Qxx | R Documentation |
Calculates the quantiles of an object of class 'lfobj'
.
Qxx(lfobj, Qxx, year = "any", monthly = FALSE, yearly = FALSE, breakdays = NULL, na.rm = TRUE) Q95(lfobj, year = "any", monthly = FALSE, yearly = FALSE, breakdays = NULL, na.rm = TRUE) Q90(lfobj, year = "any", monthly = FALSE, yearly = FALSE, breakdays = NULL, na.rm = TRUE) Q70(lfobj, year = "any", monthly = FALSE, yearly = FALSE, breakdays = NULL, na.rm = TRUE)
lfobj |
An object of class |
Qxx |
The quantile to calculate, e.g. 70 would refer to Q70 |
year |
The year for which the Q95 should be computed. If |
monthly |
logical - Should the Q95 be calculated separately for every month?. |
yearly |
logical - If TRUE, the Q95 is calculated for each hydrological year separately. |
breakdays |
A vector of break days if the Q95 should be calculated for different seasons. |
na.rm |
Should NAs be ignored? |
If breakdays
is a single day, e.g. "01/06", the start of the hydrological year is taken as the second break day. If more than two seasons are to be specified, a vector of all break days is needed.
A length one vector giving the Q95 for the whole series or the specified year. If yearly is true, a vector of the annual Q95s is returned. If break days are specified, the values are separated per season.
Daniel Koffler and Gregor Laaha
Gustard, A. & Demuth, S. (2009) (Eds) Manual on Low-flow Estimation and Prediction. Operational Hydrology Report No. 50, WNO-No. 1029, 136p.
MAM
data(ngaruroro) Q95(ngaruroro) Q95(ngaruroro, breakdays = c("01/11","01/05")) Q95(ngaruroro, year = 1991) # Calculate Q99 Qxx(ngaruroro, Qxx = 99)
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