Deterministic Chaos

6.R. Kelly Plots of the Tent Map and the Logistic Map

Recall the Kelly plot method for representing data. We take the tent and logistic maps as the generators of our examples.

Here is the color scheme for the bins: left to right for lowest to highest.

Here are some examples with the logisitc and tent maps, for the indicated s.

Logistic
0.9, 0.99
1.5, 1.5
2.4, 2.9
3.1, 3.5
3.55, 3.57
3.6, 3.7
3.8, 3.825
3.826, 3.827
3.828, 3.829
3.846, 3.999
Tent
1.2, 1.32
1.4, 1.5
1.7, 1.8
1.9, 1.999
s = 3.55. Here we see five colors: dark green, brown, black, light green, and grey. However, the repeating pattern - dark green, brown, black, light green, grey, brown, black, light green - is of length eight. Click the picture to reduce. s = 3.57. This is a 64-cycle. Don't try counting the cycle unless you have a lot of free time. Click the picture to enlarge.

Here is an illustration of sensitivity to initial conditions by Kelly plots.
Here are some animations of how the Kelly plot varies with the s parameter of the logistic and tent maps.

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