Plotting only the maximum and minimum amplitude of the coexistence periodic orbit vs d
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I am using matcont. I want to get the one parameter bifurcation diagram d vs x
x'=s*x*(1-x)*(x-b)-(1+a*y)*x*y/(1+h*(1+a*y)*x)
y'=(1+a*y)*x*y/(1+h*(1+a*y)*x)-d*y
Coordinates: x,y
Parameters: s,b,a,h,d
Parameter values: s = 3, a = 1:2, b=0.1, h = 0:4
I am using matlab r2015a, matcont6p10, Win 7, 32bit. I got the plot attached herewith.
I have two questions:
- See the blue Blue region. I want to plot only the maximum and minimum amplitude of the coexistence periodic orbit vs d. How to do that?
- How to export the data of d vs x plot from matcont to matlab?
I would be happy to get full answers in step by step.
Thanking you.

5 Commenti
dpb
il 22 Giu 2019
I have a few questions, too... :)
Let's just start with the most basic--
- What is "matcont6p10"
- What is the definition of "the coexistence periodic orbit vs d"?
Atom
il 22 Giu 2019
A search in MATLAB documentation --
Did you mean: matchtype (11 results)
No results for matcont6p10.
Suggestions:
Make sure all words are spelled correctly.
Try different keywords.
Try more general keywords.
Try fewer keywords
So again, what's the TB in Q? W/O doc how are we to know anything at all about it?
To the specific Q?, what's to prevent you from simply using max() and min() over the data that created the blue line in the figure?
dpb
il 22 Giu 2019
ML Answers isn't the correct forum for support for 3rd party applications -- looks like there's a pretty active support network there---
Still, what's preventing you from just recovering the data from the figure and processing it as at least a working solution even if not necessarily most efficient. Altho one presumes there's some way to save the data being generated.
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