Answered
HOW TO MOVE THE DIAGONAL ELEMENTS IN MATRIX (ONE PIXELS) FOR IMAGE PROCESSING
or <http://www.mathworks.com/help/techdoc/ref/diag.html |diag()|>?

14 years ago | 0

Answered
how can i morphing a circle?
C = bsxfun(@(x,y)hypot(x-50,y-50)<25,1:100,(1:100).'); %A circle tform = [1 0 0;0.6 1 0;0 0 1]; %a tr...

14 years ago | 0

Answered
Average H of hsv
Why not use |blockproc()| like I suggested in the other thread? It will do this for you completely automagically - there is no ...

14 years ago | 0

Answered
speed up a matlab code by replacing inv(X)*Y with X\Y in 3D dimensions
Please look into Tim Davis' comments/solutions here: <http://blogs.mathworks.com/loren/2007/05/16/purpose-of-inv/ Loren:Purpose ...

14 years ago | 0

Answered
permutations and combinations of column
A=[1 2 3 4]; B=[5 6 7 8]; AB = [A;B]; idx = fullfact([2 2 2 2]); C = AB(sub2ind([2 4],idx,repmat(1:4,size(idx,1),1...

14 years ago | 1

Answered
Make a string an acceptable matlab file name
<http://www.mathworks.com/help/releases/R2012a/techdoc/ref/genvarname.html doc genvarname>

14 years ago | 1

| accepted

Answered
fopen fails to open the file
Is _test.csv_ opened in another application?

14 years ago | 3

| accepted

Answered
why fmincon returns different results every time
* Do you have a |rand()| in there that makes your function non-deterministic? * Is your function non-deterministic in some othe...

14 years ago | 0

| accepted

Answered
Create a rectangular pulse signal i.e.a vector with 0s and 1s,the 1s will determine the widthof the pulse s=(0,0,0,1,1,1,0,0,0)% a rectangular pulse of width 3 samples a) find the magnitude and phase plot of a rectangular pulse using fft()function
Some friends for your journey: doc zeros doc ones doc repmat doc reshape doc fft

14 years ago | 0

Answered
on the use of the accumarray function
Accumarray uses each sub as an index into the val vector. It then takes all values with this index and performs the operation o...

14 years ago | 0

| accepted

Answered
Average value of H in HSV of a picture
doc blockproc

14 years ago | 0

Answered
import .tif images and create a stack/array of images
<http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F FAQ How do I process a sequence of files?>

14 years ago | 0

Answered
Construction of an isosurface from CT images.
what do you mean by "each slice"? An |isosurface| is essentially a three dimensional contour plot. Thus it does not make sense...

14 years ago | 0

Answered
All the MATLAB window functions are frozen, except for the command line
Please try deleting the contents of |prefdir|: >>prefdir Navigate to this folder and delete everything.

14 years ago | 1

Answered
How to extract columns of a matrix into seperate vectors?
x = mat(:,1); y = mat(:,2); %etc. But like Oleg said - don't do it!

14 years ago | 5

Answered
Bugfixing for ode45 - "Too many input arguments"
If you look in the doc for |ode45| and all of the other ode solvers it shows that they need to recieve two inputs (t and y) (eve...

14 years ago | 2

Answered
About termination of genetic algorithm
What is the _exitflag_ returnmed from |ga()|? This will tell us a lot about what is causing it to exit... <http://www.math...

14 years ago | 0

Answered
Multiple fig files into one GUI with Tabs.
No. Unfortunately *.fig files cannot be children of other *.fig files. If you wish to use tabbing you will have to emulate t...

14 years ago | 1

Answered
Path radius from lat/long data
A place to start: <http://www.mathworks.com/help/releases/R2012a/toolbox/map/ref/distance.html distance> We might be able ...

14 years ago | 1

Answered
VideoReader - How to import video with audio
<http://www.mathworks.com/help/releases/R2012a/toolbox/vision/ref/vision.videofilereaderclass.html doc vision.VideoFileReader>

14 years ago | 0

Answered
Best way to determine if number is triangular number?
<http://www.mathworks.com/matlabcentral/cody/?term=triangle CODY!>

14 years ago | 0

Answered
How to obtain average in a matrix without loop?
A= [10 2000 1 1 1.5; 10 2000 1 3 1.1; 20 2000 1 1 1.2; 20 2000 1 2 1.4; 10 ...

14 years ago | 1

| accepted

Answered
How to set the region of interest with mouse for video
doc imroi %and children

14 years ago | 0

Answered
Memory during a loop
It depends on where you call it, compare: * 1 for ii = 1:10 ii clear all end * 2 for ii = 1:10 c...

14 years ago | 2

Answered
How can I optimize Data with Genetic Algorithm?
It sounds more like a linear programming problem for which you could use <http://www.mathworks.com/help/releases/R2012a/toolbox/...

14 years ago | 0

Answered
Add color to 2D vector field???
<http://www.mathworks.com/matlabcentral/fileexchange/17582 FEX:ncquiverref>

14 years ago | 0

Answered
Double to cell conversion.
data = (rand(10,1)>0.5)+1 c = cellstr(repmat('hit',size(data))) c(data==2) = {'miss'}

14 years ago | 0

Answered
What is the meaning of '...' in help and doc files.
It is emphasizing that you can receive additional outputs with all of the various combinations of inputs already mentioned.

14 years ago | 1

Answered
Matrix operations that preserve floating point precision
The values will be converted to the most restrictive class so preconvert the integers to double: Q = cellfun(@double,Q,'Uni...

14 years ago | 2

| accepted

Answered
Why does Matlab give an error for axes?
It's not a warning for the axes, it's a warning for the |line| and it means exactly what it says! You can't have a line with tw...

14 years ago | 2

| accepted