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Ben Mitch


Last seen: 7 months ago |  Active since 2001

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function-style array indexing
Hi This problem keeps coming up for me over the years, and there must be a standard solution, so perhaps someone knows it, I ...

8 years ago | 1 answer | 0

1

answer

Question


OpenGL renderer not offering hardware acceleration (Windows, NVidia)
Hi I am working with some not-all-that-large polygon datasets, and rendering them into a figure. Let's see... 3000 triangles....

13 years ago | 0 answers | 1

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answers

Question


using classdef, is it possible to mix run-time data access through the dot syntax with methods elegantly?
hi i am developing a class (using classdef) that maintains a structure internally with fields that are instance-dependent. i ...

13 years ago | 1 answer | 0

1

answer

Question


taking control of tab completion w/ classdef
hi i am writing my custom classes using the classdef syntax, and sub-classing handle. the classes will be supplied to users, ...

13 years ago | 0 answers | 1

0

answers

Question


how to wrangle the "doc" system when writing a class?
Hi I have written a class which is quite complex (hundred or so methods). It exposes two public interfaces; one is to the fra...

13 years ago | 0 answers | 2

0

answers

Answered
Running scripts from command line
if you don't need error information, you could just enclose your call to run() in a try/end, such as: matlab.exe -r "cd c:\...

13 years ago | 5

| accepted

Answered
Dumb mistakes we make with MATLAB.
Moving into the Figure window, but in a similar spirit to the rand(100000) thing, I use this when I need an excuse to take a bre...

13 years ago | 0

Answered
How do I fix the error "Function definitions are not permitted at the prompt or in scripts"?
Perhaps where you have function S = timestr(D,precision) you intended S = timestr(D,precision)

13 years ago | 2

Answered
How do I create a string for a plot title from one fixed string and one I get from INPUT?
In addition to what Arnaud suggests, I also sometimes find it useful to keep a bit of name in the plot and change only the secon...

13 years ago | 2

Answered
CSV vs MAT files
I think the answer to both (1) and (2) is .mat file. ASCII files (like CSV) require conversion to and from the format in memory ...

13 years ago | 1

| accepted

Answered
polynomials fitting
say you have x = [1 2 3 4]; y = [8 12 16]; then you can fit a polynomial to the region you have data for (the first t...

13 years ago | 0

| accepted

Answered
clim in pcolor plot
are you perhaps looking for...? set(gca, 'clim', [0 1]);

13 years ago | 1

Answered
Is it possible to acquire and display real-time video from the VGA port of a notebook?
There are mechanisms for doing real-time video capture, yes. AFAIK VGA streams are rarely used in this way. If you have an an...

13 years ago | 1

| accepted

Answered
Solving a simple equation
You can solve an equation algebraically using the symbolic math toolbox, e.g. to solve x+3=0 use: solve('x+3') You can so...

13 years ago | 1

Answered
how in matrix insert other matrix
A(2:5,2:5) = B;

13 years ago | 0

Answered
How to convert RGB to ycbcr420?
http://www.mathworks.com/matlabcentral/newsreader/view_thread/161961

13 years ago | 0

Answered
3d representation of GPS coordinates
If you want something looking just like the figure you posted, you'll be wanting to use patch(), I suspect. The following might ...

13 years ago | 1

Answered
how to display the end-effector position?
Hi Cheng If you're going to post code, I think you'll have to trim it down to the essentials if you want anyone to look at it...

13 years ago | 0

Answered
How do I create a Filter that takes out irrelevant data?
Hi Ian There's some information missing from your question, but it sounds like you're looking to interpolate a large amount o...

13 years ago | 0

Answered
Put figures (.fig) in one page
There is an easy way, which depends a bit on what you've got in your figures. Assuming you've only got 1 axis per figure, this w...

13 years ago | 0

Answered
sliding window
I think you're after filter2(). Try mn = filter2(ones(3), im);

13 years ago | 1

Answered
Can this code be improved?
This way of doing processing, unfortunately because it's the easiest to program, is the slowest way to get things done in Matlab...

13 years ago | 0

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Answered
Using Boost Libraries with Mex function in MATLAB
Yup. Find your mexopts file (mexopts.bat, since you seem to be on Windows, which you'll find at something like c:\users\craig\ap...

13 years ago | 0