[R] save output of loop

[jim holtman]

try this:

file_s <- list.files(path = ".", pattern = "v2.0.2.txt", all.files = FALSE,
                 full.names = FALSE, recursive = FALSE,
                 ignore.case = FALSE)
result <- do.call(rbind, lapply(file_s, function(.file){
    data <- read.table(.file, header=TRUE)
    data.frame(lat  = data[,7] # latitude
            , lon = data[,8] # longitude
            , gas  = data[,45] # gas
            , time.s   = data[,5] # time
            , stringsAsFactors = FALSE
            )
    }))



On Tue, Feb 14, 2012 at 5:07 AM, uday <uday_143_4u at hotmail.com> wrote:
> I have some data files e.g 100 . and after for loop I would like to save all
> data in one single data frame
>
> file_s <- list.files(path = ".", pattern = "v2.0.2.txt", all.files = FALSE,
>                  full.names = FALSE, recursive = FALSE,
>                  ignore.case = FALSE)
> for (i in 1:100){
>  data     = read.table(file_s[i],header=TRUE)
>  lat  = data[,7] # latitude
>  lon = data[,8] # longitude
>  gas  = data[,45] # gas
>  time.s   = data[,5] # time
> }
>
> How I should get all these 100 files variable in to single data frame ?
>
>
> --
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>
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-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.