Date format
docw...@gmail.com
Hi everyone
I have a problem with the date format, I am using the% d-% m-% Y format with chron but the latter converts them to m / d / Y format, and that causes me errors afterwards.
> library(hydromad)
> setwd(system.file("essai4", package = "hydromad"))
> file.show("pqt_10-2000.csv")
> pqtdat <- read.table("pqt_10-2000.csv", sep = ",")
> names(pqtdat) <- c("Date","P", "Q", "E")
> datetimes = as.character(pqtdat$Date)
> library(chron)
> Date_dt = as.chron(as.POSIXct(datetimes, format="%Y-%m-%d %H:%M", usetz = FALSE))
> head(Date_dt)
[1] (09/22/00 22:00:00) (09/22/00 23:00:00) (09/23/00 00:00:00) (09/23/00 01:00:00) (09/23/00 02:00:00) (09/23/00 03:00:00) [here is the error i am talking to]
>library(zoo)
>pqtdat_zoo = zoo(pqtdat[, 2:4], order.by=Date_dt)
>pqtdat_zoo$Q = convertFlow(pqtdat_zoo$Q, from="m3/s", to="mm / hour", area.km2 = 1957)
>Sefra = zoo(pqtdat_zoo, frequency=24)
>ts2000s <- window(Sefra, start = "2000-10-24 00:00",
end = "2000-10-24 23:00")
Error in convert.dates(dates., format = fmt, origin. = origin.) :
format m/d/y may be incorrect
De plus : Warning message:
In unpaste(dates., sep = fmt$sep, fnames = fmt$periods, nfields = 3) :
wrong number of fields in entry(ies) 1
best regards
