lfstat (version 0.9.12)

seasratio: Seasonality Ratio

Description

Calculates the seasonality ratio for two seasons.

Usage

seasratio(lfobj,
          breakdays,
          Q = 95)

Value

The seasonality ratio.

Arguments

lfobj

An object of class "lfobj"

breakdays

One or two dates defining the summer/winter season

Q

Which quantile to use (standard = Q95)

Author

Daniel Koffler and Gregor Laaha

Details

If 'breakdays' is a single day, e.g. "01/06", the start of the hydrological year is taken as the second break day. If other seasons are to be specified, a vector of two break days is needed.

References

Laaha, G. and Bl\"oschl, G. (2006), Seasonality indices for regionalizing low flows. Hydrol. Process., 20

See Also

seasindex

Examples

data(ngaruroro)

# Start of the hydrological year (01/12) is taken as second break day
seasratio(ngaruroro, breakdays = "01/07")

# Two breakdays
seasratio(ngaruroro, breakdays = c("01/03","01/09"))