similar to: Execute SQL Stored Procedure in R

I would like to create a vector that is a sequence from 2 vectors. Could anyone provide suggestion on this? For example > a<-c(1,2,3) > b<-a+2 > b [1] 3 4 5 I would like to have a vector that is a sequence which starting from a and ending at b c = c(1:3,2:4,3:5) c = c(1,2,3,2,3,4,3,4,5) Thank you Best Regards, Suphajak Ngamlak Equity and Derivatives Trading Phatra Securities

Dear All, Could you please recommend how I can do this? I have several text files in one folder. Let's name them A0801.RSK, A0802.RSK, .... I would like R to 1) Know all file names in this folder 2) Update value in one column of these files 3) Write results in another text file with _xval in the file names Below is R code for read, update, and write one file

Dear all, I have a list of correlation coefficient matrixes. Each matrix represents one date. For example A[[1]] A B C A 1 0.2 0.3 B 0.2 1 0.4 C 0.3 0.4 1 A[[2]] A B C A 1 0.5 0.6 B

Dear all, I am trying to do weighted regression using lm function in R. However, I have a question why the results from 1) lm(formula = Y~aX, weight = w) 2) lm(formula = wY~waX) are different. Aren't they supposed to have the exactly same result? Below are the R code to see difference in regression results MatY <- c(0.15,0.42,0.31,0.22) MatX <-

Dear all, I would like to do sample statistics, e.g. mean, median from very large dataset. This is part of commands I use routinely with several dataset so I would like to make it into function. The simplified examples are Test<-data.frame(A=c('a','b','c','a','b','c'),B=c(1,2,3,4,5,6)) #Create function (This one work)

Hi, R-help group, I kinda meeting a question when using R-2.12.0(Previous version is 2.10.0): When I typed "library("Biobase")", everything is alright! But when I type "library("genefilter")", it doesn't work! And echo this: Error in library.dynam(lib, package, package.lib) : DLL 'RSQLite' not found: maybe not installed for this

This is my first post. I am running Mac OS X version 10.6.3. I am running R 2.11.0 GUI 1.33 64 bit. This may or may not be related to sqldf, but I experienced this problem while attempting to use an sqldf query. The same code runs with no problem on my Windows machine. Here is what happens: > r=sqldf("select ... ") Loading required package: tcltk Loading Tcl/Tk interface ... Then

Have a long script that runs fine on windows (32 bit). When I try to run in on two different macs (64 bit), however, it hangs with identical behavior. I start with: library(sqldf) This results in messages: Loading required package: DBI Loading required package: RSQLite Loading required package: RSQLite.extfuns Loading required package: gsubfn Loading required package: proto Loading required

Hi, I post this message to the general r-help list hoping anyone within a wider range have suggestions: There are three ways to integration R and postgres, especially on 64bit Microsoft windows Platform, 1. via RODBC package, which has 32 bit and 64 bit version for windows 2. via RPostgres interface, which only has 32bit version currently 3. via plr for Greenplum, which only supports a

Hi all, Please bear with me because I'm not all that familiar with R. I manage a research cluster that's running Red Hat 5.6 (64-bit), and we recently installed version 2.15.0 of R for some users. Here's how we built it: ./configure --prefix=/opt/shared/R/2.15.0 --with-tcltk --with-system-zlib --with-system-bzlib --with-system-pcre --with-lapack --enable-R-shlib When we ran