Quality and Reliability Methods - SAS

274 Recurrence Analysis Chapter 15
Fit Model
Select Fit Model from the platform red-triangle menu to produce the Recurrence Model Specification
window shown in Figure 15.12.
Figure 15.12 Recurrence Model Specification
You can select one of four models, with the following Intensity and Cumulative functions:
Power Nonhomogeneous Poisson Process
β
I(t) = --
θ
--
t
θ
β – 1
t
C(t) = --
θ
β
Proportional Intensity Poisson Process
I(t) = δt δ – 1 e γ
C(t) = t δ e γ
Loglinear Nonhomogeneous Poisson Process
I(t) = e γ+
δt
I(t)
C(t) = ---------------------
– I(0) e
= ------------------------
γ+
δt – e γ
δ δ