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Ian Wood


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Active since 2011

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Find all largest empty circles in a list of points
Hi everyone, I want to find all of the largest empty circles, which pass through any 3 points in a large list of points (~50)...

10 years ago | 3 answers | 0

3

answers

Question


Constructing a Doubly-Linked Edge List
Hi everyone, I am working on constructing a linked list, that connects edges in two directions and traverses through all poin...

10 years ago | 0 answers | 1

0

answers

Answered
Sorting a vector with another vector of multiple maximums
With the help of kjetil87, I was able to write the appropriate code for this situation. It is shown here: [~,idx] = sort(P(:...

10 years ago | 0

Question


Sorting a vector with another vector of multiple maximums
Hi, I have a function that I want to compute a queue "Qevents", which gets information from a set of points "P" (columns x an...

10 years ago | 2 answers | 0

2

answers

Answered
How to make the sovler faster?
Generally if your variables are dependent on multiple other variables, it takes a longer time to reach the solution, as MATLAB m...

11 years ago | 0

Question


Traversing Through a Vector of Different-sized Cells
Hi, Let me first explain the code I want to execute. I have a matrix "V" of size (m x 2), where the first column is x values ...

11 years ago | 1 answer | 0

1

answer

Answered
Solve a system of symbolic variables
OK, so working through this I came up with another code, and I provided some comments to explain what I did. The code changed qu...

11 years ago | 0

Question


Solve a system of symbolic variables
Hi, I have been trying hard at this for a while now. Does anybody know if there is some way to solve symbolic variables in a ...

11 years ago | 3 answers | 0

3

answers

Answered
Importing .xyz Data Files
I'm getting the data to output in the proper data type now, with the proper number of rows, but for some reason the command read...

12 years ago | 0

Question


Importing .xyz Data Files
Hi, I am having trouble with importing an .xyz data file I got from a 3D laser scanner. MATLAB didn't support the ".xyz" file e...

12 years ago | 4 answers | 0

4

answers

Question


Optimization of a Fitted Circle
Hi, I'll try to explain this the best I can.. to start off, I am inexperienced with optimization techniques. I was asked to m...

13 years ago | 1 answer | 0

1

answer

Answered
Least Squares Fitting Method with a Circle
Is there a problem with my code? Like maybe I shouldn't use a polar plot in this case, or something that could be done better.

13 years ago | 0

Answered
Challenge - Change my avatar colors
load spy colormap(hot)

13 years ago | 1

Answered
how to read data into matlab
Provided your file is in the MATLAB path, you can use importdata data = importdata('file_name.txt') Once you read in all...

13 years ago | 0

Question


Least Squares Fitting Method with a Circle
Hi everyone, Forgive me, I am no expert at MATLAB. I would appreciate it greatly if someone could explain to me the method of...

13 years ago | 3 answers | 0

3

answers

Answered
How can I plot a string function
You can choose whatever values of x you want. Since you are dealing with a trigonometric function in your case, you may want to ...

13 years ago | 0

Answered
Out of Memory Error: How can one get around this?
This is what I came up with using mldivide, after doing some research into the nonlinear least squares method: % Extrapolate ...

13 years ago | 0

Answered
Out of Memory Error: How can one get around this?
Here is the code I came up with. The underlying problem is that this plot needs to be smoothed using a numerical method, such as...

13 years ago | 0

Answered
Out of Memory Error: How can one get around this?
Yeah it's the huge matrix.. with that much memory it's no wonder that it runs out of capacity. What I am trying to do is find...

13 years ago | 0

Question


Out of Memory Error: How can one get around this?
Hi, So I ran my code and in one of the lines it said I had no memory left. The actions on the line consisted of multiplying t...

13 years ago | 5 answers | 0

5

answers

Answered
How do I create a Filter that takes out irrelevant data?
Ok so if I'm reading this correctly the pre-defined function interp2 requires a monotonic matrix, and unfortunately that's not w...

13 years ago | 0

Question


How do I create a Filter that takes out irrelevant data?
Hey everyone, So I have a large amount of data stored in a matrix that displays the surface of an object when plotted. The on...

13 years ago | 3 answers | 0

3

answers

Question


Syntax 3-D Scatter Plot Color as a Function of Altitude
Hi all, I have been working on a program that plots a 3-D image using coordinates specified in a text file. I need to know ho...

13 years ago | 1 answer | 0

1

answer