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Alessandro Maria Marco


Last seen: 5 months ago |  Active since 2022

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Speed up nested loops with parfor
I'm trying to speed up this part of code. I have a constraint: the inputs of ReturnFn must all be scalars. If it was not for thi...

5 months ago | 0 answers | 0

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answers

Answered
Vectorize nested loops for performance
I managed to vectorize the code but the vectorized code is faster than the loops only if the number of points on the grid is sma...

7 months ago | 0

| accepted

Question


Vectorize nested loops for performance
I have to solve a dynamic programming problem with a finite horizon and I am trying to vectorize as much as possible for speed. ...

7 months ago | 1 answer | 0

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answer

Question


fsolve with bound constraints - transformation method
I would like to solve a system of nonlinear equations with bound constraints, i.e. lb<=x<=ub. Matlab suggests to convert the pro...

10 months ago | 2 answers | 0

2

answers

Question


Cubic interpolation coefficients and basis matrix
Suppose I have n data points (x(i),y(i)) with i=1,..,n. I want to compute a cubic interpolant that fits exactly these points (in...

11 months ago | 1 answer | 0

1

answer

Answered
Speed up code by eliminating loop
The vectorized code after eliminating the loop over d is the following. Choose either 'loops' or 'vec' at the beginning of the s...

1 year ago | 0

| accepted

Question


Speed up code by eliminating loop
Dear all, I have to do a maximization of a 3-D array V(e,b,d) over the first-dimension, obtaining something that I call e_opt w...

1 year ago | 2 answers | 0

2

answers

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Compute linear interpolant in pp form and find derivative
I would like to compute a linear interpolant in pp-form and then use the function fnder to compute its derivative. [The reason t...

1 year ago | 1 answer | 0

1

answer

Question


Bilinear interpolation faster than interp2?
I am doing bilinear intepolation and I am looking for a function that is faster than interp2 or griddedinterpolant. I have found...

1 year ago | 1 answer | 0

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answer

Question


Unpack structure, only some fields
Suppose I have the structure par with fields par.a=3.5; par.b=[4;1.2]; par.c='ale'; I want to create variables b and c such...

2 years ago | 2 answers | 0

2

answers

Question


Parallelize nested loops with parfor
I'm trying to speed up the simulation of some panel data. I have to simulate first over individuals (for ii from 1 to N) and the...

2 years ago | 2 answers | 0

2

answers

Question


parfor nested loop ind2sub
I have three nested loops and I would like to parallelize all of them using parfor. I know that it is not possible to nest a par...

2 years ago | 1 answer | 0

1

answer

Question


Speed up vectorized code automatic expansion logical indexing
I have to compute the maximum of a 2-dimensional array repeatedly in a nested loop and I am trying to speed up the code, also us...

2 years ago | 1 answer | 0

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answer