Fit BCANZ Distributions

Fits distributions using settings adopted by BC, Canada, Australia and New Zealand for official guidelines.

Usage

ssd_fit_bcanz(
  data,
  left = "Conc",
  ...,
  dists = ssd_dists_bcanz(),
  rescale = FALSE,
  silent = FALSE
)

Arguments

data

A data frame.

left

A string of the column in data with the concentrations.

...

Unused.

dists

A character vector of the distribution names.

rescale

A flag specifying whether to leave the values unchanged (FALSE) or to rescale concentration values by dividing by the geometric mean of the minimum and maximum positive finite values (TRUE).

silent

A flag indicating whether fits should fail silently.

Value

An object of class fitdists.

See also

ssd_fit_dists()

Other BCANZ: ssd_hc_bcanz(), ssd_hp_bcanz()

Examples

ssd_fit_bcanz(ssddata::ccme_boron)
#> Distribution 'gamma'
#>   scale 25.1268
#>   shape 0.950179
#> 
#> Distribution 'lgumbel'
#>   locationlog 1.92263
#>   scalelog 1.23224
#> 
#> Distribution 'llogis'
#>   locationlog 2.62628
#>   scalelog 0.740426
#> 
#> Distribution 'lnorm'
#>   meanlog 2.56165
#>   sdlog 1.24154
#> 
#> Distribution 'lnorm_lnorm'
#>   meanlog1 0.949483
#>   meanlog2 3.20102
#>   pmix 0.283968
#>   sdlog1 0.554465
#>   sdlog2 0.768862
#> 
#> Distribution 'weibull'
#>   scale 23.514
#>   shape 0.9661
#> 
#> Parameters estimated from 28 rows of data.