Re: [R] How to select the column header with \Sexpr{}

Hi Felipe, The problem has nothing to do with Sweave or \Sexpr. The problem is that by the time you call \Sexpr report is a matrix, and you cannot access the column names of a matrix with names(). You need to use colnames() or convert the matrix to a data.frame. Perhaps a true useR can write R

Re: [R] How to select the column header with \Sexpr{}

Thanks Izta: I see your point, then I should extract the column names when the dataset is first read because is a dataframe:  report - structure(list(Date = c(3/12/2010, 3/13/2010, 3/14/2010,  3/15/2010), Run1 = c(33 (119 ? 119), n (0 ? 0), 893 (110 ? 146),  140 (111 ? 150)), Run2 = c(33 (71 ?

Re: [R] How to select the column header with \Sexpr{}

Hi Felipe, See in line below. On Tue, Jul 13, 2010 at 11:04 AM, Felipe Carrillo mazatlanmex...@yahoo.com wrote: Thanks Izta: I see your point, then I should extract the column names when the dataset is first read because is a dataframe: That might work, but it's definitely not how I would do

[R] How to select the column header with \Sexpr{}

Hi: Since I work with a few different fish runs my column headers change everytime I start a new Year. I have been using \Sexpr{} for my row and columns and now I am trying to use with my report column headers. \Sexpr{1,1} is row 1 column 1, what can I use for headers? I tried \Sexpr{0,1} but

Re: [R] How to select the column header with \Sexpr{}

On 12/07/2010 5:10 PM, Felipe Carrillo wrote: Hi: Since I work with a few different fish runs my column headers change everytime I start a new Year. I have been using \Sexpr{} for my row and columns and now I am trying to use with my report column headers. \Sexpr{1,1} is row 1 column 1, what

Re: [R] How to select the column header with \Sexpr{}

Thanks for the quick reply Duncan. I don't think I have explained myself well, I have a dataset named report and my column headers are run1,run2,run3,run4 and so on. I know how to access the data below those columns with \Sexpr{report[1,1]} \Sexpr{report[1,2]} and so on, but I can't access my

Re: [R] How to select the column header with \Sexpr{}

On Jul 12, 2010, at 5:45 PM, Felipe Carrillo wrote: Thanks for the quick reply Duncan. I don't think I have explained myself well, I have a dataset named report and my column headers are run1,run2,run3,run4 and so on. I know how to access the data below those columns with

Re: [R] How to select the column header with \Sexpr{}

I had tried that earlier and didn't work either, I probably have \Sexpr in the wrong place. See example: Column one header gets blank: \documentclass[11pt]{article} \usepackage{longtable,verbatim,ctable} \usepackage{longtable,pdflscape} \usepackage{fmtcount,hyperref} \usepackage{fullpage}