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Dear all, I was reading last night the lm and the Formula manual page, and 'I have to admit that I had tough time to understand their syntax. Is there a simpler guide for the dummies like me to start with? I would like to thank you in advance for your help Regards Alex [[alternative HTML version deleted]]

Hello everyone., I am looking for a covariance function this not the first time I have this type of problem (to find which function does something). I try in google with "R cran covariance function" but usually this ends with different results that do not help me that much. Could you please try to advice me how to search for what function implements the functionality you want.

Hello everyone. In matlab  (again) there is a fucntion find that returns you the indexes where the condition in find was met. I want the same functionality in R i.e find(Mydata>2) to return all the indexes where the condition is met. Do you know something like that? Also when I try to search in google using for example the word R inside the search lemma I get very few results as the R confuses

Hello! I wouldl ike to ask you if R supports step by step execution. I have written some nested loops and I would like to check on every step what are the values of some variables. Printing all the variables just creates a really big output of numbers. Could you please give some debugging tutorial that included the aforementioned functionalities? |Moreover can you please tell me how I

Hi I''m following the tutorial from the website. I''ve got to the end, but I''ve been getting this failure: ''A stack with one item should return top when you send it top FAILED "one item" should equal "one item" ./stack_spec.rb:28: ./stack_spec.rb:27:in ''instance_eval'' 3 specs 1 failure I do not

Hello when my code executes I receive the message that were some warnings. I want to catch warning messages at run time so to print some local variables and try to understand why this warning happens. I searched on internet and I tried withCallingHandlers( which seems to work but as I used Rkward the result is awful. I get a prompt to copy paste a value only while at the same time my background

Dear all, I have a variable that I would like also to use it as a string. The reasons is that I want to collect results from different function to one table.. So when I use the  colnames(mymatrix) <-c(function1.function2,function3) the function1, function2, function3 to be "converted" to simple strings so as  colnames(mymatrix)

Hello everyone. I would like to find the sample covariance matrix using R. So far I read on the wikipedia what a sample_covariance is http://en.wikipedia.org/wiki/Sample_covariance according to wikipedia one vector is enough to calculate the sample covariance matrix. In R I tried cov(myvector) and I get the reply that I need to pass either two argument or one matrix with x,y values . How can I

Dear all, I would like to print a few values with less digits than the default. How I can reduce how many digits are printed ?(warning: not the real integer resolution but what is shown in screen) Best Regards Alex

I am a new learner of Ruby on Rails. I followed through the railstutorial.org tutorial and I''m trying to learn off the sample demo app where you can to make microposts and only the people who are "following" you can see them. If I wanted to make it so every user can see microposts as an additional functionality, what are the steps to do that? -- Posted via

in a simple plot. When i do plot is it possible to zoom in or out or this is not possible at all? Best Regards Alex [[alternative HTML version deleted]]

Good morning :) I want to use some c code to read statistics as well as the configured settings ... .. Just give me some links for starting reading :) Have a nice day ____________________________________________________ Yahoo! Sports Rekindle the Rivalries. Sign up for Fantasy Football http://football.fantasysports.yahoo.com

Dear all, I would like to ask you if R can produce any kind of sound. It would be useful when code execution stops R to notify me by playing some sound. Is that possible in R? I would like to thank you in advance for your help Best Regards Alex

Dear all, I would like to ask your help concerning an error message I get. I have the following struct str(CRagentInTime[[1]]) List of 2 $ timelag: int 0 $ CRagent:List of 50 ..$ :List of 3 .. ..$ CRmap: num [1:256, 1:256] NA NA NA NA NA NA NA NA NA NA ... .. ..$ xy : num [1:2] 10 177 .. ..$ sr : num [1:49] -94.9 -92.8 -79.5 -97.6 -78.4 ... and I wanted to select all the sr fields

Dear all,  I have a formula of the form y=ax+b I know everything except b. How I can ask R to do fitting to find only the value of b? I already know the lm() but it always return both an intercept point (b) and the a. What should I do ? I would like to thank you in advance for your help B.R Alex [[alternative HTML version deleted]]

Dear all, I am having a vector of around 300.000 elements and I Want to slide fast a window from the first element until the last-Windowsize what I have so far is the following for statement:  for (i in 1:(length(data[,1]) - windowSize)) {         out[i] <- mean(data[i:(i + windowSize - 1), ])         elements[i]<-length(i:(i + windowSize - 1))       } but this of course takes ages to

Dear all, I would like to ask you if R has a library that can work with different GPS formats For example  I have a string of this format N50° 47.513 E006° 03.985 and I would like to convert to GPS decimal format. that means for example converting the part N50° 47.513 to 50 + 47/60 + 513/3600. Is it possible to do that with R? What is the name of such a library? I would like to thank you in

Dear all, I would like to search in a string for the second occurrence of a symbol and replace the symbol after it For example my strings look like sta_+1+0_field2ndtry_0000$01.cfg I want to find the digit that comes after the second +, in that case is zero and then over a loop create the strings below sta_+1+0_field2ndtry_0000$01.cfg sta_+1+1_field2ndtry_0000$01.cfg

Hi i am sharing my connection in my office with my partners ... I want to limit my connection to 20kilobyte but i dont know how to do that :( Can u plz hep me ? --------------------------------- How low will we go? Check out Yahoo! Messenger’s low PC-to-Phone call rates. _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl

Hello everyone. I am using ggplot and I need some help to merge these two plots into one. plot_CR<-function(x,y,agentid,CRagent){   library(ggplot2)     agent<-CRagent[[agentid]] # To make following expression shorter   ggplot((data.frame(x=CRX,y=CRY,sr=agent$sr)))+   geom_point(aes(x,y,colour=cut(sr,c(0,-10,-20,-30,-40,-50,-60,-70,-80))))+   geom_text(aes(x,y,color=cut(sr,