2] [1] 8 9.4 [2] 8 9.4 [3] 8 9.4 [4] 4.2 1.1 I have some

Dear R-users, I am checking the proportional hazard assumption of a cox model for a given covariate, let say Z1, after adjusting for other relavent covariates in the model. To this end, I fitted cox model stratified on the discrete values of Z1 and try to get beslow estimator for the baseline cumulative hazard function (H(t)) in each stratum. As far as i know, if the proportionality assumption

I'm a relative R novice, and sometimes the simple things trip me up. Suppose I have a <- c("apple", "pear") and I want a logical vector of whether each of these strings contains "ear" (in this case, F T). What is the idiom? Quizzically, Mark Lindeman

Dear r-helpers, Could you please tell me what's missing: rbind(paste('txt.est',1:24, sep = '')) txt.est1, ... txt.est24 are vectors that I wish to rbind. _____________________________ Professor Michael Kubovy University of Virginia Department of Psychology USPS: P.O.Box 400400 Charlottesville, VA 22904-4400 Parcels: Room 102 Gilmer Hall McCormick Road