as.fmx.Normal: Convert 'Normal' fit from 'mixsmsn' to fmx

In fmx: Finite Mixture Parametrization

Convert Normal fit from mixsmsn to fmx

Description

To convert Normal object (from package mixsmsn) to fmx class.

Usage

## S3 method for class 'Normal'
as.fmx(x, data, ...)

Arguments

x	'Normal' object, returned from smsn.mix with parameter family = 'Normal'
data	numeric vector
...	additional parameters, currently not in use

Value

Function as.fmx.Normal() returns an fmx object.

Note

smsn.mix does not offer a parameter to keep the input data, as of 2021-10-06.

Examples

library(mixsmsn)
# ?smsn.mix
arg1 = c(mu = 5, sigma2 = 9, lambda = 5, nu = 5)
arg2 = c(mu = 20, sigma2 = 16, lambda = -3, nu = 5)
arg3 = c(mu = 35, sigma2 = 9, lambda = -6, nu = 5)
set.seed(120); x = rmix(n = 1e3L, p=c(.5, .2, .3), family = 'Skew.t', 
  arg = list(unname(arg1), unname(arg2), unname(arg3)))

# Normal
class(m2 <- smsn.mix(x, nu = 3, g = 3, family = 'Normal', calc.im = FALSE))
mix.hist(y = x, model = m2)
m2a = as.fmx(m2, data = x)
hist(x, freq = FALSE)
curve(dfmx(x, dist = m2a), xlim = range(x), add = TRUE)

fmx documentation built on April 3, 2025, 7:09 p.m.