Jeff Ack
University of North Carolina Chapel Hill
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Question
Why does it take so long to run a function?
I'm using a user-created function in my code that I have to evaluate a lot of times. The function is running relatively slow. ...
5 years ago | 1 answer | 0
1
answerPass variables during minimization routine
How should I go about nesting the functions? Is the outer function the one that gets minimized or the inside one? I'm thinking...
8 years ago | 0
Question
Speed up indexing / Repmat operation
I have to following code I'm running: M=zeros(r,c); M (:,I)=repmat(Q,1,sum(I)); end I is a 1-by-c logical vector a...
8 years ago | 2 answers | 0
2
answersQuestion
Pass variables during minimization routine
Here's what I'm trying to do - Create a function that I wish to minimize. - Set an initial value of fbest=10000000 (or ...
8 years ago | 2 answers | 0
2
answersQuestion
Automate the opening of .mat files and the aggregation of opened matricies
I wasn't sure how to title this question. It's pretty easy to describe what I'm trying to do, though: I have 100 .mat files,...
8 years ago | 2 answers | 0
2
answersQuestion
Create a MATLAB program that creates other programs?
Hi there, I would like to create 100 MATLAB programs that are identical except for one line of code. My reason for doing...
8 years ago | 1 answer | 0
1
answerQuestion
Combine (by adding) rows with the same entry in one of the columns
I think that might be a terrible title for a fairly straightforward problem: I have sales data by zip code: 44202 35 ...
8 years ago | 1 answer | 0
1
answerQuestion
Solve showing more equations than I entered
I am attempting to solve a system of 3 equations. The equations contain 3 variables I am trying to solve for plus 2 parameters....
9 years ago | 1 answer | 0