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spectrogram
I suggest the simple syntax: help spectrogram

casi 15 años hace | 0

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fitting spline on data and getting equation
If you have the spline toolbox you should take a look at spas2, spaps and csasp. HTH,

casi 15 años hace | 1

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Using bvp4c to solve a system of n ODEs, where n is an arbitrary number
Wouldnt that just be something like this: function dydx = npode(x,y,parameters) dydx = y.*(1-parameters) - const*s...

casi 15 años hace | 0

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Display matrix values with color coding
<http://www.mathworks.com/matlabcentral/fileexchange/30151-shaded-correlation-table> Might be another option.

casi 15 años hace | 0

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How to create variable with special characters like [ ] { } etc
Try to avoid such nonsense asap. Nothing good can come out of that. If you somehow want a [ or another non-"alphanum" character ...

casi 15 años hace | 0

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Partial integration
Maybe something based on this pattern would work: g = @(x,xp) (x-xp).^2; f = @(x) x; IntOfG = @(x,c,d) quadgk(@(x...

casi 15 años hace | 0

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Use of subplot in scrollable panel
Search on the file exchange! and you'll find: <http://www.mathworks.com/matlabcentral/fileexchange/7730-scrollsubplot> HTH.

alrededor de 15 años hace | 0

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Path management for different versions of projects
In my MyStartup.m I have a call to a function LOADPROJECTS that lets me choose projects, then the paths required gets added to t...

alrededor de 15 años hace | 1

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How can I write a raw double precision image to disk?
If you want to have true double precision image I think that the fits (Flexible Image Transport System) file format is the way...

alrededor de 15 años hace | 3

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3d version of "image" to plot matrix as surface
There is a file exchange function tcolor that you might modify to get it to do true-colour surfaces: <http://www.mathworks.com/...

alrededor de 15 años hace | 0

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How to keep/use last used CURRENT DIR?
Maybe something like this in your finish.m: last_working_dir = pwd; save(fullfile('~','.matlab','lastest_dir.mat'),'la...

alrededor de 15 años hace | 0

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Removing Upper XTicks ..or Right Y Ticks..How?
set(gca,'box','off')

alrededor de 15 años hace | 8

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Out of memory using mrdivide
Not realy anything better than the references on the wikipedia pages. But http://eqworld.ipmnet.ru/en/solutions/lpde/heat-toc.pd...

alrededor de 15 años hace | 0

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Curl in Polar Coordinates
I think it is easiest to calculate the curl in Cartesian coordinates and then transform the result to polar coordinates. Especia...

alrededor de 15 años hace | 0

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Help with this problem...
You should learn now sooner than later to comment your code! Write between each line what it is supposed to do. If you reach a c...

alrededor de 15 años hace | 0

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Issue creating contour plot from interpolated data
Since the curves are isoterms you should not be far away from a contour plot. Here I'm just assuming that you get the curves in ...

alrededor de 15 años hace | 0

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3d scatter data of physical model
Take a look at spap2, spaps and friends if you have them, for the wholes take a look at the inpaint_nans function at the file ex...

alrededor de 15 años hace | 0

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manipulate pixels in an image
Something like this will do it: img_in = randn(36); M = eye(size(img_in,1)/3); idx = sort(repmat(1:size(M,1),3,1)); ...

alrededor de 15 años hace | 1

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Out of memory using mrdivide
Bas, why cant you solve the PDE analytically - or at least "analytically enough"? A diffusion is just a convolution with a Gauss...

alrededor de 15 años hace | 0

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Can I declare global handles and/or variables?
Yes, you can. But really, _really_ try to avoid it. See for example: <http://matlab.wikia.com/wiki/FAQ>, or search for discussio...

alrededor de 15 años hace | 4

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beamforming
There are some packages for antenna arrays on the file exchange. Check those. HTH

alrededor de 15 años hace | 0

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How to add a total variation term to my tomographic reconstruction problem?
Wouldn't TV(x) be something similar to: [D1,D2,D3] = gradient(x); TV = sum((D1.^2+D2.^2+D3.^2).^.5); If you're using ...

alrededor de 15 años hace | 0

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Slightly different wind rose in Matlab
Isn't this just what you'd get with polar? (or any of its siblings on the file exchange)

alrededor de 15 años hace | 0

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colormap
Try - and you'll see.

alrededor de 15 años hace | 1

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Remove non uniform illumination
If you have the Image Processing toolbox there is a demo for how to correct for non-uniform illumination. That might help. If yo...

alrededor de 15 años hace | 0

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[DEPRECATED] What frustrates you about MATLAB?
That contour effects the clim range! I've used something along these lines: pcolor(x,y,z1) hold on contour(x,y,z2,8,'...

alrededor de 15 años hace | 1

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random number generator of normal distribution in 2D
Maybe something like this for the 2-D random points scattered around r0 with a 2-D normal distribution with major and minor widt...

alrededor de 15 años hace | 0

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storing multiple image in single file
I was going to suggest that you could write your images to a fits-file - it is a good image format, in its way. Then when I chec...

alrededor de 15 años hace | 0

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Best way(s) to master MATLAB?
In addition to the above: Browse/play through "all" demos.

alrededor de 15 años hace | 2

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Deblurring Image without known LEN, THETA
If you have the image processing toolbox take a look at deconvblind. HTH, Bjoern

alrededor de 15 años hace | 1

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