[R] A question about corAR1 and grouping

Hello, I was under the impression that in a call to gls, if i specify gls(.., cor=AR1(form= ~ 1 | subject)) and suppose there are N subjects, then i would have obtained estimates for N Phi (s) (the AR1 coefficient) - but I only get 1 estimate. I then checked "Linear Mixed-Effects Models Using R

Re: [R] Returning to parent function

telemStats() should return to the prompt and the print in telemStats should not appear On Mon, Mar 16, 2015 at 4:02 PM, David Winsemius wrote: > > On Mar 16, 2015, at 3:08 PM, Saptarshi Guha wrote: > >> Hello, >> >> I would like a function X to return to the place that c

[R] Returning to parent function

Hello, I would like a function X to return to the place that called the function XParent that called this function X. Y calls XParent Y = function(){ XParent() print("hello") } XParent calls X XParent = function(){ X() print("H") } X returns to the point just after the call to XParen

[R] KDE routines for data that is aggregated

Hello, Couldn't think of a better subject line. Rather than a matrix like x,y ..,.. .,.. I have a matrix like x,y,n, ..,..,.., ..,..,.. and so on. Also, sum(n) is roughly few hundred million. The number of rows is <1MM Are they routines to fit a 2d kde estimate to data provided in this form? I

[R] rbinlist for data.table and specifying the column class

hello, This rbindlist(list(list(a=NA,b=NA),list(a=20,b=FALSE))) returns a b 1: NANA 2: TRUE FALSE as per the documentation ?rbindlist is there a way to specify the column class of 'a' to be numeric? In actual usage, i wont be able to re-order the 2nd list entry to be the firs

Re: [R] Parallel version of Map(rather, mapply)

't have to write two statements (a sequential > and a parallel statement) -- if a parallel backend is running, it will use > that, otherwise it'll execute in sequential mode. > > --j > > From: r-help-boun...@r-project.org [r-help-boun

[R] Parallel version of Map(rather, mapply)

Hello, I find Map to be nice interface to mapply. However Map calls mapply which in turn calls mapply via .Internal. Is there a parallel version of mapply (like mcapply) or do I need to write this myself? Regards Saptarshi [[alternative HTML version deleted]] ___

[R] Nulls being coerced : Bug or design?

Hello, Consider the following transcript > x=NULL > x$date=10 > x $date [1] 10 or > x=NULL > x[10]=10 > x [1] NA NA NA NA NA NA NA NA NA 10 Wouldn't one expect that x remain NULL despite the further additions (i.e the x$date, x[10]) etc? Is coercing appropriate here? Cheers Saptarshi

[R] Transferring R to another computer, R_HOME_DIR

Hello, I was looking at the R (installed on RHEL6) shell script and saw R_HOME_DIR=/usr/lib64/R. Nowhere (and I could have got it wrong) does it read in the environment value R_HOME_DIR. I have the need to rsync the entire folder below /usr/lib64/R to another computer into another directory locati

[R] Controlling print messages/warnings and error output in R package

Hello, If i were to embed R (in C), i could over ride ptr_R_ShowMessage = Re_ShowMessage; ptr_R_WriteConsoleEx =Re_WriteConsoleEx; where Re_ShowMessage,Re_WriteConsoleEx are my own functions. How would i do this in a package? I would like the flexibility of having my function be called /every-t

Re: [R] List of default packages (that come with R)

quot; "base" > boot "boot" "recommended" > ... > mgcv "mgcv" "recommended" > ... > tools "tools" "base" > utils "utils" "base" > > Bi

[R] List of default packages (that come with R)

Hello, Is there an R function that tells me the packages that come with R e.g. c("base","boot","methods","mgcv",...) Thank you Saptarshi [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/lis

Re: [R] Codetools Query (repost)

thanks much. Saptarshi __ 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-guide.html and provide commented, minimal, self-contained, reproducible code.

