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Hi R users Having both a faster CPU and more memory will boost computing power. I was wondering if only adding more memory (1GB -> 2GB) will significantly reduce R computation time? Taka, _________________________________________________________________ Get FREE company branded e-mail accounts and business Web site from Microsoft Office Live

...sum of the four linear functions) I started with a function for summing summing <- function(a,b) {temp <-0; for (i in 1:length(a)) temp <- temp + a[i]*X+b[i] } plot(X, summing(a,b)) I am a R beginner. I am looking for a more efficient R code. Any help or advice will be appreciated. Taka,

Hello, I''m trying to setup postgreSQL onto rails on linux and when I type bundle install this is the error that i get. I guess its not finding the files Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /home/taka/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb checking for bzlib.h... no checking for BZ2_bzWriteOpen() in -lbz2... no *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may n...

...no empty line at the end of the text files. R gave me this warning below; In addition: Warning message: incomplete final line found by readLines on 'output.txt' I know this doesn't affect anything and just warning messages. Is there any way to prevent this warning message. Thanks Taka

...l <- prob * log(prob,base=2) >cal [1] -0.5000000 -0.5287712 -0.5210897 -0.3321928 NaN Is there any way to change NaN to zero ? I did come up with this by applying Ripley's relpy to my previous question cal <-prob*log(pmax(prob,0.00000001),base=2) Any suggestion ? Thank you Taka

...ry and then make a string vector consisting of the file names in the directory. For example, under c:\temp\ there are 4 files a.txt, b.txt, c.txt, and d.txt I would like to have a string vector c("a.txt","b.txt","c.txt","d.txt") How do I do that? Thanks Taka, _________________________________________________________________ Make every IM count. Download Messenger and join the i?m Initiative now. It?s free. http://im.live.com/messenger/im/home/?source=TAGHM_June07

...<- rnorm(length.of.rand.numbers, 0,1) start <- dd[1]/2+5*(i-2)+1 end <- start + length.of.rand.numbers-1 mat[((start):end), i]<- my.rand.num } mat } Do you (any R users) have any suggestion to this function to make this function work better or efficiently? Taka It works but I >From: "Petr Pikal" <petr.pikal at precheza.cz> >To: "Taka Matzmoto" <sell_mirage_ne at hotmail.com>,r-help at stat.math.ethz.ch >Subject: Re: [R] creating a certain type of matrix >Date: Tue, 07 Feb 2006 08:58:59 +0100 >MIME-Version: 1...

...ion 3 of S language. Is there any change since 2000 ? I searched R-help archive for using C or C++ with R. Although there are some postings, I am looking for up-to-date answers. Which one ( C and C++) works better with R? What complier is the best suited for R ( gcc or visual c++ or others)? Taka, _________________________________________________________________ The next generation of Search?say hello!

...I do not utilize all information the data have. I can also do this. For each product, the number of people * rank scores and then pick lowest number for the best product. Is there any other way I can summarize this data? Any suggestion for R fundtions or statistical methos will be appreciated. Taka, _________________________________________________________________ Get today's hot entertainment gossip http://movies.msn.com/movies/hotgossip

...} } } cbind(x,y,membership) There is an error message "Error: object "membership" not found" I can't figure it out. Any help or advice on improvement for this code will be appreciated. I konw this code is not well written at all. Thank you Taka

...ector containing observation IDs. observation<-c(1,2,3,4,5) ID<-c(1,3,4) Then, I would like to program a code that returns a results showing matched observations like result: TRUE FALSE TRUE TRUE FALSE I am reading S programming, but I cannot find a way to do this. Thank you very much. Taka

...n cond.orders(foo) : Invalid value of index.cond". Please let me know if I didn't use index.cond argument properly. I looked at the example in R-help but all examples have just only one conditioning variable. Is there any way I can arrange the panels in whatever order I want ? Thanks Taka

...;" hotplug = "" vbd = "" 5696 = "" hotplug = "online" 768 = "" hotplug = "online" # ------------------------------------------- (PC:Dell Optiplex 755:2.66GHz,4GB memory, Getting Source Date: 2009/05/21) ---- Taka<kb-taka@kick.gr.jp> _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...e are data1, data2,...., data100. All lists have the same number and the same name of components. Is there any function I can use for applying to only a specific component across 100 lists? (e.g., taking mean of $c acorss 100 lists) or do I need to write my own function for that? Thank you. Taka,

Dear R users, I would like to extract df and Mean Sq values. I tried several things (e.g., str(model1), names(model1)) but I can't find a way to extract these values. I also tried to search using RSiteSearch. Any help will be appreciated. Thanks Taka, model1<-aov(dv~iv.1*iv.2*iv.3) summary(model1) Df Sum Sq Mean Sq iv.1 1 3.200 3.200 iv.2 9 62.200 6.911 iv.3 3 37.450 12.483 iv.1:iv.2 9 12.050 1.339 iv.1:iv.3 3 7.500 2.500 iv...

...amy si? nad zast?pieniem kilku host-?w storage jednym rozwi?zaniem, macierz? o odpowiedniej pojemno?ci dyskowej i wydajno?ci I/O. Mo?ecie podpowiedzie? plusy i minusy takiego rozwi?zania? Czy macierze zazwyczaj dysponuj? kilkukrotnie wi?ksz? wydajno?ci? I/O ni? pojedynczy serwer z dyskami SATA? Czy taka wydajno?? I/O jest skalowalna? Czy skalowa? przestrze? dyskow? w macierzach mo?na "bez ogranicze?"? Dzi?ki! Pozdrawiam, R.

...) and headers/libs are not available I installed xserver-xorg-dev ok. I am using Fedora 6 on my desktop and have never seen these above error messages. Should I install a Fedora and R on it? Or should I just create a link using 'ln -s'? I appreciate your help. Have a festive holiday! taka

Hi everyone, I need help. I want to have a "uniform" kind distribution. When I used sample function I got almost twice many zeros compared to other numbers. What's wrong with my command ? temp <-sample(0:12, 2000, replace=T,prob=(rep(1/13,13))) hist(temp) Thanks in advance, Taka,

...nd then 5 random numbers coming from rnorm(1,0,1). I tried to create 10 different functions ( one for 10, 20, 30, 40, .... , 100 variables) but it's not efficient. Any help or advice for creating one function that can do all 10 kind of variable cases would be appreciated. Thans in advance Taka

Hi R users I have serveral binary variables (e.g., X1, X2, X3, X4, X5, X,6, and X7) and one continuous variable (e.g., Y1). I combined these variables using data.frame() mydata <- data.frame(X1,X2,X3,X4,X5,X6,X7,Y1) after that, I sorted this data.frame rank.by.Y1<-order(mydata[,8]) sorted.mydata<-mydata[rank.by.Y1,] after that, I replaced Y1's values with values ranging from 1