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how to find minimum point at endpoint in matlab, please help.
Andrei's solution is also not a global minimizer. What I propose, should the function change to something crazy like: f = @...

fast 15 Jahre vor | 0

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fminbnd finding wrong minimum point, please help
"fminbnd" gives local solutions. The curve defined by your function "f" looks like the response from an over-damped oscillator (...

fast 15 Jahre vor | 1

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Filling gaps in between lines to make it a continuous line
If you want to do this in 2D, then I think using "interp2" with the "spline" option will only work for input located on a regula...

fast 15 Jahre vor | 0

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Detrending data using MATLAB detrend - how much error?
I agree with Jan. To be sure, large trends should be removed from data if you are interested in investigating the higher frequen...

fast 15 Jahre vor | 2

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FIt ellipse to data in polar coordinates
You may want to try modifying the code I put up on: http://www.mathworks.com/matlabcentral/answers/17847-fitting-a-sin-functi...

fast 15 Jahre vor | 0

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time domain signal reconstruction from frequency domain
Why are you taking just half of the spectrum? You need to apply the modification to the entire frequency range (i.e., both po...

fast 15 Jahre vor | 2

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Fitting a sin function to a sparse dataset with a known parameter.
Having only a few data points to work with is a little worrisome, but something like this may work: function estimates = fits...

fast 15 Jahre vor | 0

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Plotting data
This is a possible work around. Instead of rewriting either "polyfit" or "interp1" to take into account both the known Y amplitu...

fast 15 Jahre vor | 1

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save matrixs in different names
It may not be efficient, but before your "for" loops you can define an empty matrix: mat = []; Then inside your "for" loop a...

fast 15 Jahre vor | 0

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trying to create a variable less than or equal to pi/2 but more than -pi/2
You can create a dx, such as: dx = pi/100; Then define x as: x = -pi/2 : dx : pi/2-dx;

fast 15 Jahre vor | 1

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Basic matrix equation Ax=B with restrictions
If "x" and "b" are column vectors, then your system of equations is like: A(1,1) * x(1,1) + A(1,2) * x(2,1) + ... + A(1,N) * ...

fast 15 Jahre vor | 0

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Gridding and interpolate data
You could use the formulation found in the following reference: Sandwell, D. T. (1987), Biharmonic spline interpolation of GE...

fast 15 Jahre vor | 4

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Plotting 3D regions with constraints on x,y and z.
I have done some 3D shapes in the past. It may not be pretty, but it may be an option unless others have more efficient ways of ...

fast 15 Jahre vor | 0

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Sum polynomials function help?
If you mean you have polynomials with coefficients defined in x1 and x2 - for example the values in x1 would yield: y = 1*x^3 +...

fast 15 Jahre vor | 1

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Plotting multiple matrices in the same plot, so i can seee how the matrices develop trough time?
If you want to make a movie to use outside of Matlab, then look up "getframe" and something like "movie2avi" in the Navigation H...

fast 15 Jahre vor | 0

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Help programing 2D conduction heat transfer in time, using finite diference method (forward euler for time, centered euler for space).
Do you get any errors... or the result is just incorrect? One problem: Your second to last "elseif" statement has "i<1&&i>5&&...

fast 15 Jahre vor | 0

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how to convert a accelerometer data to displacements
Doing this sort of conversion is best done in the frequency domain. This should work now. Two things weren't working before: 1...

fast 15 Jahre vor | 0

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Create a surface plot with colors associated to value on cell
Check out "colormap" in the Matlab Help Navigator. Right under the "Description" section, they talk about creating your own colo...

fast 15 Jahre vor | 2

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sound sample too short to see higher frequencies?
The Nyquist frequency is, by definition, the highest frequency you can resolve before you start aliasing the signal. This means ...

fast 15 Jahre vor | 1

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How can I display all elements of an array in a single row?
If the string "A" also has end of line characters, then: strf = strfind(A,sprintf('\n')); B = {''}; if ~isempty(strf) ...

fast 15 Jahre vor | 0

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Extract windows from signals
Are you processing that window of samples inside the loop where you create your "windows" variable. Or are you saving it to do p...

fast 15 Jahre vor | 0

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Insert & Edit Matlab figures inside Power Point presentations
Probably not. Is it not possible to run Matlab (with those figures open) in the background during the presentation? That way if ...

fast 15 Jahre vor | 0

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Spline curves ( circular biarcs)
As long as 3 points are not on a line, then these points will fall on a circle. A method I used (a long time ago) was to create ...

fast 15 Jahre vor | 1

Frage


Location of warning in code doesn't seem to correspond with actual warning
I have a GUI that contains listboxes, radio buttons, push buttons and other edit boxes. I have a piece of code that updates an e...

fast 15 Jahre vor | 1 Antwort | 0

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