On Mon, Aug 16, 2010 at 8:00 PM, skan <juanp...@gmail.com> wrote:
>
> I've just seen that sep sep cannot be "," because there are not commas in
> the file.
> but I want it to take the first and second columns (date and time) as a
> whole, the index.
>
In the latest version of zoo index.column= can be a list.
index.column = list(1:2), which can be abbreviated to just
index.column = 1:2, would pass the first two columns to FUN as a
single argument consisting of a two column matrix whereas index.column
= list(1, 2) would pass them as separate arguments. Using the latter:
Lines <- "date time value
1999-11-11 10:20:00 1.2222"
library(zoo)
library(chron)
# z <- read.zoo("myfile.dat", index = list(1, 2), header = TRUE,
z <- read.zoo(textConnection(Lines), index = list(1, 2), header = TRUE,
FUN = function(date, time) as.chron(paste(date, time)))
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