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Difference between revisions of "Estimating Model Parameters from External Data"
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dR/dt = γI - αR | dR/dt = γI - αR | ||
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| + | When rearranged by simple algebra, these four equations turn into the following: | ||
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| + | (1/I)(dlnS/dt) = α(R/(SI)) - β | ||
= Implementation = | = Implementation = | ||
Revision as of 17:32, 21 July 2008
Contents
Introduction
STEM provides a way for users to input data from CSV Files and Estimated model parameters in, for example, an SIR or SEIR model so that model will best approximate the input data.
Mathematics
SI Models and Parameter Estimation
SIR Models and Parameter Estimation
SEIR Models and Parameter Estimation
There are four equations with four parameters that the SEIR model is defined by:
dS/dt = -βSI + αR
dE/dt = βSI - εE
dI/dt = εE - γI
dR/dt = γI - αR
When rearranged by simple algebra, these four equations turn into the following:
(1/I)(dlnS/dt) = α(R/(SI)) - β
Implementation
Package
All of the analysis is in the package org.eclipse.ohf.stem.analysis and projects within