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Akiva Gordon

MathWorks

Con actividad desde 2012

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what does sin(pi*[-Fs:1/Fs:Fs] )mean?
Let's break it down into smaller chunks: This line creates a vector from -Fs to Fs with increments of 1/Fs vector = -F...

casi 12 años hace | 2

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Button output in GUI
It seems like having all of the buttons share a callback is a good idea for this situation. One good way to share data betwee...

alrededor de 12 años hace | 1

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How can I reduce the time complexity of this matlab code.. Its taking lot of time to execute when an image is fed as input.
Also, try to avoid using |eval|. Look at this link to see why: <http://www.mathworks.com/matlabcentral/answers/51946-systemat...

alrededor de 12 años hace | 0

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Not enough inputs error
Pressing the "Run" button on this class runs |card| in the Command Window. This is being called with no inputs, but according to...

alrededor de 12 años hace | 0

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how can i append a matrix n times
You are looking for the |repmat| function. B = [1 2]; C = repmat(B,1,600) This will repeat matrix |B| for 1 row and...

alrededor de 12 años hace | 1

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How we can calculate using MATLAB for small values?
You must first create an anonymous function to be able to evaluate the function like that: This means "f" is a function with ...

alrededor de 12 años hace | 0

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plotting multiple boxplots in the same figure window
Are you familiar with the SUBPLOT function? This may be what you are looking for… <http://www.mathworks.com/help/matlab/ref/s...

alrededor de 12 años hace | 1

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financial portfolio optimization using fmincon?
If you want the sigma passed into POPTIM to be also passed into PSIGMA, you do not need to specify sigma as an input parameter t...

alrededor de 12 años hace | 0

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reshaping data to fit contour plot requirements
This strongly depends on how the data in "z" is stored. If the first 31 values in "z" represent the values for x = 30 & y = 15:4...

alrededor de 12 años hace | 0

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GUIDE Callbacks using function handles or strings
In the GUI's OpeningFcn, you can try: set(handles.object,'Callback',@cb) and just replace "object" with the actual tag o...

alrededor de 12 años hace | 0

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uipanel does not appear in GUI
The value for the FontSize property must be numeric, not a character string. Remove the single quotes around the _12_, and that ...

alrededor de 12 años hace | 2

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How to output result to static text uicontrol?
This is likely not working because diff(f) is of type SYM, and the SET function is expecting a string of type CHAR. In order to ...

alrededor de 12 años hace | 1

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Subplot a matrix within a single Graph
For some random data of 40 rows, 4 columns, this plots a line plot data = rand(40,4); for i = 1:size(data,2) ...

alrededor de 12 años hace | 0

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How do I create a vector of 20 elements with the numbers 1,2,3,4,5 repeated four times?
You can create a smaller vector of the repeating entries and then repeat this vector with the REPMAT function for 1 row and 4 co...

alrededor de 12 años hace | 2

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adding folder to the path option
Adding a folder to the MATLAB path adds it only for the current MATLAB session. In order to save this path for a future MATLAB s...

alrededor de 12 años hace | 1

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uicontrol assigning values a a user defined date
A couple of things: # The switch/case algorithm you have there does not hold true for many of the months, e.g. there are 31 d...

alrededor de 12 años hace | 0

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User-Defined Function Help?
Please see the following related question/answer: <http://www.mathworks.com/matlabcentral/answers/53100#answer_64689>

alrededor de 12 años hace | 0

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how to automatically import multiple excel files, each contains 3D coordinates, into matlab?
The naming model that you suggest is not really the best way to name your variables. Consider the following: Get the list of ...

alrededor de 12 años hace | 0

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How to use find function to get log of the values?
Use logical indexing to accomplish this: A = [8 14 3; -13 1 42; -39 -8 15]; B = zeros(size(A)); Valid indices are...

alrededor de 12 años hace | 0

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Not Enough Input Arguments
Your function defines 2 input arguments (w and theta_deg). When you run Mec134function, you must specify exactly two inputs, oth...

alrededor de 12 años hace | 25

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Changing multiple structure vales
% Setup structure "S" S.a = 11; S.b = 22; S.c = 33; S.d = 44; % This is the list of fields in "S" that I ...

alrededor de 12 años hace | 0