ssdtools (version 0.3.7)

ssd_hc: Hazard Concentration

Description

Gets concentrations that protect specified percentages of species.

Usage

ssd_hc(x, ...)
# S3 method for list
ssd_hc(x, percent = 5, hc = 5, ...)
# S3 method for fitdist
ssd_hc(
  x,
  percent = 5,
  hc = 5,
  ci = FALSE,
  level = 0.95,
  nboot = 1000,
  parallel = NULL,
  ncpus = 1,
  ...
)
# S3 method for fitdistcens
ssd_hc(
  x,
  percent = 5,
  hc = 5,
  ci = FALSE,
  level = 0.95,
  nboot = 1000,
  parallel = NULL,
  ncpus = 1,
  ...
)
# S3 method for fitdists
ssd_hc(
  x,
  percent = 5,
  hc = 5,
  ci = FALSE,
  level = 0.95,
  nboot = 1000,
  parallel = NULL,
  ncpus = 1,
  average = TRUE,
  ic = "aicc",
  ...
)
# S3 method for fitdistscens
ssd_hc(
  x,
  percent = 5,
  hc = 5,
  ci = FALSE,
  level = 0.95,
  nboot = 1000,
  parallel = NULL,
  ncpus = 1,
  average = TRUE,
  ic = "aic",
  ...
)

Arguments

x

The object.

...

Unused.

percent

A numeric vector of percentages.

hc

A numeric vector of percentages.

ci

A flag specifying whether to estimate confidence intervals (by parametric bootstrapping).

level

A number between 0 and 1 of the confidence level.

nboot

A count of the number of bootstrap samples to use to estimate the se and confidence limits.

parallel

A string specifying the type of parallel operation to be used ('no', 'snow' or 'multicore').

ncpus

A count of the number of parallel processes to use.

average

A flag specifying whether to model average the estimates.

ic

A string specifying which information-theoretic criterion ('aic', 'aicc' or 'bic') to use for model averaging .

Value

A data frame of the percent and concentrations.

Methods (by class)

• list: Hazard Percent list of distributions

• fitdist: Hazard Percent fitdist

• fitdistcens: Hazard Percent fitdistcens

• fitdists: Hazard Percent fitdists

• fitdistscens: Hazard Percent fitdistcens

Examples

# NOT RUN {
ssd_hc(list("lnorm" = NULL))
ssd_hc(list("lnorm" = list(meanlog = 2, sdlog = 1)))
ssd_hc(boron_lnorm, c(0, 1, 30, Inf))
ssd_hc(fluazinam_lnorm, c(0, 1, 30, Inf))
ssd_hc(boron_dists, c(0, 1, 30, Inf))
ssd_hc(fluazinam_dists, c(0, 1, 30, Inf))
# }