Re: [R] code optimisation problem

Rui Barradas ruipbarra...@sapo.pt writes: Hello, Package 'compiler' is good at optimizing for loops. Try the following. Or vectorize the function system.time(f1(x,10)) user system elapsed 5.010.005.00 system.time(f1.c(x,10)) user system elapsed 1.920.00

Re: [R] Help: is there a R Package for L1-regression (not regression with L1-penalty)

Chee Chen chee.c...@yahoo.com writes: Dear All, Is there a R package for L1-regression (meaning, optimize the sum of absolute deviations, NOT TO BE UNDERSTOOD as regression with L1-penalty) ? Yes. Any information will be appreciated. See

Re: [R] Question on callNextMethod

/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

Re: [R] summation coding

djbanana karl79264...@gmail.com writes: Hi, I think I solved it myself by writing loops. What I meant is: are there in-built functions in R that calculate the following: a1(b2+...+b190) + a2(b1+b3+...+b190) + ... Following Rainer's setup: x - data.frame( a = sample( 1:10, 4 ), b =

Re: [R] uniq -c

Sam Steingold s...@gnu.org writes: I need an analogue of uniq -c for a data frame. The count.rows() function is the R analogue. See http://orgmode.org/worg/org-contrib/babel/examples/Rpackage.html#sec-6-1 No need to install the package - just copy and paste the function into an R session.

Re: [R] Test for Random Points on a Sphere

-sig-geo might get more helpful responses once you can focus the question a bit more. HTH, Chuck Many thanks Lorenzo -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty

Re: [R] What makes R different from other programming languages?

-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San

Re: [R] looking for accessibility help (blind student)

: 440.249.4289 [[alternative HTML version deleted]] -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901

Re: [R] Poisson Ridge Regression

is rseek.org where 'poisson ridge regression' gives lots of hits. If you click on 'functions' there is a link to the 'glmnet' package, which is a solid engine for penalized poisson regression. HTH, Chuck -- Charles C. BerryDept of Family/Preventive Medicine cberry

Re: [R] trouble automating formula edits when log or * are present; update trouble

]][[2]][[3]] : subscript out of bounds pj -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901

Re: [R] Generate Dendrogram

did not follow the example. You used the wrong object in the call to plot() and it dispatched to plot.hclust rather than plot.dendrogram. Try plot( dend1, ... ) HTH, Chuck Br, Luffy -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu

Re: [R] how to cut files from any folder to another folder?

-folder-tp4577818p4577818.html Sent from the R help mailing list archive at Nabble.com. -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093

Re: [R] working with environments to ensure code quality for long R scripts

Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

Re: [R] Looking for the name of a certain kind of quantile plot

Dept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman

Re: [R] sqrt(-x) vs. -x^0.5

( as.list( quote(-1-4) ), as.list ) and (thereby) explain why the result of -1-4 isn't 3. HTH, Chuck [rest deleted] -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La

Re: [R] extracting the i-th row of a matrix in a list of lists

:2) ) HTH, Chuck or should I really stick with: lapply(lapply(x1, '[[', 3), function(x) x[2,]) ? Thank you very much, benilton -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http

Re: [R] Why does the order of terms in a formula translate into different models/ model matrices?

at Nabble.com. -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org

Re: [R] Need help interpreting the logit regression function

wrong or interpreting it wrong. Can some one please point me in the right direction.. -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093

Re: [R] Averaging within a range of values

from the R help mailing list archive at Nabble.com. -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901

Re: [R] Putting an index explicitly into function code --- a curiosity.

[[2L]], where) } seems to handle this case without breaking example(bquote). HTH, Chuck Duncan Murdoch -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry

Re: [R] qqnorm huge datasets

for points that do not overlap to be seen and small enough to slim down the number of plotted points. In the example above, 10233 vs 10. HTH, Chuck -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http

Re: [R] qqnorm huge datasets

points. In the example above, 10233 vs 10. HTH, Chuck -- Charles C. Berry                            Dept of Family/Preventive Medicine cberry at ucsd edu                          UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901

Re: [R] column permutation of sparse matrix

of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do

Re: [R] Multicollinearty in logistic regression models

-- Mohamed Lajnef,IE INSERM U955 eq 15# David Winsemius, MD West Hartford, CT -- Charles C. BerryDept of Family/Preventive Medicine cberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901

Re: [R] fundamental guide to use of numerical optimizers?

are just in the folklore. But if somebody has written them out, I would be glad to know. -- Charles C. BerryDept of Family/Preventive Medicine ccberry at ucsd edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093

Re: [R] k-folds cross validation with conditional logistic

UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ 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

Re: [R] Maximization Problem

Dept of Family/Preventive Medicine cbe...@tajo.ucsd.eduUC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE