Parameter_Conversion: Easy conversion of parameters between stabledist and stable

Description Usage Arguments Details Value Examples

Description

sd2s has stabledist parameter inputs and returns stable parameters. s2sd has stable parameter inputs and returns stabledist parameters.

Usage

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sd2s(alpha, beta, gamma, delta, pm = 1)

s2sd(tail, skew, disp, loc, pm = 1)

Arguments

alpha

the stabledist 'alpha'

beta

the stabledist 'beta'

gamma

the stabledist 'gamma'

delta

the stabledist 'delta'

pm

default 1; currently only value supported. the stabledist parameterization 'pm'

tail

the stable 'tail' analogous to 'alpha'

skew

the stable 'skew' analogous to 'beta'

disp

the stable 'disp' analogous to 'gamma'

loc

the stable 'loc' analogous to 'delta'

Details

This is a generic function: methods can be defined for it directly or via the Summary group generic. For this to work properly, the arguments ... should be unnamed, and dispatch is on the first argument.

Value

What you need. See examples.

Examples

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q <- -1
# nolan pm=1 parameters:
a <-  1.3
b <-  -0.4
c <-  2
d <-  0.75
s <- sd2s(alpha=a, beta=b, gamma=c, delta=d)
stable::pstable(q, tail = s$tail, skew=s$skew, disp = s$disp, loc  = s$loc)
stabledist::pstable(q, alpha=a, beta=b , gamma=c , delta=d, pm=1)
sd <- s2sd(tail = s$tail, skew=s$skew, disp = s$disp, loc  = s$loc)
stabledist::pstable(q, alpha=sd$alpha, beta=sd$beta , gamma=sd$gamma , delta=sd$delta, pm=1)

stable documentation built on May 2, 2019, 6:39 a.m.