Re: [R] KalmanSmooth problem

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Thu 08 Jul 2004 - 06:09:43 EST

Spencer Graves wrote:

> Hi, Uwe:  "KalmanSmooth" is in the "stats" package in R 1.9.1.  R is 
> moving so fast that it is impossible to keep current with all parts of 
> it.  Best Wishes, Spencer Graves

Uhhhh .... thanks, Spencer. My apologies to Pieter.

Indeed, looks like I forgot to upgrade my R version on the machine at home. I only did so in my office and on my laptop.

Uwe

> Uwe Ligges wrote:
> 

>> Hazenberg21, Pieter wrote:
>>
>>> Hello,
>>> In R I am trying to use Kalman filtering to find a solution for an
>>> hydrological problem. With Kalman Filtering I want to estimate the
>>> discharge comming from three storage bassins. I have programmed a
>>> function in R which can run KalmanSmooth. When I'm asking for the
>>> function and putting in values, R detects the following error: "Error
>>> in as.vector(data) : Argument "S1" is missing, with no default".
>>> I have try to find a solution for this error in the R help file, and
>>> in different manuals, but I can't find it. Please help me find a
>>> solution.
>>> Question: What does R mean with "S1" and what am I doing wrong?
>>> Here is the way I have programmed the hydrological problem in R.
>>>
>>>> discharge=read.table(file="C:/Program
>>>> Files/R/rw1090/discharge.txt",header=T)
>>>> deb=discharge[,1]
>>>> deb
>>>
>>>
>>>
>>> [1] 11.545313 8.045465 5.670868 4.044584 2.919311 2.306668
>>> 2.940956
>>> [8] 4.238159 5.017374 3.818236 2.928805 2.262183 1.757765
>>> 1.633945
>>> [15] 2.295130 3.454054 4.035224 3.193967 2.533181 2.012406
>>> 1.600836
>>> [22] 1.652155 2.428678 3.642827 4.019545 3.209473 2.563617
>>> 2.048347
>>> [29] 1.637041 1.828952 2.757842 4.050821 4.147013 3.316503
>>> 2.652490
>>> [36] 2.121535 1.696934 2.027763 3.107366 4.429670 4.160178
>>> 3.327950
>>> [43] 2.662237 2.129710 1.703717 2.158095 3.337039 4.582359
>>> 3.905901
>>> [50] 3.124690 2.499732 1.999772 1.599810 2.130893 3.302622
>>> 4.336081
>>> [57] 3.468857 2.775081 2.220062 1.776048 1.560859 2.169537
>>> 3.348081
>>> [64] 4.170552 3.336440 2.669151 2.135320 1.708256 1.648859
>>> 2.374217
>>> [71] 3.624091 4.248563 3.398850 2.719080 2.175264 1.740211
>>> 1.826122
>>> [78] 2.704749 4.056438 4.437309 3.549847 2.839878 2.271902
>>> 1.817522
>>> [85] 2.053994 3.107875 4.548436 4.600601 3.680481 2.944385
>>> 2.355508
>>> [92] 1.884406 2.273248 3.490148 4.949898 4.584409 3.667527
>>> 2.934022
>>> [99] 2.347217 1.877774
>>>
>>>> Kalm = function(x,O1,O2,O3,T1,T2,T3,T4,T5,t,ga){
>>>
>>>
>>>
>>> +
>>> t=array(c(1+ga*O1+t/O1*(-(1/T2)-(1/T3)-(1/T1)),t/O1*(1/T2),t/O1*(1/T3),
>>> + t/O2*(1/T2),1+ga*O2+t/O2*(-(1/T2)-(1/T4)),t/O2*(1/T4),
>>> +
>>> t/O3*(1/T3),t/O3*(1/T4),1+ga*O3+t/O3*(-(1/T3)-(1/T4)-(1/T5))),dim=c(3,3));
>>>
>>> + h=0.5;
>>> + r=array(c(1,0,0,0,1,0,0,0,1),dim=c(3,3));
>>> + q=1;
>>> + v=r*q*t(r);
>>> + a=10.14286;
>>> + z=array(c((1/T1),0,0,0,0,0,0,0,(1/T5)), dim=c(3,3));
>>> + p=array(c(1,0,0,0,1,0,0,0,1),dim=c(3,3));
>>> + pn=array(c(1,0,0,0,1,0,0,0,1),dim=c(3,3));
>>> + kal=KalmanSmooth(x, list(T=t,Z=z,h=h,V=v,a=a,P=p,Pn=pn), nit=0)
>>> + kal}
>>>
>>>
>>>> Kalm(deb,4,.5,5,.7,.1,2,3,4,1,0.65)
>>>
>>>
>>>
>>> Error in as.vector(data) : Argument "S1" is missing, with no default
>>>
>>> First I thought I had to make a timeserie of deb. But this doesn't
>>> change the problem.
>>> Lot's of thanks trying to help me.
>>
>>
>>
>> a) Please tell us R Version and OS (OK, implicitly done that we are
>> talking about R-1.9.0 on Windows).
>> b) Please tell us which packages you are using (I don't know
>> KalmanSmooth(), for example).
>> c) Please try to specify reproducible examples.
>>
>> Conclusion for a-c): Please read the posting-guide.
>>
>> My hint is to try to debug yourself, at least *try*, starting eith
>> calling traceback() right after the error appeared, in order to get a
>> guess where the error really happens. Then look at the data that is
>> passed to the function - and I'm pretty sure you will get at least an
>> idea what goes wrong.
>>
>> Uwe Ligges
>>
>>
>>
>>
>>
>>> Best regards,
>>> Pieter Hazenberg
>>> Student Hydrology and Watermanagement
>>> Wageningen University
>>> The Netherlands
>>>
>>> ______________________________________________
>>> R-help@stat.math.ethz.ch mailing list
>>> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide!
>>> http://www.R-project.org/posting-guide.html
>>
>>
>>
>> ______________________________________________
>> R-help@stat.math.ethz.ch mailing list
>> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide!
>> http://www.R-project.org/posting-guide.html
> 
> 
>

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https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jul 08 06:16:29 2004

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