search for: rex_bryan

I need some guidance on what is the best way to automate R I am aware of Rterm. First question: Is it true that R is not currently OLE accessible under Windows 2000? Second question: Is there an R command that echoes all R Console results to a run log system file? My first attempt to write a run log file is the example from the R Data Inport/Export documentation. > zz<-

To all I have some simple questions pertaining to weights used in regression. If the variability of the dependent variable (y) is a function of the magnitude of predictor variable (x), can the use of weights give an appropriate answer to the regression parameters and the std errors? Assume that y at x=1 and 6 has a standard deviation of 0.1 and at x=11 it is 0.4 Then according to a web page on

All Is there an R command to produce error bars around a plotted point. Crawley's book uses the command error.bar() but my version of R rejects it. Must be an S+ command(?). Thanks REX [[alternative HTML version deleted]]

Any idea why I can no longer plot two graphs on the same graphics device using the par(fig=) parameter? A simpler par(mfrow=c(1,2)) does work, showing the two plots side-by-side, but I would like the first to be larger. This simple example fails: x<-c(1,1,NA,2,2,NA,3,3) y<-c(2,4,NA,3,5,NA,1,4) par(fig=c(0,2/3,0,1)) plot(x,y) par(fig=c(2/3,1,0,1)) qqnorm(x) When plotted, the last

Is there an eloquent solution to re-assign vector element values? I have a vector which contains chemical data, some of them are "flagged" as non-detected values by their negative values. I can find the statistics on the positive values in vector "v" simply by typing: >v<- c(5,5,-3,-3,7,8,10) > v[(v>0)] [1] 5 5 7 8 10 I can also convert to positive values by

...42 26 Jan Qin Xin ( 9) | `->[R] how could I add legends 43 27 Jan Ko-Kang Kevin Wang ( 31) | `-> 44 N 26 Jan Remigijus Lapinskas ( 32) |->Re: [R] Plotting coloured his 45 N 26 Jan Damon Wischik (125) `-> 46 N 25 Jan Rex_Bryan at urscorp.com ( 10) [R] plotting primatives, ellipse 47 N 25 Jan Uwe Ligges ( 19) `-> As Martin Maechler explained some time ago, it also screws up the archives for a similar reason. Your cooperation will be greatly appreciated. best -- ~.~.~.~.~.~.~.~.~.~.~.~.~.~....

How do I post text-string dates along the x-axis instead of the excel_date position values? I would like to plot a time-series of chemical values changing with time The first column is the internal date from excel. This should be the x-axis position of a graph of the plotted data. The second column is a text-string of date. This should be what is posted (instead of the excel_date). The third

I'm just reading Modern Applied Statistics with S, 4th Ed., Venables and Ribley I'm typing in their examples in both R and S+. I need insight in the difference in the class() statement shown in Chap. 2. Example from book: > names(powers.of.pi) <- -2:2 > powers.of.pi -2 -1 0 1 2 0.1013212 0.3183099 1.0000000 3.1415927 9.8696044 >

This is not a criticism. I'm just curious. Is there an effort to keep R comparable to S+? Or are the two languages diverging? I am doing what probably legions have done before me, and legions will after me...using R on examples from text books written with S+ code. Most of the time everything appears to be equivalent. And then there are amazing divergences in commands. For instance: S:

...42 26 Jan Qin Xin ( 9) | `->[R] how could I add legends 43 27 Jan Ko-Kang Kevin Wang ( 31) | `-> 44 N 26 Jan Remigijus Lapinskas ( 32) |->Re: [R] Plotting coloured his 45 N 26 Jan Damon Wischik (125) `-> 46 N 25 Jan Rex_Bryan at urscorp.com ( 10) [R] plotting primatives, ellipse 47 N 25 Jan Uwe Ligges ( 19) `-> As Martin Maechler explained a month or so ago, it also screws up the archives for a similar reason. This is a request to anyone who starts a new subject to begin with a new message...

...also just look in the package's installation directory. If it's loaded you can do an ls(2) say if it loaded in position 2, to get all objects in the package. Reid -----Original Message----- From: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of rex_bryan at urscorp.com Sent: Tuesday, January 20, 2004 12:17 PM To: r-help at stat.math.ethz.ch Subject: [R] Re: Need help on how to list functions from a loaded package... To All How does one get a list of functions from a loaded package so that one can then get the appropriate help for each of the func...

To All How does one get a list of functions from a loaded package so that one can then get the appropriate help for each of the functions. Currently my method is based on a lot of trial-and-error. Here's an example of what I mean... >From this forum I learn that an interesting package called "multtest" exists on Bioconductor. I then use R Console's "Packages" --

All, I am using a sum of squared differences in the objective function of an optimization problem I am doing and I have managed to speed it up using the outer function versus the nested for loops, but my suspicion is that the calculation could be done even quicker. Please see the code below for a simple example. If anyone can point out a faster way I would appreciate it greatly. Thanks, Roger

Ronaldo Your mathematical question is of interest to me too. But I am particularly interested in a translation into American English of the pun attached to you email. Could you try to explain O Flamengo e o Bangu terminaram o jogo em 0 x 0. Quem fez o gol? A Volkswagen My rough translation into English is: Two soccer teams ended play 0 to 0. Who got the goal? A Volkswagen. I need all the