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Set a WaterLevelDataFrame's slot time

Source: R/WaterLevelDataFrame-methods.R
setTime.Rd

A function to set the slot time of an object of class WaterLevelDataFrame.

Usage 

setTime(x) <- value

# S4 method for class 'WaterLevelDataFrame,POSIXct'
setTime(x) <- value

# S4 method for class 'WaterLevelDataFrame,POSIXlt'
setTime(x) <- value

# S4 method for class 'WaterLevelDataFrame,Date'
setTime(x) <- value

Arguments

x

an object of class WaterLevelDataFrame.

value

a new value of class c("POSIXct", "POSIXt") for the time slot. value has to have a length of one and has to be in the temporal range between 1960-01-01 00:00:00 CET and now (Sys.time() or NA.

Value

The function above sets a new value for the slot time and returns an object of class WaterLevelDataFrame. Since time is a slot relevant for the computation of the data.frame column w, w is set to NA and needs to be recomputed by functions like waterLevel or waterLevelPegelonline.

See also

getTime-method

Examples 

wldf <- WaterLevelDataFrame(river   = "Elbe",
                            time    = as.POSIXct("2016-12-21"),
                            station = seq(257, 262, 0.1))
setTime(wldf) <- as.POSIXct("2016-12-22")