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Problem of finding lag when using xcorr
Yes, running this gives a max lag at 0. That is indicating that y matches x the best in their current positions. Shifting y by a...

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decrease calculation accuracy to speed up running time
The reason your algorithm is taking so much time is because of the line COPT(u+1,:)=[]; What happens when you delete an entry ...

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RLC Circuit Equation Implementation-Runge Kutta
Instead of this derriv_value = L*y(3)+R*y(2)+(1/C)*y; Do you mean this? derriv_value = L*y(3)+R*y(2)+(1/C)*y(1);

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You have the vectors time, and u1d (etc) outside of the ode45 call. And you also have the output t from the ode45 call. So,you c...

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Output of mscohere function
Yes, these are the coherence values between the two channels at the frequencies returned in F. You can manually set the frequenc...

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Integration of Velocity data to Displacement
Use |cumtrapz| as in displacement = cumtrapz(velocity)/fs; % where fs is your sampling rate Then you can assess afterwar...

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How to change ONLY Xtick direction (or Ytick direction)
You have to set the properties of the specific axis. figure plot(1:10) ax = gca; xax = ax.XAxis; % xax = get(ax,'XAxis'); ...

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lines are not continuous
It's not perfect, but it might be sufficient. That's up to you. Play with the different values for dipreset. You might want to s...

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remove outliers form timeseries
If timevector is the name of your datetime vector, then you can mask out the outliers using timevector_good = timevector(~TF); ...

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Creating a color map of green and blue
Perhaps one of these colormap functions by Chad Greene would be useful to you: https://www.mathworks.com/matlabcentral/fileexch...

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How to remove the background noise from a signal?
Seems like you have determined what you want your threshold to be. You can set those values to zero (or whatever the mean of y...

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How can I remove the default transparency of graph edges?
set(P,'EdgeAlpha',1);

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How can I find the width of the peaks when presented with a digital signal-like plot?
Use the pulsewidth function with the argument MidPercentReferenceLevel set to 0 or 1 (the lowest value). Here is an example: x ...

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using variables in a parfor loop
I think it's because you're using d as the source and the sink in your loop, and you're assigning to d in a way that can make pr...

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Is there a way to use different sets of input arguments for one function?
It just requires you to check the type of each input argument. I think it would be easier to use a struct (or even an object) wi...

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EEG is a voltage signal in time domain (voltage amplitude vs time). how can we convert this EEG into amplitude vs frequency?
To convert from the time domain to the frequency domain, use the *fft* function. Though you might actually get more use out of t...

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EEG data preprocessing in matlab and EEGLAB
It seems pretty clear what the differences are. F is using a different file format. Choose your favourite. S is an option whethe...

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Signal Processing EEG ECG
One method would be to use a moving RMS calculation over a small time window. You should know what a reasonable rms value is (ba...

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Bandpass Filtering EEG Data
Here's your problem tmp(tmp==0)=NaN; Don't do that.

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How to Plot(Time, Voltage) so that transient is captured for different inputs
One possible idea is to use a multiple of the time constant for the circuit. For a parallel RLC circuit this is 2RC, and for ser...

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Smoothing a roughly sinusoidal signal
So are you saying you want to remove the frequency of the blue signal from the brown signal? Fairly easy, just use a notch/bands...

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Signal similarity analysis after cross correlation
Wouldn't it work just to set the threshold higher? It depends on what you mean by matching. If you want the exact same signal, ...

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calculate snr of digital signal
This is not correct. The second input to snr must be a real-valued row or column vector that must have the same dimensions as th...

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DTMF decoder .wav files code
It's a problem with your window size. Like I mentioned in a previous iteration of this question, you can look detect a proper wi...

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How do I generate a given Matrix in one command?
T = toeplitz([1 -1 0 0 0 0],[1 8 0 0 0 0])+diag(0:5)

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How to plot data with very small differences
You can try using *stem* or *scatter* or playing the *axis* limits. Or just plot the residuals, which is a pretty standard thing...

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Two outputs when calculating standard error of mean, WHY?
It's because size(A) returns two outputs. If you want to use the size of A in a particular dimension, use size(A,dim). (Since |s...

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3d Plotting Using Meshgrid
Replace for i=1:1:length(n) for j=1:1:length(m) [X,Y]=meshgrid(i,j); %disp(f(X,Y)); mesh...

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Switch the x axis direction where positive values are on the left side of the y axis
figure plot(1:10) set(gca,'XDir','reverse')

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how do I re-sample a continuous function; but maintain shape?
You can unaccept the answer if you want to keep it open, but also consider this answer. (For 3, I meant you're measuring from r...

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