Geoff
Followers: 0 Following: 0
I use MATLAB for small jobs and C++ for real jobs.
Professional Interests: Problem solving
Estadísticas
5 Preguntas
342 Respuestas
0 Problemas
31 Soluciones
CLASIFICACIÓN
142
of 289.734
REPUTACIÓN
858
CONTRIBUCIONES
5 Preguntas
342 Respuestas
ACEPTACIÓN DE RESPUESTAS
60.0%
VOTOS RECIBIDOS
160
CLASIFICACIÓN
of 19.580
REPUTACIÓN
N/A
EVALUACIÓN MEDIA
0.00
CONTRIBUCIONES
0 Archivos
DESCARGAS
0
ALL TIME DESCARGAS
0
CLASIFICACIÓN
13.474
of 144.110
CONTRIBUCIONES
0 Problemas
31 Soluciones
PUNTUACIÓN
330
NÚMERO DE INSIGNIAS
2
CONTRIBUCIONES
0 Publicaciones
CONTRIBUCIONES
0 Público Canales
EVALUACIÓN MEDIA
CONTRIBUCIONES
0 Temas destacados
MEDIA DE ME GUSTA
Contribute at least one answer each month for 6 consecutive months
Awarded to Geoff on 20 Jul 2017
Accept 1 answer given by other contributors
Awarded to Geoff on 20 Jul 2017
Answer 1 question that was unanswered for more than 30 days
Awarded to Geoff on 20 Jul 2017
100 of your answers have been accepted
Awarded to Geoff on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to Geoff on 20 Jul 2017
Comment on a problem or solution
Awarded to Geoff on 19 Mar 2012
Solve a problem for the first time
Awarded to Geoff on 19 Mar 2012
Feeds
HOW CAN I CALCULATE THE SIGNAL TO NOISE RATIO(SNR) OF A CHIRP SIGNAL
From Wikipedia: http://en.wikipedia.org/wiki/Signal-to-noise_ratio NR = Psignal / Pnoise = (Asignal / Anoise)^2 Where P is powe...
casi 3 años hace | 0
| aceptada
Help with proper parfor
You can't write to a parallel-segmented matrix in the inner loop. Try this: parfor i=1:r col = zeros(n,1); f...
más de 11 años hace | 0
| aceptada
How can I import a .txt file correctly using textscan?
The way to have the most control over a line-based txt file import is to read it one line at a time: while !feof(fid) ...
más de 11 años hace | 1
Script adapted into a funtion Function not returning equal values
Floating point precision errors. If you need to test for zero, then test for something like: if abs(value) < 1e-5 10^-5 ...
más de 11 años hace | 0
| aceptada
time to number conversion
From memory, if you use |datenum| to just get the time with no date, it doesn't return a number between 0 and 1. But you can ge...
más de 11 años hace | 0
| aceptada
Do you think that MATLAB is expensive?
Yes, I think it is expensive. In New Zealand, it's about $2000 per toolbox. The compiler is over $8000. The work I was doin...
casi 12 años hace | 0
Can you use cell or struct as function input？
Yes, and yes. I'm puzzled that you're asking this here when you could quite easily test for yourself... Part of the process ...
casi 12 años hace | 3
| aceptada
Save data from a loop
I think this might be what you want: for f = 1:40 for g = 1:40 i = (f-1) * 40 + g; dpTxcouple1(:,:,i) = ...
casi 12 años hace | 0
Answering my own question
If it really is about something cool, then I'm in agreement with the others. Go for it... People could still add their own ans...
casi 12 años hace | 0
can someone explain this code?
|x1_Y| is an array of indices. You're doing a boolean test on |x1(10:300)| to determine if a point is an outlier. That is, it ...
casi 12 años hace | 0
| aceptada
Need some assistance with "if" command
Oh, the better way is to use the proper MATLAB error function: if a < 0 error( 'Not a valid input.' ); end
casi 12 años hace | 0
Need some assistance with "if" command
If you don't have a function or anything to return from, there's a sneaky little trick you can use. This can be useful for othe...
casi 12 años hace | 0
| aceptada
As a Software Engineer, Why should I use MATLAB?
From one developer to another, the answer is: *why not??* What do you have to lose from having another tool (or rather, arsen...
casi 12 años hace | 1
frequency
<http://www.google.com/?q=quiescent+frequency>
casi 12 años hace | 0
| aceptada
What do I have to do to sort strings properly in Listbox?
Don't ask the same question just because nobody answered it yesterday. If you are impatient, write a comment on it to bump it b...
casi 12 años hace | 0
| aceptada
how to convert Julian date to Gregorian date ?
Use |datestr|
casi 12 años hace | 0
| aceptada
realtime data streaming between matlab and opencv, visual c++
How "realtime" do you need? If you were polling a file multiple times a second, would that be sufficient? Can you do your anal...
casi 12 años hace | 0
fprint error
Like the error message says, some of your inputs are structs, and that's not allowed. Run the following code to check the types...
casi 12 años hace | 0
What is the purpose of this line in MATLAB's "factorial.m" function?
I would hazard that it is there to handle the special case of computing zero-factorial, which of course is 1.
casi 12 años hace | 0
importing csv array of unknown size, characters
So the general thing is this... Keep track of the current state outside the loop: line_num = 0; % Current CSV line number...
casi 12 años hace | 1
Non-numeric matrix to string
It's not a matrix. It's a cell array. You can try converting the whole thing to strings with something like: [M{:}] ...
casi 12 años hace | 0
| aceptada
Computer Vision - Feature Detection and Tracking - Tracking a RC car in a video
Of course, but you might have to implement a bunch of complex algorithms yourself. If you're not familiar with vision processin...
casi 12 años hace | 0
Find Min& Max Togather
Well, I do it like this: function [Amin, Amax] = minmax( A ) Amin = min(A); Amax = max(A); end Note: Not to...
casi 12 años hace | 0
Slightly off topic: determining at the Windows system level when my process is done
Why don't you invoke the shutdown as the last thing your MatLab script does?
casi 12 años hace | 1
Matrix to Table format
Are you saying you want to generate the SQL: CREATE TABLE my_table blah blah blah Followed by INSERT INTO my_table ...
casi 12 años hace | 0
Combine Two Different Images With Different Gain Values
Here's what I'd do... Convert all your images to 16-bit. Then take the factor-1 image, multiply it by 10. Then take the fac...
casi 12 años hace | 1
| aceptada
Temporal processing of image stack
Well, I'm not known for my solutions that take advantage of inbuilt MatLab functions... Maybe something like |filter| would be ...
casi 12 años hace | 0
Financial contract value
Just a snippet of coding advice from me... If you need to use a number more than once, especially if it relates to how many v...
casi 12 años hace | 0
Entering data into MATLAB from a csv file containing both data and letters
textscan(currentLine, '%s%s%c%d%d%d%d%f%f')
casi 12 años hace | 0
Deleting X-Y points that are not near other points on a field of data points
Naive (brute force) implementation given by per isakson looks sufficient for this problem. O(N^2) is okay for 900 rows. For la...
casi 12 años hace | 0
También puede seleccionar uno de estos países/idiomas:
América
- América Latina (Español)
- Canada (English)
- United States (English)
Europa
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
Asia-Pacífico
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)