loopevd (version 1.0.2)

evd_params: Function to return the EVD (Gumbel or GEV) parameters as a vector.

Description

Function to return the EVD (Gumbel or GEV) parameters as a vector.

Usage

evd_params(
  x,
  evd_mod_str,
  nsloc = NULL,
  empty_evd_params,
  ntries = 3,
  silent = FALSE,
  returncs = TRUE
)

Value

a vector of estimate, var.cov, AIC, centered and scaled values

Arguments

x

numeric vector of data to be fitted.

evd_mod_str

either a string "fgumbel", "fgumbelx" or "fgev" from the extreme value distribution (evd) in the evd package

nsloc

A data frame with the same number of rows as the length of x, for linear modelling of the location parameter. The data frame is treated as a covariate matrix (excluding the intercept). A numeric vector can be given as an alternative to a single column data frame.

empty_evd_params

A preallocated vector or array used to store the return value when fitting fails

ntries

number of tries to fit the evd

silent

logical: should the report of error messages be suppressed?

returncs

logical: should the centered and scaled values be returned

Examples

# Ten records of 20 random data generated from the fgumbel EVD
am = lapply(1:10, function(x) evd::rgumbel(20))
tab = as.data.frame(t(sapply(am,function(x) evd_params(x,"fgumbel"))))