Community Profile # Howard Wilton

Last seen: 1 month ago Active since 2022

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Generate combinations with scaleable code
I have a tight piece of code which generates a 16x4 matrix which essentially is 16 vectors with 4 elements each and i want all t...

3 months ago | 1 answer | 0

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Question

Vectorize application of xcorr() function
For the following code, t = 0:1e-3:1-1e-3; AF_hat = []; fd_ = -8:0.1:8; for fd = fd_ AF_hat = [AF_hat; xcorr(s,s.*exp...

4 months ago | 1 answer | 0

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Question

Vectorization of a for loop to increase speed
I am looking to embed an logical expression in an equation. The code example below is to show the problem and is not a reflecti...

4 months ago | 1 answer | 0

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Question

Another question on eliminating for loops....
I would like to eliminate for loops in the following code, L=3; N=L; R=L^2 * N^2; mat = int8(zeros(R,4)); ind = 1; for n =...

4 months ago | 2 answers | 0

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Question

Eliminate a for loop to increase speed
I have a code snippet below which uses a for loop that I am trying to eliminate as I need to scale up to larger values of and ....

4 months ago | 1 answer | 0

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Question

Code optimization by way of selective computations
I have the following code: clc; clearvars; Ts = 1e-1; t = 0:Ts:1-Ts flag = mod(1:length(t),2) s_t = exp(1i*2*pi*t) ...

4 months ago | 2 answers | 0

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Question

Replicate matrix elements without for loop
I am trying to take the matrix base =[1 2; 3 4] and replicate the elements to give expn = [ 1 1 2 2; 1 1 2 2; 3 3 4 4; 3 3 ...

4 months ago | 1 answer | 0

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Question

Avoid for loop in multi-dimensional problem
I am looking to create a 3D matrix the achieves the following: A(:,:,1)=[0 -2*pi; 2*pi 0]; A(:,:,2)=[0 -4*pi; 4*pi 0]; Ultimat...

4 months ago | 1 answer | 0

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Question

Optimization of code with double for-loops
I am looking to optimize the following code specifically, and more generally, I am trying to learn optimization techniques in MA...

4 months ago | 1 answer | 0

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Question

Generate a formula from equation
I am trying to plot the following, where , and is a constant. I wish to create a vector of data using the vector so that my...

4 months ago | 1 answer | 0