similar to: Timer

I would like to know how to convert a string with characters to all uppercase or all lowercase? If anyone could let me know if there exists a function in R for the conversion, that will be very helpful. Regards, Suman [[alternative HTML version deleted]]

I am using R on unix. While in R how do I execute the unix shell commands? Is there a way to do it? I am executing a function in R and the matrix resulting from the function has to be passed on as an input to unix command. Any directions will be helpful. Thanks, Suman [[alternative HTML version deleted]]

Hello All, I wanted to do many plots (in my case, wanted to get 6 histograms) on the same figure. Is there a method in R that analogous to 'subplot' in MATLAB? Any help will be very much appreciated. thanks, Suman [[alternative HTML version deleted]]

Hi, I wanted to know how to compute the correlation ratio (eta) between two variables using R. Is there any function to compute the correlation ratio. Any help will be very much appreciated. Thanks, Suman [[alternative HTML version deleted]]

Hi everybody - this is an oddball question. I wonder if anybody has programmed any games in R, such as Sudoku, Tic-Tac-Toe and the like. Or even a flight simulator... R mateys! Let's make some t-tests! Regards, David

I need help with calculating lsmeans (adjusted means) of different terms in a linear model including the main effect and the interaction effect terms. I use lm to run the linear models...I previously noted from literature that that "effects" package can be used to generate lsmeans. But I tried to use it but could not figure out which option to use to get means. If anyone can give an

Hello, I have a big matrix of size (20,5) -bmat . I have to loop though the rows in the matrix and create DIFFERENT matrices each time I go through the loop. counts=c(4,6,10); p=1; for (i in 1:length(counts)) { smat=bmat[p:p+i-1,]; p=p+i; } The problem is smat overwrites itself each time inside the loop. I would like to have smat1, smat2, smat3 instead of a single vector smat.

Hello, I have a dataset with 20,000 variables.and I would like to compute a pearson correlation matrix which will be 20000*20000. The cor() function doesnt work in this case due to memory problem. If you have any ideas regarding a feasible way to compute correlations on such a huge dataset, please help me out. Please feel free to share your memory handling techniques in R. Thanks, Suman

Hello, I wanted to know how to plot a histogram using a vector of frequencies rather than the data vector as a whole. So I have two vectors: a vector of labels V1= c("A","B","C","D") and vector B which is a vector of frequencies of A, B, C and D respectively V2=c(20,50,60,30). I wanted to plot a histogram of the labels using the frequencies. I could not

Sorry if this has been beaten to death here but I couldn''t find the exact answer I was looking for. In the app I''m writing, we convert the score to a percentage and display it with the search results. The problem is when you search for an exact phrase (for example) and it matches the title of a document exactly, you only get a 17% match. Has anyone seen a way to either curve

Hello , Is there any function to mesurate the duration of a procedure (like tic and toc in matlab) ? Tic Source("procedure.R") Toc (toc is the duration between the execution of tic and the execution of toc) Thank you nicolas [[alternative HTML version deleted]]

Here's a small R program: --------------------------------------------------------------------------- a <- rep(1,10000000) system.time(a <- a + 1) system.time(for (i in 1:10000000) {a[i] <- a[i] + 1}) --------------------------------------------------------------------------- and here's its matlab version:

I'd echo a lot of what has been said about this by the folk who have been making R work so well. One of the main difficulties is that the environment of computations affects relative performance. e.g., what settings did a distro package builder choose. I note that my 3 GHz Dual Core machine running Ubuntu 8.04 gets octave 3.0.0 octave:6> tic; a = a + 1; toc Elapsed time is 0.120027

Can you push this to a repo somewhere? I want to see what the final version looks like after all your changes, but it's hard to see that with these patches. On Mon, Feb 15, 2016 at 12:38 AM, Ben Skeggs <skeggsb at gmail.com> wrote: > From: Ben Skeggs <bskeggs at redhat.com> > > Adds support for the new TIC layout that's present on Maxwell GPUs, > heavily based on

On 2/25/20 9:13 PM, Jason Wang wrote: > > On 2020/2/26 ??12:51, Suman Anna wrote: >> Hi Jason, >> >> On 2/24/20 11:39 PM, Jason Wang wrote: >>> On 2020/2/25 ??5:26, Suman Anna wrote: >>>> The functions vring_new_virtqueue() and __vring_new_virtqueue() are >>>> used >>>> with split rings, and any allocations within these

Hi, I read at least 100 different documentations during the last week and didn't get it. So I decided to ask the list for help :) Unfortunately we have to move to a Windows 2008 Server ADS in our company as this is required for some other projects. But we want to keep our nice 5+ samba-server providing fast 50TB+ of storage. So we have to find a way to nicely integrate the storage with the

I have looked for several days and can not find the answer to my problem, but I'm sure it has to be a simple issue. I'm trying to map drives inside Windows Server 2003 Terminal Session from a local Samba server but can't get connected. I figure the problem is in Windows Registry but can't find web page on what needs to be changed to get this working. I built a new Windows 2003

Dear R Helpers, I am getting an error message from the try function that I don't understand so I am hoping that someone can help. I am scraping from web pages, but sometimes they disappear. When that happens I need to control for it with some sort of function. This web page is parsed without a problem. exh<-"NASDAQ" tic<-"EGHT"

Hello, I am stuck in a relatively simple procedure and was wondering if anybody knows the answer. I am a relatively new R user. How do I use an argument of a custom function in the name of a dataset in R? For example, I have the function: MyF <- function(Tic, price){ xxxxx xxxxx xxxxx Ratio.Tic<- SharpeRatio.annualized(roc) } I would

Hello,   In R, How to read SPSS file and access the data item? Thank you. Regards, Suman Kundu [[alternative HTML version deleted]]