estimating parameters of a model

[Myo]

Hi,

I am about to conduct an experiment of temperature dependent development of an insect. Here I would like to know is if I could be able to find the parameters of the models what I will use in data analysis with R program.

I have found some other softwares that can be used for parameter estimation but liscence would be needed, not open source. So I prefer to use R langauge if it is reliable for my data analysis.

Thanks in advance,
Myo

[Özgür Asar]

You can be sure that it is reliable!

Ozgur

[David Winsemius]

On Jun 28, 2012, at 10:45 PM, Myo wrote:

> Hi,
>
> I am about to conduct an experiment of temperature dependent  
> development of
> an insect. Here I would like to know is if I could be able to find the
> parameters of the models what I will use in data analysis with R  
> program.
>
> I have found some other softwares that can be used for parameter  
> estimation
> but liscence would be needed, not open source. So I prefer to use R  
> langauge
> if it is reliable for my data analysis.

I do not think that this is sufficiently specific to admit much of an  
answer. The Task Views at CRAN may help you:

http://cran.r-project.org/web/views/

Particular possibilities

ChemPhys Chemometrics and Computational Physics
DifferentialEquations Differential Equations
Environmetrics Analysis of Ecological and Environmental Data
Pharmacokinetics Analysis of Pharmacokinetic Data
>


--

David Winsemius, MD
West Hartford, CT

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[Myo]

Thanks  a lot for your wonderful reply. So would you like to enlighten me how to write R-coding for that parameter estimation for a couple of models?

Suppose that I have the data of the development rate of an insect on different temperature regimes. I would like to find the parameters of those models and I would like to know which model is the best fitted to my data. The models I am going to use in my analysis are
1) Lactin 1 (Lactin et al. (1995)
2) Lactin 2 (Lactin et al. (1995)
3) Longan 6 (Logan et al. (1976)

#Suppose: the mean development times (day) of egg stage at different temperature regimes (12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30, 32.5, 35 degree) are 17.82, 14.44, 9.94, 7.23, 4.57, 3.61, 3.00, 2.04, 2.01, 2.00 days. There will be other data for other life stages. Now please show me a way how to do for my problem with above example.

Sorry for not being able to write the models here because of difficult to write for me. I hope you could help me for my experiment.
I have no words to express my sincere thanks to you all. I will really enjoy your kindness. Thank you so much indeed.
Sincerely,
Myo

[Myo]

Thanks a lot for your wonderful reply. So would you like to enlighten me how to write R-coding for that parameter estimation for a couple of models? Suppose that I have the data of the development rate of an insect on different temperature regimes. I would like to find the parameters of those models and I would like to know which model is the best fitted to my data. The models I am going to use in my analysis are 1) Lactin 1 (Lactin et al. (1995) 2) Lactin 2 (Lactin et al. (1995) 3) Longan 6 (Logan et al. (1976) #Suppose: the mean development times (day) of egg stage at different temperature regimes (12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30, 32.5, 35 degree) are 17.82, 14.44, 9.94, 7.23, 4.57, 3.61, 3.00, 2.04, 2.01, 2.00 days. There will be other data for other life stages. Now please show me a way how to do for my problem with above example. Sorry for not being able to write the models here because of difficult to write for me. I hope you could help me for my experiment. I have no words to express my sincere thanks to you all. I will really enjoy your kindness. Thank you so much indeed. Sincerely, Myo