Re: [R] gradually switching regression

2009-06-24 Thread Vito Muggeo (UniPa)
Hi, Although Bacon&Watts (1971) assume a transition, the aim is to estimate the breakpoint where the linear relationship changes. The start- and end-point of the transition phase are not parameters to estimate ; it is a trick to estimate the model. As a possible alternative, you could have a

[R] gradually switching regression

2009-06-23 Thread Benjamin Volland
Hello, I'm trying to find an algorithm to estimate a switching regression model based on the 1990 Economics Letters paper by Ohtani/Kakimoto/Abe or the earlier version from 1985 (Ohtani/Katayama, Economic Studies Quarterly; assuming as a transition path a polynomial of order 1). I found an id