4 ms·
> It depends on the sign of the exponent. Negative exponential growth, as we see in wild animal populations, is not guaranteed to turn into an S-curve. As the p
by Archelaos 4y ago
> It depends on the sign of the exponent. Negative exponential growth, as we see in wild animal populations, is not guaranteed to turn into an S-curve. As the passenger pigeon would attest, were any of them left.
Sigmoid functions are defined over real input values (not integers). If you were to model the decline in (integer) numbers of passenger pigeons with reals, you would get a sigmoid function were the number at the end approximates, but never reaches zero.
- Trombone12 4y agoWhat are you trying to achieve by pointing out one of the ways to construct an incorrect model of the passenger pigeon population?
- Archelaos 4y agoa) I did not construct the model. b) Using real numbers to reason about integer base values is not wrong per se. You just need to know how to interpret the result.