[R] Using bquote to create names a for a list

Hello, How would i use bquote to create names for a list. e.g. to create list(a=10) bquote(list(.(X)=10), list(X="a")) does not work. The best i could come up with is bquote({ a=list(10);names(a)=.(X); a}, list(X="a")) which is quite ugly. Is there an elegant way to solve this? Regards Sa

[R] (Re-posted as Plain Text ) Modelling a skew-normal distribution using glm/ mgcv

Hello, [ Sorry, I sent the last email as HTML, this time it's in plain text ] Suppose my variable,S, (time for something to start) is a skew-normal distribution [1]. Can glm and mgcv handle this type of distribution for the dependent variable? Regards Saptarshi [1] http://azzalini.stat.unipd.it/S

[R] Install 64 bit version of package on OS X

I'm trying to install a package on OS X (Snow Leopard) using the following command, but instead of respecting the arch directive it install i386. How can this be resolved? R --arch=x86_64 CMD INSTALL * installing to library ‘/Library/Frameworks/R.framework/Versions/2.15/Resources/library

[R] Repost: Expressions returned by GlobalEnv functions and package functions

Hello, (Sorry for the repost, i am resending in plain text) I have a function 'ewrap' (see below for definition). It takes 3 expressions and returns another expression e.g. map <- ewrap({ len <- length(r$addon) rhcollect(len,1) }) becomes: expression({ NULL result <- mapply(fu

[R] Expressions returned by a Package function

Hello, I have a function 'ewrap' (see below for definition). It takes 3 expressions and returns another expression e.g. map <- ewrap({ len <- length(r$addon) rhcollect(len,1) }) becomes: expression({ NULL result <- mapply(function(.index, k, r) { { len <- l

[R] Y-axis label on the right hand side in lattice?

Hello, Is there a way to add ylab on the right hand side also (in lattice)? Different from the left hand side? Cheers Saptarshi [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-h

[R] Changing axis labels depending on panel in lattice

Hello, I am lattice scatterplot that has 2 panels (could be a few more). Both panels have a y-axis label that is different on the left and right sides. However the right hand side axis labelling depends on which panel i'm in . (I am plotting two curves in one panel, the left y-axis has the scale

[R] Adding a modified top axis label using LatticeExtra and theEconomist theme

Hello, I have the following code asTheEconomist(bwplot(ver~quans,data=z,cex=0.5,subset=abs(quans)<1.1,scales=list(x=list(tick.num=20,cex=0.55,alternating=3)) ,xscale.components = xscale.components.CF ,main=list('FOOO"',cex=0.8))) The xscale.components displays the exponent of the

[R] Using substitute on a function parameter

Hello, I would like to write a function where substitute operates on the parameter, but ... > Expression = function(o,l) substitute(o, l) > Expression({x=.(FOO)}, list(FOO=2)) o How do i get substitute to work on the contents of o. Regards Saptarshi _

[R] On .. glibc detected home/sguha/lib64/R/bin/exec/R: realloc(): invalid next size: 0x000000000209e210 ***

Hello, I'm trying to use rjson to parse a JSON object. The object can be found here http://pastebin.com/np0s5hgM (you'll probably need to add quotes around the content) fromJSON returns the error glibc detected home/sguha/lib64/R/bin/exec/R: realloc(): invalid next size: 0x0209e210 **

[R] The bin/R file - hardcoded paths

Hello, I notice that e.g /home/sguha/lib64 is hard coded into the /bin/R file . I nstalled R as ./configure --prefix=$HOME ... What i need to do is ship the entire R distribution to remote nodes, and run R. These are shipped to ephemeral directories so I dont know the path ahead of time. R_HOME

[R] World plots and clipping regions

Hello, Given the following display library(maps) library(mapproj) m <- map('world',plot=FALSE) map('world',proj='mollweide',bg=bgcolor[2],col='white') map.grid(col=2,lim=c(-175,-175,-180,180),label=FALSE,lty=2) Is there a way to color the region outside the dotted red border? Thank you Saptars

Re: [R] Does RHIPE support R on Windows as the user desktop environment?

