weibull: Single Weibull functions

In fzwaeustc/pcrfn: Peng's Collection of R Functions at Nielsen

Description

weibull is the first Weibull function, and weib2 is the second weibull function reversed plus (duration+1) shift.

Usage

weibull(x, a = 0.14, b = 0.46)
weib2(x, a = 0.14, b = 0.46)

Arguments

x	Minutes, or any x.
a	The lambda in the Weibull function.
b	The gamma in the Weibull function.

Details

The Weibull function is officially defined as

S(t)=e^{-λ t^{γ}}

Here both functions have position shifts. Check the codes for details.

See Also

double.weibull, weibull

Examples

# weibull is currently defined as
function (x, a = 0.14, b = 0.46) 
{
    exp(-a * (x - 1)^b)
  }
  
## weib2 is currently defined as
function (x, a = 0.14, b = 0.46) 
{
    exp(-a * (x + 1)^b)
  }

fzwaeustc/pcrfn documentation built on May 16, 2019, 4:06 p.m.