search for: rxpert

Dear Rxperts, I am aware of Sweave that generates reports into a pdf, but do know of any tools to generate to export to a MS Word document... Is there a way to use R to generate and export report/publication quality tables and figures and export them to MS word (for reporting purposes)? Thanks so much, Sant...

Dear Rxperts, Using R 2.8.1 and trying install.views("Cluster") getting error Error: could not find function "install.views" Please help:-( -- Oscar Oscar A. Linares Molecular Medicine Unit Bolles Harbor Monroe, Michigan [[alternative HTML version deleted]]

Dear Rxperts, Was wondering if there is any function in R similar to options("time.zone"): found in S-Plus that can help in looking at the default timezone settings.. Thanks much, Santosh [ [[alternative HTML version deleted]]

Dear Rxperts, I have a varaibles data file that looks like this p(1) 10 p(1) 3 p(1) 4 p(2) 20 p(2) 30 p(2) 40 p(3) 4 p(3) 1 p(1) 2 I cannot process these data with R because it does not like the parentheses. How can I get these to look like: p1 10 p1 3 p1 4 p2 20 p2 30 p2 40 p3 4 p3 1 p3 2 The data is in...

Dear Rxperts, Below is a small sample of values (cut short due to space considerations while posting).. I was wondering if it is possible to construct boundaries (or intervals) based on the distribution of points. Is it anything similar to boundary detection of distributions? x1 <- c(0.00,0.25,0.50,1.00,2...

Dear Rxperts! My colleagues used SAS PROC COPY to generate the xpt files that could be read by the available "xpt" file reading packages in R. However, I am unable to use the R packages for reading SAS transport files generated through SAS PROC CPORT. I have tried SASxport, Hmisc, and foreign. Any...

Dear Rxperts/RStudio users, Is there a way to set tabs (the TAB key) in the text editor of RStudio, similar to the way customization can be done in Tinn-R? Thanks and regards, Santosh [[alternative HTML version deleted]]

Dear Rxperts, Through Windows OS, I created shortcuts (paste as shortcut) to excel spreadsheets ( with "xlsx" as the file extension). I wasn't able to read the shortcuts through R and using "read" functions of "xlsx" package. exf <- "a1.xlsx.lnk" > read.xlsx...

Dear Rxperts! I was wondering if it is possible to write a function which can take in argument of a subset or condition.. Of course, I am aware of the alternate methods like coplot, par.plot, xyplot etc... I am specifically interested in using conditions/subsets with "plot".. A simple fragmented ex...

Dear Rxperts! A simple example where "write.csv" does not seem to accept user specified arguments.. Why? write.csv(t(1:10),"./te1.csv",quo=F,col.names=F) Warning message: In write.csv(t(1:10), "./te1.csv", quo = F, col.names = F) : attempt to set 'col.names' ignored...

Dear Rxperts, is there way to identify intervals from continuous data (having some kind of a pattern) and then pick the value of most frequency? a1 <- round(rnorm(50,mean=0,0.1),2) a2 <- round(rnorm(50,mean=1,0.2),1) a3 <- round(rnorm(50,mean=5,1),0) a4 <- round(rnorm(50,mean=14,4),0) a5 <- r...

Dear Rxperts Below is a small vector of values of zeros and non-zeros... was wondering if there is an efficient way to get the block sizes of submatrices of a big matrix similar to the one shown below? diagonal elements can be zero too. Rows with only a diagonal element may be considered as a unit block size....

Hello Rxperts.. I have a peculiar situation.. XML library is not available with R2.15.1 whereas I was able to install it with R version 2.13.1. Would highly appreciate your suggestions. I am now trying to see if XML works with previous versions of R. Thanks, Santosh [[alternative HTML version deleted]]

Derar Rxperts, I have a strange situation.. I see curly brackets around "strip.levels" in multipanel strips while using lattice::xyplot. .How do I get rid of the curly brackets? For some reason, I am not able to reproduce the problem using an example below... Any suggestions are highly welcome! Thanks...

Dear Rxperts, q <- data.frame(p=rep(c("A","B"),each=10,len=30), a=rep(c(1,2,3),each=10),id=seq(30), b=round(runif(30,10,20)), c=round(runif(30,40,70))) The operation below... tabular(((p=factor(p))*(a=factor(a))+1) ~ (N = 1) + (b + c)* (mean+sd),data=q) yields some rows of NAs and NaN as...

Dear Rxperts I have a data.frame as follows A B C D 1 4 7 10 2 5 8 11 3 6 9 12 I want to convert it to a data frame with a single row (i.e., stack the columns without the heading) 1 2 3 4 5 6 7 8 9 10 11 12 Any suggestions please. Thanks in advance! -- Oscar Oscar...

Dear Rxperts.. what settings in barplot and histogram do I use, to show bars in an monotonously increasing or decreasing order of the frequency of a categorical variable? an example is provided below.. histogram(~factor(sample(letters,200,rep=T))) I was able to get it in 3 - 4 steps.. l a1 <- sample(let...

Hello experts, Sorry for posting the SPlus related question here.. I have not found any solution yet after some attempts and hence, sending it to a wider spectrum of users! I was successful in processing files uing R's XML librariy. Thank you, Rxperts! I know there are libraries like XML and SPXML available in S-Plus. Could anyone please share examples of reading an xml file and save the contents in a data frame? Are there Splus equivalents of "getNodeSet", "xmlSApply" and "xmlValue"? Thanks so much! Santosh...

Dear Rxperts.. Got a couple of quick q's.. I am using R in windows environment (both 32-bit and 64-bit) a) Is there a way to create symbolic links to some data files? b) How do I read data from symbolic links? Thanks so much.. Santosh [[alternative HTML version deleted]]

Dear Rxperts, Running the following code: ======================================================= twlo=10; twhi=20; wt=154; vd=0.5; cl=0.046; tau=6; t=3; F=1; wtkg <- wt/2.2 # convert lbs to kg vd.pt <- wtkg * vd # compute weight-based vd (L) cl.pt <- wtkg * cl # comput...