search for: cloumns

Hi, I want to change a single table field to UTF-8, but cant see a way of defining this in a migration. Does anyone know if there is a way, or if it has to be an sql snippet, how would I add that? Thanks Tony -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

Hi all, I'd like to do a multiplication between 2 matrices buy only want resulsts of cloumn 1 * column 1, column 2 * column 2 and so on. Now I do C <- diag(t(A) %*% B) Is there a bulit in way to do this? Thank you. [[alternative HTML version deleted]]

hello, i hav a prob in R lang. i want to do correlation of data frame 22810(gene) rows and 1436 colums(experiment) when i covert this file in csv or xls format it reads only 1024 cloumns. n when i do correlation of data mean 22810 *22810 matrix made in terminal then i export in csv or xls by write.table it will give me only 1024 columns rather than 22810 columns.wat i do plzzz help me... for this file what should the syntax of import and export... [[alternative HTML version delet...

Under Windows, I have used RODBC to connect to Excel spreadsheets as per the example below: library(RODBC); connect = odbcConnectExcel("testdata.xls"); query = "SELECT [data$.ethn], [data$.sex], [data$.age], [data$.height], [data$.weight], [label$.label] FROM [data$], [label$] WHERE [data$.ethn] = [label$.ethn];" data =

Dear all, I need to create a for-loop in which I can compute multiple histograms My code is the following : #singlefile includes huge csv file #I want to specify the binsize #I would like to compute in the for -loop the histograms numfiles <- length(singlefile) for (i in 1 :51) { binsize <- -20 :20/2 hist(singlefile(singlefile$GVC[singlefile$new_id==i]], break=seq(),

Dear all, I am trying to run a loop in my codes, but the software returns an error: "subscript out of bounds" I dont understand exactly why this is happenning. My codes are the following: rm(list=ls()) #remove almost everything in the memory set.seed(180185) nsim <- 10 mresultx <- matrix(-99, nrow=1000, ncol=nsim) mresultb <- matrix(-99, nrow=1000, ncol=nsim) N

Dear Members, I am working on Elastic net and using R package for that. I have two matrix. My response is a matrix of size 50X50 and predictor is also in same size. I want to extract only cloumns from the matrix and do the elastic net analysis then store them as a matrix. library(elasticnet) library(lars) XB<-matrix(rnorm(2500,0,1), ncol=50,nrow=50) y1<-matrix(rnorm(2500,0,1), ncol=50,nrow=50) en1<-enet(x=XB,y=y1[,1],lambda=1,normalize=TRUE,intercept=TRUE) # here I have used one...

Hi all, I am getting problem with "read.csv()" command the problem is I have one file which is saved in "ANSI" while I am trying to open with R-Project its opend and all the cloumn names are comming proper like for the command names(kk) "FILEID" "UNIQUEID" "LATESTFLG" "ACTIVEFLG" "PROJROLEID"

A client of mine has a ton of data stored in Excel spreadsheets. I''m building a web application for her (backed by a real db of course) and want to import all that data. Is there a library available to read data from Excel? Is there an easy way to upload the spreadsheets and then read the data? Thanks, Ken Kousen -- Kenneth A. Kousen, Ph.D. President Kousen IT, Inc.

Is there a way to estimate a nominal response model? To be more specific let's say I want to calibrate: \pi_{v}(\theta_j)=\frac{e^{\xi_{v}+\lambda_{v}\theta_j}}{\sum_{h=1}^m e^{\xi_{h}+\lambda_{h}\theta_j}} Where $\theta_j$ is a the dependent variable and I need to estimate $\xi_{h}$ and $\lambda_{h}$ for $h \in {1...,m}$. Thank you, Mauricio Romero Quantil S.A.S. Cel: 3112231150