Hello, I should see how to mirror a google group (if indeed possible). There are few things stopping from having RHIPE work on the remote while the client sends queries from a Windows client. But as of now, it does not work. Regards Saptarshi On Fri, Mar 18, 2011 at 7:50 AM, XiaoboGu wrote:

Re: [R] Regex query (Apache logs)

(\\d+)\\s\"(.*?)\"\\s\"(.*?)\"\\s\"(.*?)\"$" > > regexpr(pat, test, perl=TRUE) > [1] 1 > attr(,"match.length") > [1] 436 > > 3. Consider a different approach, e.g. scan(textConnection(test), > what=character(0)) > > Hope this

[R] Regex query (Apache logs)

Hello R users, I have this regex see [1] for apache log lines. I tried using R to parse some data (only because I wanted to stay in R). A sample line is [2] (a) I saved the line in [1] into "~/tmp/a.txt" and [2] into "/tmp/a.txt" pat <- readLines("~/tmp/a.txt") test <- readLines("/tmp/a.txt") te

[R] unserialize form rawConnection possibe?

Hello, Consider this little function (not concerned about efficiency here) m=function(r) { a<-serialize(r,NULL); zz<-rawConnection(raw(0),"r+"); writeBin(length(a),zz); c(rawConnectionValue(zz),a)} a=m(10) p=rawConnection(a,"r+"); u=readBin(p,"int") unserialize(p) Error in unserialize(p) : unk

Re: [R] Using Rscript to read from a file

Dirk, thanks. On Thu, Oct 14, 2010 at 9:42 AM, Dirk Eddelbuettel wrote: > > On 14 October 2010 at 11:21, Dirk Eddelbuettel wrote: > | On 14 October 2010 at 08:49, Saptarshi Guha wrote: > | | Hello, > | | I have this script which will be invoked as > | | > | | Rscript a.r

Re: [R] Python's string translate in R?

Yes, thanks much. On Thu, Oct 14, 2010 at 9:36 AM, jim holtman wrote: > ?chartr > > Is this what you are looking for? > > On Thu, Oct 14, 2010 at 12:10 PM, Saptarshi Guha > wrote: >> Hello, >> >> Would one use gsub to perform pythons translate? >> &

[R] Python's string translate in R?

Hello, Would one use gsub to perform pythons translate? in python table = string.maketrans("abc","xyz") "abc".translate(table) "xyz" how does one do this in R? Thank you Saptarshi __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/lis

[R] Using Rscript to read from a file

Hello, I have this script which will be invoked as Rscript a.r < a.r a.r follows #!/usr/bin/Rscript --vanilla f=file("stdin") while(TRUE){ y=readLines(f,n=1,warn=TRUE) if(length(y)==0) break else print(y) } But it only reads one line from a.r How can I read line by line from standard inp

Re: [R] time of serialization

Hello, I take this back, wrong implementation of the experiment. Sorry for the noise. Regards Saptarshi On Sun, Aug 15, 2010 at 12:22 PM, Saptarshi Guha wrote: > Hello, > I have question about the overhead in lapply. > x is a list of 3000 lists. Each of the i (1<=i<=3000) l

[R] time of serialization

Hello, I have question about the overhead in lapply. x is a list of 3000 lists. Each of the i (1<=i<=3000) list elements is pair of two elements: a string vector and a data frame x is roughly 235MB. > gc() ## > z <- system.time(y <- lapply(x,function(r){ system.time(serialize(r,NULL))['elapsed

[R] Highlighting points in a quantile plot for different values of a second column

Hello, I have the following data frame, using lattice and qqmath, how do I display the quantile plot (e.g distribution = qunif), but highlight the f==TRUE and f==FALSE differently? library(lattice) pp <- function(n) ((1:n)-0.5)/n x=data.frame(x=runif(20),f=sapply(runif(20),function(r) r>0.5)) I

Re: [R] Reading large files

Hello, Do you need /all/ the data in memory at one time? Is your goal to divide the data (e.g according to some factor /or/ some function of the columns of data set ) and then analyze the divisions? And then, possibly, combine the results ? If so, you might consider using Rhipe. We have analyzed (e

[R] Question on codetools and parse trees

Dear R Users, Using codetools I obtained the text representation of the parse tree for this snippet z=quote({x[1]<-2}) showTree(z) > ("{" (<- ([ x 1) 2)) (A) If I understand correctly, x[1]<-2 ought to be "[<-"(x,1,2), so shouldn't i see ("{" ( [<- x 1 2 ) ) If indeed the parse tree in

