Coerce an object to an event hydrograph — as

Turn an object into an event hydrograph.

Usage

as_hydrograph(x, ...)

# S3 method for class 'data.frame'
as_hydrograph(x, ..., times_from, flows_from, unit = 1)

x: A data frame to coerce to a hydrograph.
...: Used for extensions to specific coercion methods.
times_from: Column name containing timings of the hydrograph change points, including the terminus times. Unquoted.
flows_from: Column name containing the discharge values corresponding to the timings in the times_from column; possibly unquoted.
unit: Conversion factor for the time values; single numeric. Useful if, for example, the timing is specified as a proportion of the total event time.

An event hydrograph, as in hydrograph(), made up of linearly interpolated discharge-timing pairs.

df <- data.frame(when = 0:3, flows = c(2, 5, 4, 2))
h <- as_hydrograph(df, times_from = when, flows_from = flows)
plot(h)