HI, Sorry, there was a mistake as I didn't properly looked at the output you wanted.
a_tableNew<- data.matrix(matrix(0,3,3)) a_tableNew[2:3,2:3]<-paste0(sprintf("%.2f",as.numeric( a_table[,seq(2,5,2)][grep("\\d+",a_table[,seq(2,5,2)])])),"$\\pm$",sprintf("%.2f",as.numeric( a_table[,seq(3,5,2)][grep("\\d+",a_table[,seq(2,5,2)])]))) a_tableNew[grep("\\b0\\b",a_tableNew)]<- a_table[!grepl("\\d+",a_table)][!grepl("error",a_table[!grepl("\\d+",a_table)])] a_tableNew # [,1] [,2] [,3] #[1,] "Fruits" "Adam" "steve" #[2,] "apples" "17.10$\\pm$2.22" "3.20$\\pm$1.10" #[3,] "oranges" "3.10$\\pm$2.55" "18.10$\\pm$3.20" print(xtable(a_tableNew),sanitize.text.function=identity) #If you wanted the column names as "Fruits", "Adam" etc, colnames(a_tableNew)<- a_tableNew[1,] a_tableNew<- a_tableNew[-1,] print(xtable(a_tableNew),sanitize.text.function=identity) % latex table generated in R 3.0.1 by xtable 1.7-1 package % Thu Sep 12 22:42:58 2013 \begin{table}[ht] \centering \begin{tabular}{rlll} \hline & Fruits & Adam & steve \\ \hline 1 & apples & 17.10$\pm$2.22 & 3.20$\pm$1.10 \\ 2 & oranges & 3.10$\pm$2.55 & 18.10$\pm$3.20 \\ \hline \end{tabular} \end{table} A.K. ----- Original Message ----- From: arun <smartpink...@yahoo.com> To: Sachinthaka Abeywardana <sachin.abeyward...@gmail.com> Cc: R help <r-help@r-project.org> Sent: Thursday, September 12, 2013 10:21 PM Subject: Re: [R] xtable use plus minus Hi, Also: a_table[grep("\\d+",a_table)]<-paste0(sprintf("%.2f",as.numeric(a_table[grep("\\d+",a_table)])),"$\\pm$") # 2 d.p. print(xtable(a_table),sanitize.text.function=identity) A.K. ----- Original Message ----- From: arun <smartpink...@yahoo.com> To: Sachinthaka Abeywardana <sachin.abeyward...@gmail.com> Cc: R help <r-help@r-project.org> Sent: Thursday, September 12, 2013 9:29 PM Subject: Re: [R] xtable use plus minus Hi, Try: a_table[grep("\\d+",a_table)]<- paste0(a_table[grep("\\d+",a_table)],"$\\pm$") library(xtable) print(xtable(a_table),sanitize.text.function=identity) % latex table generated in R 3.0.1 by xtable 1.7-1 package % Thu Sep 12 21:26:45 2013 \begin{table}[ht] \centering \begin{tabular}{rlllll} \hline & 1 & 2 & 3 & 4 & 5 \\ \hline 1 & Fruits & Adam & errorA & steve & errorS \\ 2 & apples & 17.1$\pm$ & 2.22$\pm$ & 3.2$\pm$ & 1.1$\pm$ \\ 3 & oranges & 3.1$\pm$ & 2.55$\pm$ & 18.1$\pm$ & 3.2$\pm$ \\ \hline \end{tabular} \end{table} A.K. ----- Original Message ----- From: Sachinthaka Abeywardana <sachin.abeyward...@gmail.com> To: "r-help@r-project.org" <r-help@r-project.org> Cc: Sent: Thursday, September 12, 2013 8:46 PM Subject: [R] xtable use plus minus I am using a similar dataset to the following: a= c("Fruits", "Adam","errorA", "steve", "errorS", "apples", 17.1,2.22, 3.2,1.1, "oranges", 3.1,2.55, 18.1,3.2 ) a_table=data.matrix(t(matrix(a,nrow=5))) I would like to plus minus every second column starting from errorA (using xtable/ hmisc) example output (ignoring decimals): Fruits && Adam && Steve \\ Apples && 17\pm 2 && 3 \pm 1 \\ Oranges && 3\pm 2 && 18 \pm 3\\ Additionally is there any way I can have just to 2 d.p.? Thanks, Sachin [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.