[R] building data object on iteration

[Fred J.]

Hello
I need help, few days tying to work this out but
unable to find examples. "alos would appricate
direction on how to find exmples"
getting the file name "without the extension" into a
character vector.
for (i in dir("c:/data/")){
    filename <- c(filename,sub("([^.]+)(\\..+)","\\1",
i))
}
Error: Object "filename" not found
and I understand why the error but cann't find a way
to fix it.

thanks