qua {lmomPi}

Generic function for qua...: probabilily distribution fitting with L-Moments

Description

Generic function for qua...: probabilily distribution fitting with L-Moments

Usage

qua(
  para,
  f,
  probability_distribution_attrname = "probability_distrib",
  distrib = NA,
  ...
)

Arguments

f, para, ...

L-moments and further parameters for qua...

probability_distribution_attrname

attribute name for probability distribution

distrib

character string indicating the probability distribution, it can be used in case para has no attributes. Default is NA and distribution info are all passed through para.

Value

A vector of quantiles. It is a list of vectors of quantiles in case of several probability parametric distribution functions (i.e. para is a list and length(para)>1).

See Also

pel,quaexp,quagam,quagev,quaglo,quagpa,quagno,quagum,

quakap,qualn3,quanor,quape3, quawak,quawei

Examples

# Sample L-moments of Ozone from the airquality data
data(airquality)
lmom <- samlmu(airquality$Ozone,nmom=6)

distrib <- c("exp","gam","gev","glo","gpa","gno","gum","kap","ln3","nor",
	"pe3","wak","wei")

para_list <- pel(distrib=distrib,lmom=lmom)
f <- (1:10)/10
qua_list <- qua(para=para_list,f=f)

qua_gam <- qua(para=para_list$gam,f=f)
qua_gam2 <- qua(para=as.vector(para_list$gam),f=f,distrib="gam")

if (any(qua_gam!=qua_gam2,na.rm=TRUE)) stop("Any possible errors after  0.6.3 package updates!")