Re: [R] dse model setup help

2009-07-17 Thread Bob McCall
I reworked this using the innovations form and it seems to work. But none of the parameters were changed after estimation. summary lists: $counts function gradient 1 1 It guess it calculates the function but doesn't optimize the parameters. I just used: tfn.est <- estMaxLik(

Re: [R] dse model setup help

2009-07-17 Thread Bob McCall
I thought that I wanted the non-innovations form but wanted R and w(t) to be zero. I thought leaving out R would give that. What I'm trying to do is estimate a transfer function noise model. I noticed that you suggested to another person to use ARMA() and one can estimate the forecast function of

Re: [R] dse model setup help

2009-07-17 Thread Paul Gilbert
I think the problem here is that you seem to be trying to specify a non-innovations form model, for which both Q and R need to be specified, but you have only specified Q. The code guesses whether you are specifying an innovations model or an non-innovations model based on whether you specify

Re: [R] dse model setup help

2009-07-14 Thread spencerg
I can't identify the problem. The package author and maintainer, Paul Gilbert, might be able to help. Have you tried "debug(SS)"? This will allow you to walk through the function line by line looking at things, etc. This often produces enlightenment. Alternatively, have

[R] dse model setup help

2009-07-13 Thread Bob McCall
I tried to specify a model in dse1 but something isn't right. Anybody have any tips? model<-SS(F=f,G=g,H=h,Q=q,z0=z,P0=p) Error in locateSS(model$R, constants$R, "R", p, p, plist) : The dimension of something in the SS model structure is bad. > dim(f) [1] 5 5 > dim(g) [1] 5 1 > dim(h) [1] 1 5