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I'm pleased to announce that my employer, Becton Dickinson, has an open position for software implementation in the Matlab and S languages. If interested, send a cover letter and resume (or CV) to Dr. Richard Moore at richard_moore at bd.com. If you have questions, contact myself (at jim_garrett at bd.com) or Dr. Moore. Below find a position d...

...designated recipient, you may not review, use, copy or distribute this message. If you receive this in error, please notify the sender by reply e-mail and delete this message. Thank you. ******************************************************************* Corporate Headquarters Mailing Address: BD (Becton, Dickinson and Company) 1 Becton Drive Franklin Lakes, NJ 07417 U.S.A.

...t I can reproduce the latter sequence, but not the first sequence. As a workaround, I guess I can call set.seed prior to generating the first sequence. But it puzzles me why capturing the random seed appears not to be sufficient. Am I overlooking something? Thanks for any guidance. Jim Garrett Becton Dickinson Diagnostic Systems Baltimore, Maryland, 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 "bod...

...cipient, you may not review, use, copy or distribute this message. If you received this in error, please notify the sender by reply e-mail and delete this message. Thank you. ******************************************************************* Corporate Headquarters Mailing Address: BD (Becton, Dickinson and Company) 1 Becton Drive Franklin Lakes, NJ 07417 U.S.A. *******************************************************************

...axis.POSIXct(1, test.dat$man.date, "%m %d, %Y") creates a tick mark and date label in the desired format, but only at Jan. 1, 2001. In other words, It controls what the label looks like, but not the number and spacing of labeled tick marks. Any ideas would be appreciated! Jim Garrett Becton Dickinson Diagnostic Systems Baltimore, Maryland, 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 "bod...

...ly sure both these operations are better performed by plyr. * a new cast syntax which allows you to reshape based on functions of variables (based on the same underlying syntax as plyr): * better development practices like namespaces and tests. This work has been generously supported by BD (Becton Dickinson). -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...ased on the same underlying syntax as plyr): * better development practices like namespaces and tests. Initial benchmarking has shown `melt` to be up to 10x faster, pure reshaping `cast` up to 100x faster, and aggregating `cast()` up to 10x faster. This work has been generously supported by BD (Becton Dickinson). Version 1.1 ----------- * `melt.data.frame` no longer turns characters into factors * All melt methods gain a `na.rm` and `value.name` arguments - these previously were only possessed by `melt.data.frame` (Fixes #5) -- Assistant Professor / Dobelman Family Junior Chair Department...

...ptimizing data-dependent functions (in my case a penalized likelihood function) is more straightforward in R than in S. I'm very excited and enthusiastic about this. Many thanks to all those who have made this possible! Thanks very much for any information, Jim Garrett jim_garrett at bd.com Becton Dickinson Baltimore, Maryland, 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 su...

...#39;d like to resize the text printed on the diagonals to better display the names (unless anyone can suggest another approach - creative use of varnames). I've looked at the code, R-Help, ?splom and the Trellis User's Guide to no avail. Any suggestions? Thanks in advance, Max Kuhn, Ph.D. Becton Dickinson Diagnostic Systems ----------------------------------------- This message is intended only for the designated recipient(s...{{dropped}}

...ly sure both these operations are better performed by plyr. * a new cast syntax which allows you to reshape based on functions of variables (based on the same underlying syntax as plyr): * better development practices like namespaces and tests. This work has been generously supported by BD (Becton Dickinson). -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...ased on the same underlying syntax as plyr): * better development practices like namespaces and tests. Initial benchmarking has shown `melt` to be up to 10x faster, pure reshaping `cast` up to 100x faster, and aggregating `cast()` up to 10x faster. This work has been generously supported by BD (Becton Dickinson). Version 1.1 ----------- * `melt.data.frame` no longer turns characters into factors * All melt methods gain a `na.rm` and `value.name` arguments - these previously were only possessed by `melt.data.frame` (Fixes #5) -- Assistant Professor / Dobelman Family Junior Chair Department...

...<- function(i) Sys.sleep(0.1) system.time(llply(x, wait)) # user system elapsed # 0.007 0.005 2.005 library(doMC) registerDoMC(2) system.time(llply(x, wait, .parallel = TRUE)) # user system elapsed # 0.020 0.011 1.038 This work has been generously supported by BD (Becton Dickinson). MINOR CHANGES * a*ply and m*ply gain an .expand argument that controls whether data frames produce a single output dimension (one element for each row), or an output dimension for each variable. * new vaggregate (vector aggregate) function, which is equivalent to tapply, but mu...

...<- function(i) Sys.sleep(0.1) system.time(llply(x, wait)) # user system elapsed # 0.007 0.005 2.005 library(doMC) registerDoMC(2) system.time(llply(x, wait, .parallel = TRUE)) # user system elapsed # 0.020 0.011 1.038 This work has been generously supported by BD (Becton Dickinson). MINOR CHANGES * a*ply and m*ply gain an .expand argument that controls whether data frames produce a single output dimension (one element for each row), or an output dimension for each variable. * new vaggregate (vector aggregate) function, which is equivalent to tapply, but mu...

..., example.spline) # ...and optimize. For a higher-dimensional problem, use "optim" # rather than "optimize". closest.x <- optimize(MyLoss, interval = c(-1, 1))$minimum lines(c(X1[1], closest.x), c(X1[2], predict(example.spline, closest.x)$y)) Good luck! -Jim Garrett Becton Dickinson Diagnostic Systems Baltimore, Maryland, USA ********************************************************************** This message is intended only for the designated recipient(s). ... [[dropped]]

...Incidentally, I can't check documentation for R 1.3.1 because, due to my company's slow and extremely conservative response to the Nimda worm, I can't access the web (I now realize how much I use it!). Apologies in advance if the latest R version has already handled this. Jim Garrett Becton Dickinson Baltimore, Maryland, 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 su...

...op is completed, which is when I no longer need it. If something causes the screen to refresh, such as swapping to another application and back, the information is printed. However, is there any kind of programming command I can use that will force a printout when I want it? Thanks, Jim Garrett Becton Dickinson Diagnostic Systems Baltimore, Maryland, 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 "bod...

...ique I have in mind is to use simulated annealing to find the model optimizing BIC or AIC. I've got the SA aspect of this covered, and my last obstacle is getting a working loss function. Any comments or questions regarding this overall goal are also welcomed. Thanks in advance, Jim Garrett Becton Dickinson Diagnostic Systems Baltimore, Maryland, USA __________________________________________________ Find the one for you at Yahoo! Personals -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-F...

Dear R-Help, I'm using R version 1.6.0 on a Windows computer. I am trying to create a function that, among other things, constructs strings that refer to Windows files, e.g., I might want to construct a string like 'c:\work\part1.txt'. I have found that the following does not work. > paste("c:", "\", "work", "\", "part1.txt",

Take a look at package mgcv. Hope this helps. --Matt -----Original Message----- From: RenE J.V. Bertin [mailto:rjvbertin at despammed.com] Sent: Thursday, February 27, 2003 1:39 PM To: r-help at stat.math.ethz.ch Subject: [R] multidimensional function fitting Hello, I have been looking around for how to perform a multidimensional, arbitrary function fit (in any case non-linear; more below),

Hi I am looking to perform a discrete mean-variance optimisation, specifically to maximise the ratio of portfolio mean over portfolio standard deviation for a portfolio of several hundred stocks through discrete position size holdings in each stock, where all position sizes must be elements of a small finite set of integer amounts which include zero. I don't think any of the standard R