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# emehmetcik

Last seen: 1 year ago Active since 2015

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Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

1 year ago

How to use pwelch for PSD?
The way you call "pwelch" function is erroneous: [pxx,f]=pwelch(calxbit, segmentLength, 0.5, nfft, fs); When "pwelch" is calle...

2 years ago | 0

Question

Why is rotate3d not added by default in spectrogram plots in 2018b?
Hi, I tried 2018b release recently and I noted that there are some changes in the usage of visualization tools. For instance pa...

3 years ago | 1 answer | 0

### 1

Plotting while in a for loop doesn't work?
A solution for this problem is "drawnow" function, *assuming that your code is something like this* : for k = 1 : N %...

6 years ago | 1

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How to plot colorful histogram type constellation diagram in Matlab
You can use hist3 function. Here is an example for "Noisy_Data" in your code: figure; z = [real(Noisy_Data), imag(Noisy_...

6 years ago | 0

MATLAB doing wrong polynomial fitting
It is about the numerical precision of the polynomial coefficients. When I use polyfit function (to fit a 9th degree polynomial ...

6 years ago | 0

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How do I add label/Legend, percentage, and explode all at once?
Not an elegant way but try this: x = [0 46 0 57 90]; x_idx = 1 : numel(x); explode = ones(size(x)); xx...

6 years ago | 0

How do I add label/Legend, percentage, and explode all at once?
You can try using very small percentages instead of zeros: x = [0 46 0 57 90]+eps; % Make them all non-zero explode = [0...

6 years ago | 0

3D Plot from finite 2D Plots in each section!
You can use plot3() function. figure; hold on; for j=1:Nj plot3(X(j, :), Y(j, :), j*ones(size(X(j, :)))) end ...

6 years ago | 0

How to exract data from a figure and insert x and y values into a .mat file ?
z = [x(:), y(:)]; save('MatFileName', 'z')

7 years ago | 0

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Does anybody know how to include a legend in a figure of three functions with different colours or patterns?
doc legend %% plot(t,x1,'r'); hold on; % One 'hold on' is enough plot(t,x2,b--o'); plot(t,x3,g--'); le...

7 years ago | 0

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How do I scale a scatter-plot to 250 by 250 using the line data type?
I assume you want to set the axis limits to 0 to 250 for x and 0 to 250 for y. This can be done by "axis"function. axis([0,...

7 years ago | 1

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How can i split a matrix into product of two matrices in matlab?
@John D'Errico You are right about your comment on singularity of a matrix and positive definiteness. I assumed that sin...

7 years ago | 1

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No graphs after plot command
Your output variable "w" mostly consists of "nan" (not a number) values. Probably the result of zero divided by zero at some poi...

7 years ago | 0

How to draw a figure with subplots which can pop up in a new window when I click at them?
Hi, A simple way to do this is to use the button press callback function (ButtonDownFcn): <http://www.mathworks.com/help/m...

7 years ago | 1

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