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Warren Boschen


Last seen: 7 months ago |  Active since 2022

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Question


Why does ssim only return values of 1?
I'm attempting to use ssim to compare two images. The idea is to compare every slice and "dynamic" along the third and fourth di...

1 year ago | 1 answer | 0

1

answer

Question


Applying a mask to 3D Data
Hi everyone, I'm trying to generate a histogram of some data and I want to apply a 3D mask to the data. I have written as below,...

1 year ago | 2 answers | 0

2

answers

Question


How do I use the Levenberg-Marquardt algorithm for lsqcurvefit?
I'm trying to run a fit on some data using lsqcurvefit. Here is the basic structure of the code: opts = optimset('Display', 'of...

1 year ago | 2 answers | 0

2

answers

Answered
What should I do when fmincon returns exit flag -2 for all voxels?
I was missing something incredibly obvious. I had an upper bound written as 0.80-4 instead of 0.80e-4.

2 years ago | 0

| accepted

Question


What should I do when fmincon returns exit flag -2 for all voxels?
Hi all, I'm having troubles using fmincon to fit the function below: function [out] = sm_signal_high(bvalues, Sig_high, perp, d...

2 years ago | 1 answer | 0

1

answer

Question


Error in using lsqcurvefit with constrained parameters.
Hi all, I'm attempting to use the function lsqcurvefit to fit a single parameter, however I am providing the function with two ...

2 years ago | 2 answers | 0

2

answers

Question


Can I use multiple values for lb and ub in fmincon?
I'm trying to minimize a function, and part of that function involves a sum (lsqcurvefit would not apply in this case). It looks...

2 years ago | 2 answers | 0

2

answers

Question


How do I write a function for fmincon using a for loop?
Hello, I am looking to minimize two parameters, and , with the following minimization: ...

2 years ago | 1 answer | 0

1

answer

Question


How do I add "internal" upper and lower bounds to the function lsqcurvefit?
Hello everyone, I'm having trouble understanding the documentation for the function lsqcurvefit, and in particular the sections...

2 years ago | 1 answer | 0

1

answer