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Results tagged with mathematical-optimization
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user 30885
Questions on the optimization functions of Mathematica such as FindMinimum/FindMaximum, Minimize/Maximize, NMinimize/NMaximize, etc.
2
votes
1
answer
624
views
Simultaneous minimisation of chi-square
I have a series of data sets with which I would like to fit a model function to simultaneously. In each data set, I have coordinates $\left\{x,y\right\}$ and an error bar for $y$.
The data sets are
…
- 510
0
votes
1
answer
317
views
Chi square minimisation wrt variables within an integration?
I'm trying to fit a model curve to some data by performing a chi square minimisation wrt three parameters $a,b$ and $NN$. The trouble I am having is that the variables with which I want to minimise th …
- 510
0
votes
1
answer
273
views
Incorrect minimal parameters in a chi-square fit
I am fitting some model function to five sets of data through the following short code
Needs["ErrorBarPlots`"]
MasData1 = {{{89, 6.7}, ErrorBar[1.272]}, {{112, 7.9},
ErrorBar[1.221]}, {{141, 9.3}, …
- 510
2
votes
1
answer
461
views
Caclulate second partial derivatives of a numerically defined function
I am performing a chi square minimisation with respect to some parameters x,y,z that are themselves part of the kernel involved in a numeric integral. I therefore have a numerical function of three va …
- 510
1
vote
0
answers
84
views
Speeding up a minimisation involving Numeric integral and Interpolating function
I am doing a minimisation procedure to obtain best fit parameters a,b,NN for a model involving a numeric integral and an interpolation function. The code as written below runs but I am yet to obtain a …
- 510