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Does R, or will R, be integrating the changes to the Chambers/Lucent S language under their version 5.0? If not already, then when? John Thaden Little Rock, Arkansas, USA -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !)...

...ational.unibas.ch/cs/scicomp/software/pardiso www.enseeiht.fr/lima/apo/MUMPS/ and in these reviews ftp://ftp.numerical.rl.ac.uk/pub/reports/ghsNAGIR20051r1.pdf http://www.cise.ufl.edu/research/sparse/codes/ neither of which reviewed the R Matrix package, unfortunately. Thanks, - John Thaden, Ph.D., U. Arkansas for Med. Sci., Little Rock. Confidentiality Notice: This e-mail message, including any a...{{dropped}}

Hello, The code below is supposed to be a wrapper for matplot to do columnwise visible comparison of several matrices, but I'm doing something wrong because I can't access an argument called 'colnum'. I'd be most grateful for some insight. Thanks, John Thaden Little Rock, AR ################################ # mmatplot is a matplot wrapper to compare the same column of # several matrices. Arg y is either a list of matrices with # equal number of rows, or an array. The scalar n gives the # column of each matrix or array slab to plot. par values and # m...

...tion and handling of duplicated index pairs, I'm curious why the dgCMatrix class doesn't also add x values in those instances? I wonder also if others might benefit also by being able to choose how these instances are handled, i.e., whether they are summed, averaged or overwritten? -John Thaden, Ph.D. Research Assistant Professor of Geriatrics University of Arkansas for Medical Sciences Little Rock AR, USA Confidentiality Notice: This e-mail message, including any a...{{dropped}}

...tion and handling of duplicated index pairs, I'm curious why the dgCMatrix class doesn't also add x values in those instances? I wonder also if others might benefit also by being able to choose how these instances are handled, i.e., whether they are summed, averaged or overwritten? -John Thaden, Ph.D. Research Assistant Professor of Geriatrics University of Arkansas for Medical Sciences Little Rock AR, USA Confidentiality Notice: This e-mail message, including any a...{{dropped}}

...ts the value of k as ends are approached--is said not to be optimized (using this option does add further time to computations). Is there an alter- native that would be speedier, e.g., setting endrule = "keep" and then subsequently treating ends with R's smoothEnds() function? -John Thaden Little Rock, Arkansas USA Confidentiality Notice: This e-mail message, including any a...{{dropped}}

...recision, but it ## also strips away dimensions... Md <- as.double(Mi) dim(Md) class(Md) ## ...so I have to put them back. dim(Md) <- dim(Mi) dim(Md) class(Md) class(Md[1,1]) Here's my "tail wagging the dog" example: M[1,1] <- as.double(M[1,1]) class(M[2,2]) Thanks, -John Thaden Confidentiality Notice: This e-mail message, including any a...{{dropped}}

...g 'g' ## in the following): > order(1:10,decreasin = TRUE) ## Error in order(na.last, decreasing, ...) : ## argument lengths differ ## Isn't is standard practice to have R base functions ## accept truncated argument names as long as they are ## unambiguous? Thanks, John Thaden, Ph.D. Confidentiality Notice: This e-mail message, including any a...{{dropped}}

This shouldn't be hard, but it's just not coming to me: Given a vector, e.g., v <- c(20, 134, 45, 20, 24, 500, 20, 20, 20) how can I get the index of the last value in the vector having a value greater than n, in this case, greater than 20? I'm looking for an efficient function I can use on very large matrices, as the FUN argument in the apply() command. Confidentiality

R pattern-matching and replacement functions are vectorized: they can operate on vectors of targets. However, they can only use one pattern and replacement. Here is code to apply a different pattern and replacement for every target. My question: can it be done better? sub2 <- function(pattern, replacement, x) { len <- length(x) if (length(pattern) == 1) pattern <-

Hello all, How do I actually use the output of predict.lm(..., type="terms") to predict new term values from new response values? I'm a chromatographer trying to use R (2.15.1) for one of the most common calculations in that business: - Given several chromatographic peak areas measured for control samples containing a molecule at known (increasing) concentrations, first

...it". How does this sound to you? If a stepwise algorithm ranks possible cofactors--perhaps even assigns them an F value--can you use that ranking to make any comparisons among possible cofactors? What do the F values mean? ************************************************************ John J. Thaden, Ph.D., Instructor jjthaden at life.uams.edu Department of Geriatrics (501) 257-5583 University of Arkansas for Medical Sciences FAX: (501) 257-4822 mail & ship to: J. L. McClellan V.A. Medical Center Research-151 (Room GB103 or GC124) 4300 West 7th Street...

Hello, Could someone please explain the following warning while subsetting in the Matrix package? Thanks, John Thaden, PhD U. Arkansas for Med. Sci. Little Rock AR USA > # In the Matrix package... > library("Matrix") > # ...I had previously created a sparse matrix in triplet form: > str(x) Formal class 'dgTMatrix' [package "Matrix"] with 6 slots ..@ i : int [1:92363...

Hi, I just installed jEdit but have no clue, whether I can run my code a'la "ctrl-R" directly from jEdit script, or should source it from R command line, after saving it first in jEdit. thanks for any help, rob -- View this message in context: http://www.nabble.com/jEdit-for-R-tf4684065.html#a13384782 Sent from the R help mailing list archive at Nabble.com.

Hi R-experts, I have data from four conditions of an experiment. I tried to create four subsets of the data with read.table, for example, read.table("Experiment.csv",subset=(condition=="1")) . I found a similar post in the archive, but the answer to that post was no. Any new ideas about reading subsets of data with read.table? Thanks! Feng [[alternative HTML version

Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> wrote: > Martin Maechler <maechler at stat.math.ethz.ch> writes: [ snip... ] > > >From this logic, coercing to a matrix should coerce to character rather > > than integer/numeric codes. > > Hm. I'm not sure there really is much logic in this... Factors are > sometimes character-like, sometimes

There have been several constructive responses to John Sorkin's comment, but none of them are fully satisfactory. Of course, if you know the name of the function you are looking for, there are lots of ways to search — provided that everyone calls the function by a name that matches your search. If you think there might be a function, but you don't know the name, then you have