Pseudo-data

From DEBwiki
Jump to: navigation, search
AmP estimation
Concepts

Data and completeness
Parameter estimation
Goodness-of-fit: SMSE / MRE
AmP Literature

Practice - essentials

Starting an estimation for a new species
Setting initial parameter values
Setting weight coefficients
Computing implied properties
Submitting to the collection

Practice - extra modules
Code specification
User-defined files: run, mydata, pars_init, predict
Data: Zero-variate, Univariate, Pseudo-data

Typified models
Estimation options

Apart from the real data, the AmP procedure makes use of pseudo-data. (AmP data types.) Pseudo-data is a set of fixed (functions of) parameter values for a generalized animal species (Kooijman 2010, Lika et al 2011) that is treated as data.

The following table presents pseudo-data values used by default in the AmP procedure. In the mydata file, current values can be modified by the user, weight coefficients can be set to zero if the user chooses to not include pseudo-data in the estimation and additional pseudo-data can be considered.

Code Value Unit Description
v 0.02 cm/d energy conductance
kap 0.8 / allocation fraction to soma
kap_R 0.95 / reproduction efficiency
p_M 18 J/d.cm^3 volume-specific somatic maintenance costs
k_J 0.002 1/d maturity maintenance rate coefficient
kap_G 0.8 / growth efficiency