# emehmetcik

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Times 2 - START HERE

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

nästan 4 år 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...

nästan 5 år 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...

nästan 6 år ago | 1 answer | 0

### 1

answerPlotting 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 %...

mer än 8 år ago | 2

| accepted

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_...

nästan 9 år 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 ...

nästan 9 år ago | 0

| accepted

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...

nästan 9 år 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...

nästan 9 år 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 ...

ungefär 9 år 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')

mer än 9 år ago | 0

| accepted

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...

mer än 9 år ago | 0

| accepted

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,...

mer än 9 år ago | 1

| accepted

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...

mer än 9 år ago | 1

| accepted

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...

mer än 9 år 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...

mer än 9 år ago | 1

| accepted

Imagesc and plot on the same graph with two scale

Hi, You can use imagesc() function with x, y and z inputs. These inputs does not necessarily be the same size as required by...

mer än 9 år ago | 0

Automatically close parenthesis when we open it

I think this is something related to the text editor preferences. You can try changing the editor used by Matlab. In File->Prefe...

mer än 9 år ago | 0