Description Usage Arguments Value Examples
Estimated regional (or local) (1alpha)confidence intervals for an estimated quantile by using the annual Weissman estimator (W).
1 
x 
vector or matrix of annual observations. 
p 
a probability. Should be between 1k_j/n_j and 1, where n_j is the
sample length of the 
j 
quantile and parameter estimation for the jth station (jth column of 
alpha 
confidence level for confidence interval. 
... 
additional arguments, see RegioWeissman 
List of
ci
confidence interval.
quant
estimated quantile using Weissman's estimator.
1 2 3 4 5 6 7 8 9 10 11 12  library("evd")
# Seasonal observations of 80 years at one station:
x1 < rgev(80, 2, 1, 0.2) # observations from season 1
x2 < rgev(80, 3, 1, 0.3) # observations from season 2
x < seas2ann(x1, x2) # calculaes annual maxima of the two seasons
confInt_W(x=x, p=0.95, alpha=0.05)
# Seasonal observations of 100 years at 4 stations:
x1 < matrix(rgev(400, 2, 1, 0.3), ncol=4) # observations from season 1
x2 < matrix(rgev(400, 2, 1, 0.2), ncol=4) # observations from season 2
x < seas2ann(x1, x2) # calculaes annual maxima of the two seasons
confInt_W(x=x, j=2, p=0.95, alpha=0.05)

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