Answered
FFT of a selected range of points
Dear Aqua, Please be aware. You probably going to need a window! If you only take the fft of a section without properly sepa...

9 years ago | 0

Answered
what does blue colour in frequency representation of audio signal indicates?
You are plotting a stereo signal with 2 channels. One channel is in green and one is in blue. Plot them in separate figure...

9 years ago | 0

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How to fit a mixture of uniform and gaussian distributions
Hi Maria, What is a uniform distribution? something like a DC offset? Is it like a constant added to the Gaussian? See if ...

9 years ago | 0

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Find if a point lies bellow or above a curve
Hi TY Yes, you can easily do this. I actually done it before, I had series of points and I draw a line with mouse (2 points) ...

9 years ago | 0

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Answered
error when trying to fit a custom function using cftool
Hi Guys, Well done for providing the equations. It worked fine for me, I attached an image <</matlabcentral/answe...

9 years ago | 0

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Read a binary file of format float
Hi Alon, As a C# programmer you know that "it fails" is not enough! <http://uk.mathworks.com/help/matlab/ref/fopen.html ha...

9 years ago | 0

Answered
How to Write Table to Excel with headers
Hi Samantha, I usually use xlswrite() which then I add the headers as soon as I generate the file. You can give it a try i...

9 years ago | 0

Answered
filtering Recorded Lung Noise
Hi, Have you tried filtering your data, very simply with a low pass filter? I've attached a recursive single pole low pass...

9 years ago | 0

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Answered
If I want to show the path of a heat source as it moves, is it possible to mark the path with numbers?
Hi Chris, You can use text() command. It puts a text in the current position, you can set the string as a number with num2...

9 years ago | 0

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Answered
How to scale a dataset to fit an other dataset?
Hi, I recently found about Savitzky-Golay filter, which I think you will like it very much for your application. Have a lo...

9 years ago | 0

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Answered
How to make a plot using two variables
Hi Hamit, I don't thin if you have any problem plotting in a loop, you just need to organize your data and address them with ...

9 years ago | 0

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how can i convert hourly data for a year to daily data?
Hi Abdulla, You may wanna have a look at reshape() function. Put your data in a column, (apparently its a vector now) ...

9 years ago | 0

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Answered
How to read multiple images without renaming images like 10_left.jpeg, 13_left.jpeg, 15_left.jpeg
Hi Hassan, Obviously your files names have a pattern. You can make a for loop and create the file names for i = 10...

9 years ago | 0

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Answered
How to refer to parameter from function in the loop.
Dear Michael, You used y in your myfunc.m function, so it is not recognized in another function if you don't return as an out...

9 years ago | 0

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Answered
When is f negative?
Hi, I can suggest a nasty & a bit dumb solution which would be making 4 for loops. Or maybe 3 would be enough. Make it 4 and ...

9 years ago | 0

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GUI drawing/editing graphs(create nodes, insert edges)
Hi, Have a look at ginput command with which, you can put points in to the graph and draw shapes.

9 years ago | 1

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how to orientation of all the fragments or images according to the orientation of text.
Hi, You can use radon transform to detect the rotation angle. I think you have to detect the minimum column or row of the rad...

9 years ago | 0

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Answered
How to execute 2 functions simultaneously in the same loop on a GUI
Ok Adam, that's a bit better now! Generally that's not a good way of keeping the track of time. you can make the while loop r...

9 years ago | 0

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How to load the data in this case?
Hi, Is that a excel file?! I don't get what you mean by loading. If you just want to select some values do it like this. ...

9 years ago | 0

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Answered
How to Subtract a matrix from another matrix of different size?
Hi Tanmoy, You are almost close First check which row of the matrix a is equal to b for that you can use isequal you ca...

9 years ago | 0

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how full square matrix first column as second column in matlab
Hi Singh, It sounds a little bit confusing. So if I'm wrong (which I probably am) please give us further clue on what you exa...

9 years ago | 0

Answered
How To Smooth The Image Edge
Salam Behnam! I guess by smoothing you mean getting rid of the jagged edges. What do you think of performing a dilation wi...

9 years ago | 0

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Answered
automatically updating input image
Hi, Have a look at the _uigetfile_ command see if helps. If not then you can specify a folder, read all the files inside...

9 years ago | 0

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Making a program recursive
Hi Andy! I'm not sure if I understood your problem, so let me explain what I understood first! And if it is not what you mean...

9 years ago | 0

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Answered
How to add NaN to a matrix with few empty elements?
Hi, I don't think there is an easy way to do this, if you convert them at once you will end up with x = 12555.... an...

9 years ago | 0

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Why does the time scale for a ifft depend on the frequency interval of the frequency signal?
Dear David, I'm afraid you are a little confused. Nyquist rate is different from what you're talking about. please see this ...

9 years ago | 0

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Why does the time scale for a ifft depend on the frequency interval of the frequency signal?
I don't quite understand your question! You may have a signal collected with the sampling frequency of _Fs_ for a long time. ...

9 years ago | 0

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How do i add buttons in my output image??
You need to make a GUI perhaps, and the easiest way is to use MATLAB Graphical User Interface Design Environment (guide). Typ...

9 years ago | 0

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having complexity in figures?
Hi Atas, You can either use a figure command to open a separate figure window. Take it's handle and use it for your further s...

9 years ago | 0

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Answered
Taking the Log Power Spectrum of a given frame of a time-domain signal
Dear Darryl, I think you're looking for something called Short-Time Fourier transform. Which as you said applies a moving win...

9 years ago | 0