-
In http://beta.book.xogeny.com/behavior/equations/population/ you say that "the Lotka-Volterra system of equations is actually non-linear". This is true since bilinear is non-linear in some case.
Lat…
-
Currently Ploopy (heh) (`Ploopy.py` in the predator_prey folder) runs away - populations run out of hand.
This could be solved by:
- creating negative feedback loops (e.g. "rabbits->rabbits" : "-…
-
We should be able to specify more priors. We just need to define a dictionary that says how to convert Distributions.jl distribution types to strings that Stan can use. @goedman is there a list of Sta…
-
Hi, I used to be able to run the lotka_volterra_pe.py example but it seems to throw this error now:
```
and where phi is defined by
y[0] = x[0]
y[1] = x[1]
-------------------------------------…
-
Hi @ChrisRackauckas, I am trying to use the http://docs.juliadiffeq.org/latest/analysis/parameter_estimation.html examples to find parameters for a system of ODEs in a biology problem. I am able to s…
-
It works with the firefox versions that we tested.
But simulation fails with both google chrome for windows and my chromium setup in ubuntu.
Chromium Version 41.0.2272.76 Ubuntu 14.04 (64-bit)
Err…
-
@tbose1, I don't how you use it and what should return when x is zero.
But I get an error, because sometimes in my code it's called with x=0.
I (temporarily) put that returns 1... Please, check if c…
-
This is apparently a know issue, (according to google) but I can't understand how to fix it.
I was hoping one of you (@scopatz @FlanFlanagan @katyhuff ) had a better understanding
```
=========…
-
Modelling a phenomena which only has physical interpretation between 0 and 1. The 'NonNegative` SDE option ensures the solution is positive, but additive noise my force the solution to an area in phas…
-
As mentioned in Robust and efficient parameter estimation paper. Regularization is used to surmount ill-posedness and ill-conditioning of the problem. `MahalanobisPenalty` from [PenaltyFunctions.jl](h…