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I would really like to be able to fit to differential equations. This problem recently came up while helping a friend with his data.
This thread is meant to be a brainstorm about potential syntaxes a…
tBuLi updated
8 years ago
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Executing the following script outputs `[ 1.09315092e+49 -3.01363994e+50 -3.42309008e+50]`, which is quite unexpected:
```
import numpy
import scipy.optimize
def f(var):
x, y, z = var
ret…
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I feel a little puzzled when I tried to take an vector as the parameters to optimize.
```
function test(x::Vector)
return x'*x
end
function test2(x::Vector)
return x[1]^2+x[2]^2
end
```
The…
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Hi,
I would like to get the following topic to your attention:
http://stats.stackexchange.com/questions/176350/non-linear-least-squares-sine-frequency-estimation-in-julia
In short: the Optim Nelder…
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I'd like to take a look at this issue before resubmitting. It may be possible to handle these better than just omitting them from the analysis.
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For many applications `movement` fails because the objective can't be calculated at the starting parameters, causing `optim` to error:
```
Error in optim(predictionModel$modelparams, fittingwrapper, …
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I'm having issues with the default minimizer (BFGS) getting stuck in local minima in a hierarchical model that I'm running. I've [read](http://people.duke.edu/~ccc14/sta-663/BlackBoxOptimization.html)…
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As we add more model types and algorithms, I've started thinking about how best to conceptualize and organize them. Right now, we've been adding a new type and associated methods for each filtering a…
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Did you read this article "Fury of the Swarm: Efficient and Very Accurate Triangulation for Multi-View
Scene Reconstruction" to improve triangulation ?
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I might be missing out on some key insight/knowledge here, but it seems like:
``` julia
function fminbox{T