[R] Composing a sequence of functions dynammically

Hello, I would like to compose a series of functions each taking one argument. Let us assume the values returned by the functions are contained within the domains. So b<-function(r) r[-1] compose("b","b") b(b(x)) This is my solution, is there something succinct ? Regards Saptarshi compose <- fu

Re: [R] Package is loaded but functions are not exported

ust want : exportPattern("^rh") > > What did you expect the backslash to do ? > > On 12/01/2009 05:18 PM, Saptarshi Guha wrote: >> >> Hello, >> I wrote a package, which in the NAMESPACE file exports functions like >> this: >> >> exportPattern(

Re: [R] Package is loaded but functions are not exported

As a followup, i can do things Package:::rh*, there just no exported. On Tue, Dec 1, 2009 at 11:18 AM, Saptarshi Guha wrote: > Hello, > I wrote a package, which in the NAMESPACE file exports functions like this: > > exportPattern("^\\rh") > > On R-2.8 (Linux, 64), upo

[R] Package is loaded but functions are not exported

Hello, I wrote a package, which in the NAMESPACE file exports functions like this: exportPattern("^\\rh") On R-2.8 (Linux, 64), upon loading the package I have the rh functions present. On R-2.10, Mac OS X, (32 bit), it builds, loads, but the functions are not loaded, i.e the only function is rh

Re: [R] Force a variable substitution in expression

> The substitute() function can do it, but the bquote() function is the most > convenient: > >> foo <- function(s) { > +   bquote(expression({ > +    v <- .(s) > +    print(v) > +   })) > + } >> foo(10) > expression({ >   v <- 10 >   print(v) > }) > > Duncan Murdoch > Thanks, after sending this em

[R] Force a variable substitution in expression

when eval'd e.g x <- foo(10) eval(x) Error in eval(expr, envir, enclos) : object 's' not found Q: How do I force a substitution so that the returned expression has the value of 's' 'hardcoded' in it e.g > foo(10) returns expression({ v <- 10

[R] Basic Question about local

I have some beginner's questions regarding local, in the docs, it says that "local evaluates an expression in a local environment". Q1: why is B different from A? In B, is a<-a+1 getting evaluated before eval proceeds? #A a=0 eval(quote(a<-a+1),new.env()) a # 0 #B a=0 eval(a<-a+1,new.env()) a #

[R] ANN: rproto v1 (Protocol Buffers and R) [repost]

Hello, (Previous message was scrubbed) I apologize if this is not the list for package announcements. Having said that I've released a package called rprotos which implements a simple serialization using Googles protocol buffers[1]. The package also includes some miscellaneous functions for writin

[R] ANN: rproto v1 (Protocol Buffers and R)

it is possible to extend this to serialize functions, expressions, environments and several other objects. However that is some time in the future. Regards Saptarshi [1] http://code.google.com/apis/protocolbuffers/docs/overview.html Download: http://ml.stat.purdue.edu/rproto_1.0.tar.gz Saptarshi

[R] Writing to a UDP server from R?

Hello, I have used socketConnection to connect to a TCP server. I havent figured out a way to do the same with a UDP server. i.e I have a server listening on 9000, communicating via UDP. I would like to , from R, send packets to this server, This does not work u <- socketConnection('localhost',9

Re: [R] Remembering a value in multiple calls of a function

assignments made by this operator are located. > > > Bill Venables > http://www.cmis.csiro.au/bill.venables/ > > > -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of Saptarshi Guha > Sent: Friday, 17 July 2009

[R] Remembering a value in multiple calls of a function

Hello, I tried this pseudo-generator style experiment (see below). The "<<-" operator assigns to in the calling environment which would be the environment of "getN". Yet when the function incr is returned, isn't this environment lost? Also the print displays GlobalEnv, yet the globalenv does not h

[R] Using yum to install R-2.9

Hello, On Fedora 8, yum install R , installs R-2.6. I dont have much experience with yum, how do change the repos(?) to install R-2.9? Thank you Saptarshi __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read t

