hydrograph: Hydrograph

In lfstat: Calculation of Low Flow Statistics for Daily Stream Flow Data

Description

Plots the hydrograph for a given period.

Usage

hydrograph(lfobj, startdate = NULL, enddate = NULL, amin = FALSE,...) 

Arguments

lfobj	An object of class "lfobj"
startdate	Begin of hydrograph, date or hydrological year
enddate	End of hydrograph, date or hydrological year
amin	logical, mark annual minima?
...	Additional arguments handed to "plot" - please note that some changes e.g. tickmarks on x-axis are not possible

Details

Startdate and enddate can be NULL (first/last date in lfobj), a date in format "dd/mm/yyyy" (e.g. "01/10/1971") or a year yyyy (e.g 1961).

Value

Plot of hydrograph

Author(s)

Daniel Koffler and Gregor Laaha

References

Gustard, A. & Demuth, S. (2009) (Eds) Manual on Low-flow Estimation and Prediction. Operational Hydrology Report No. 50, WMO-No. 1029, 136p.

See Also

bfplot

Examples

data(ngaruroro)
#Full period
hydrograph(ngaruroro)
#Hydrological year 1981 and 1982 with annual minima
hydrograph(ngaruroro, startdate = 1981, enddate = 1982, amin = TRUE)
#From 01/01/1981 to 31/03/1981
hydrograph(ngaruroro, startdate = "01/01/1981", enddate = "31/03/1981")
#Log - yaxis
hydrograph(ngaruroro, startdate = "01/01/1981", enddate =
"31/03/1981",log = "y")

Example output

Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric

Loading required package: lmom
Loading required package: lattice

lfstat documentation built on May 2, 2019, 6:07 p.m.