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modelingbiology 2009/03/03 11:55 modelingbiology 2009/03/05 21:15 current
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3/3/2009: {{:chapter_4.pdf|Chapter 4}} 3/3/2009: {{:chapter_4.pdf|Chapter 4}}
Here is Otto and Day chapter 4 on numerical and graphing techniques. I also scanned {{:otto_day_primer1.pdf|Primer 1}} in case you would like to read that as well. It covers functions and approximations. -Kate Here is Otto and Day chapter 4 on numerical and graphing techniques. I also scanned {{:otto_day_primer1.pdf|Primer 1}} in case you would like to read that as well. It covers functions and approximations. -Kate
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 +Here are a few scripts relating to chapter 4. Here is Brian Knaus' logistic growth script: {{:logistic_growth.r|Logistic growth}}
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 +Here's my version, I've also included a script demonstrating Euler's method, demonstrating the increase in chaos as the step size approaches 1 (i.e. a transition from continuous time to discrete time)  {{:logistic.r|}}
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 +Finally, I found a very cool script on the R help forums that allows you to plot vector fields. I've included the code for the function, and an example of lotka-volterra competition vector fields (Like figure 4.15) {{:lotka_volterra_competition.r|}}
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modelingbiology.txt · Last modified: 2009/03/05 21:15 by uyedaj
 
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