[R] R on EC2 and R CMD javareconf

Hello, I am using EC2 to launch several instances. On each instance, I perform the following commands yum -y install R (installs R-2.6) R CMD javareconf sleep 10 wget rpackage.tgz R CMD INSTALL rpackage.tgz Now, rpackage.tgz needs to be built with jni libraries. When the instance is fully up, i l

Re: [R] integer ranges in R vs C and Java

> You've hit on the reason -- representation of NA > > src/main/arithmetic.c:157:    R_NaInt = INT_MIN; Aha! Yes, I missed that. > > (R-devel seems more appropriate for this question). Yes, i was not sure. Thank you Saptarshi __ R-help@r-project.org

[R] integer ranges in R vs C and Java

Hello, I'm using R-2.9 and have a question about integer ranges. On C, (OS X platform), LONG_MIN and LONG_MAX(from limits.h) correspond to -2147483648(-2^31) and 2147483647 (2^31-1) In Java(1.4), Integer.MIN_VALUE and Integer.MAX_VALUE have the same values. On R, as.integer(2^31-1) is the maximum

[R] ANN: RHIPE 0.1

educe=r,input.folder="X",output.folder="Y") URL: http://ml.stat.purdue.edu/rhipe There are some downsides to RHIPE which are described at http://ml.stat.purdue.edu/rhipe/install.html#sec-5 Regards Saptarshi Guha __ R-help@r-project.

[R] rhipe v0.1

fortunately, I haven't had the chance to compare with rmpi and snow. TODO(will appear soon ): another function: rhmr - mapreduce using R. Regards Saptarshi Guha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list http

[R] List assignment in a while loop and timing

Hello R users I have question about the time involved in list assignment. Consider the following code snippet(see below). The first line creates a reader object, which is the interface to 1MM key-value pairs (serialized R objects) spanning 50 files (a total of 50MB). rhsqstart initiates the reading

[R] A question about rJava and the classpath

.jclassPath() does contain an entry to this class. Moreover, when run at the command line using the *same* classpath, I don't get any such error messages. Is there a possible reason why? Regards Saptarshi Saptarshi Guha __ R-help@r-project.org

[R] max-nsize, cons : what do they all mean?

quite understand it. What does the option do and why did I initially run into an error ? >From man R --max-nsize Set max number of cons cells to N Why should there be a maximum? Thanks for your time Saptarshi Guha __ R-help@r-project.org mail

[R] Plots of different aspect ratios on one page, base aligned(trellis.print)

) The two figures are not base aligned. I would like them share the same the baseline and same height, if necessary the paper width and height can be adjusted ( i tried setting the paper width and height to no avail). Is the way to base align the two figur

[R] R and Hadoop Integrated Processing Environment - RHIPE

more information and examples please visit this page: http://www.stat.purdue.edu/~sguha/rhipe . If anyone would like to contribute to this project, please email me directly - any help is welcome. Regards Saptarshi Guha __ R-help@r-project.org ma

[R] eval using a environment X but resultsin .GlobalEnv

to this instead of iterating over all objects E and assigning into .GlobalEnv? Thank you Saptarshi -- Saptarshi Guha - saptarshi.g...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the

[R] Writing a Long across the network?

Bin(length(x),con=conn,endian="big") #conn opened in binary But the response on the server side is wrong, eg. 1 is received as 4294967297 How do I then write long across the network from R? Thank you Saptarshi Saptarshi Guha | saptarshi.g

Re: [R] Rserve and creating a list of lists

und this? Regards Saptarshi R.version = 2.8 > > On Nov 30, 2008, at 5:53 PM, Saptarshi Guha wrote: > >> Hello, >> I have some code which generates lattice objects. The function >> recieves serialized forms of the lattice objects which it

[R] Rserve and creating a list of lists

o interpret [EMAIL PROTECTED] *** REXPFactory unable to interpret [EMAIL PROTECTED] * ** REXPFactory unable to interpret [EMAIL PROTECTED] How can I in general,force the unserialize to return a list? Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha Marijuana

[R] Splitting a lattice stripplot across several pages

dataset, the y-axis labels overlap so I would like to split it across several panels(1 panel per page) with about 25-50 per panel. Is there a way to do this? Regards Saptarshi Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha [[alternative HTML

[R] Lattice and Axis height

e of the dummy variable pulling in data from a postgres database setting my limits for each panel based on the pulled in data and plotting that. Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha [[alternative HTML version deleted]] __

[R] Conditioning variables in lattice - not all combinations

tles.) Is there a way to solve this? Also, each level of C appears in exactly one combination of A and B (the combinations that appear in the data set, not the ones produced by lattice) Kind regards Saptarshi Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha [[a

[R] Fwd: Lines between panels in lattice

Forgot to send to the list. Begin forwarded message: > From: Saptarshi Guha <[EMAIL PROTECTED]> > Date: September 19, 2008 1:43:50 PM GMT-04:00 > To: Gabor Grothendieck <[EMAIL PROTECTED]> > Subject: Re: [R] Lines between panels in lattice > > Certainly. > &g

Re: [R] Lines between panels in lattice

Got it. It should be plot1.panel.1.2.off.vp and likewise. Thanks Saptarshi On Sep 19, 2008, at 12:08 PM, Saptarshi Guha wrote: > Hello, > I have a multi-page display each consisting of two-panels above each > other. > I need to draw a line from the top panel to bottom

[R] Lines between panels in lattice

lot1.panel.1.1.vp") grid.line.to(unit(1.2,"native"),unit(3.5,"native")) However, I can see the line in the bottom panel, but nothing in the top. Is there some clipping going on? Thanks Saptarshi Saptarshi Guha | [EMAIL PROTEC

[R] Axes Labels on the Right side of lattice panel

ght happen (as pointed out in the help page) but how can I get around it? Should I specify a width to the device? Thank you Saptarshi Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha [[alternative HTML version deleted]] __

[R] Question on spacing around plot and box in lattice

(Mac) device, there is very little padding between the bottom of the curve and the lower horizontal axis and between the maximum values of the curve and the upper horizontal axis. How can i increase the padding - top,bottom,left and right? Thanks in advance for your time.

[R] Minor tick marks

Hello, Is there a way to add minor tick marks to the Y-axis of a lattice plots? Thank you Saptarshi Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha [[alternative HTML version deleted]] __ R

Re: [R] Setting a graph flushed to edges of axes

dding between the endpoints and >> the >> vertical axes. >>How can I remove this padding? > > A reproducible example would have helped, but perhaps you want > > scales = list(x = list(relation = "free", axs = "i")) > >

[R] Setting a graph flushed to edges of axes

Hello, I need to plot a line graph using lattice so that the endpoints are flush with the left and right vertical axes. So the scale end points and horizontal axes length should coincide. This works u=newdata[1:100,] #u[,1] is from 1700-1795 xyplot

Re: [R] Set length of axes in lattice

Thank you. On Feb 17, 2008, at 1:18 PM, Deepayan Sarkar wrote: > See ?print.trellis. > > p <- xyplot(1 ~ 1, aspect = 0.5) > p > plot(p, panel.width = list(2, "inches"), panel.height = list(1, > "inches")) > > This overrides 'aspect=' though, that is, you will need to specify > both width and heig

[R] Set length of axes in lattice

same scales. I suppose i need to do something in prepanel but what? Is there any function i can call to set the actual length of the axes? Thank you Saptarsho Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha [[alternative HTML ve

[R] Set length of axes in lattice's xyplot?

thing in prepanel but what? Is there any function i can call to set the actual length of the axes? Saptarshi Guha | [EMAIL PROTECTED] | http://www.stat.purdue.edu/~sguha __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/lis

[R] A question regarding two dimensional optimization with constraints

Hello, I have an optimization problem which I would like to solve in R but am not sure how to approach this. I have a cost function C which is quadratic in rx and ry (if it helps, the cost function is separable in rx and ry) and is always positive for all rx,ry. I wish

[R] Problem compiling R - "use of NULL environment is defunct"

Hello, I downloaded R-2.5.1 and configured it on a AMD x86-74 running Redhat. During compilation i get this error configure --prefix=$HOME/mine make mkdir -p -- ../../../../library/methods/libs make[5]: Leaving directory `/home/sguha/tmp/R-2.5.1/src/library/ methods/src' make[4]: Leaving direc