Answered
What is the best way to zoom this graph so there is no white space?
pix = dir('*.png'); for k = 1:numel(pix) figure imshow(imread(pix(k).name)) end Add this line after the plot: x...

2 years ago | 0

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table2timetable with Time as double
The resample function works with timetable arrays. See Resample Nonuniformly Sampled Data in Timetable for an example. Times...

2 years ago | 0

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How apply trapz on the double definite integral
You have not provided enough information to write specific code. As a general rule, to use double integration with trapz, cre...

2 years ago | 0

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Plot a surface for a 3D matrix 2x361x360
Taking a wild guess (since the actual matrix has not been provided, and I don’t know how you want them plotted) — A = rand(2,3...

2 years ago | 0

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Answered
read and store data from struct file during each iteration in the for loop
I am not certain what result you want. Try this — % load('matlab') % whos('-file', 'matlab') % % Measurements field...

2 years ago | 0

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Answered
How to add hat in the plot legend?
Perhaps this — x = (0:10); y = rand(11,2); figure plot(x, y(:,1), '-g', 'DisplayName','$i_a^{true}$', 'LineWidth',2) ho...

2 years ago | 0

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How to filter rows from excel in matlab
There are two principal options. If you are only importing the dates as strings, use the weekday function — D = '12 May 202...

2 years ago | 0

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Read Garmin .fit file function
@Gabri — According to the information in the Programming Languages section of the links you provided (thank you), the SDK suppor...

2 years ago | 0

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function handle with input parameters
I am not certain that I understand what you want to do. One approach: function y = fun_Htimesx(x, H , transx_many, transy_m...

2 years ago | 1

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how to use audiowrite
You did not actually ask a question. However I get the impression that ‘dmfs’ is complex, and that is not going to work. Th...

2 years ago | 0

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Answered
Unable to fully filter out a tone with a notch filter.
It is not possible to run your code. The filter may be working, however note that it is only order 2. That may be appropria...

2 years ago | 0

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Choosing a suitable fit for the graph
I would choose a different function, perhaps something similar to with appropriate additional parameters. Then use findpeaks t...

2 years ago | 1

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Make Parametric Curves Plot Smoother
I do not see any problems. The issue you are probably dealing with has to do with the finite resolution of your monitor, and the...

2 years ago | 0

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Answered
The results of the plots does not match the actual ones
There may have been a problem converting degrees to radian measure, however that is not required in MATLAB. Use trigonometric f...

2 years ago | 1

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Scatter plot and linear regression
It would help to have your data and a description of what you want to plot and regress against what else. Then, use the lslin...

2 years ago | 0

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I am new to matlab and I'm trying to filter the noise out of the audio. I tried some filters but can't event get close to lessening the noise.
If it contains broadband noise, a frequency-selective filter will not be able to eliminate the noise. In that event, experiment...

2 years ago | 1

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Answered
remove inf in quiver
Without having ‘u’ and ‘v’ to work with, perhaps something like this using fillmissing (or fillmissing2) — x=-5:0.1:5; y=-5:...

2 years ago | 1

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How can I calculate the gradient of a vector in MATLAB?
That depends on how you want to do it. The Symbolic Math Toolbox has the gradient and jacobian functions. To do it numeri...

2 years ago | 0

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How to draw an inclined cone with an ellipse base in the three-dimensional XYZ coordinate system?
Start with the cylinder function, then modify it to create the sort of tilted cone you want. Example — r = [1 0]; ...

2 years ago | 1

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Swapping X and Y Axis of a Figure for a One-layer Matrix
I can’t run your code. Try this — contourf(E.') instead. That will transpose the matrix. so it should display the way y...

2 years ago | 2

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Answered
Generate a time series from power spectral density
In that event, just create a sine curve of the appropriate frequency or frequencies as determined by the PSD result. This will ...

2 years ago | 0

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Answered
Trying to find the integral under the curve at a certain bandwidth
Try this — clear all close all clc L=10; n=1.45; c=2.9979e8; dt = 6e-12; T=10*2*L*n/c; t = (-T/2/dt:1:T/2/dt)*dt; N...

2 years ago | 0

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Answered
Prepare Fourier Amplitude Spectrum from ground motion record (Peak-Acceleration vs time-period)
Perhaps this — T1 = readtable('india.19911019...at_output.txt'); T1.Properties.VariableNames = {'Peak Acceleration','Time'} ...

2 years ago | 0

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Other ways to improve fft amplitude
Another option may be to zero-pad the fft using: Fs = signal_sampling_frequency L = signal_length; NFFT = 2^nextpow2(L) FTs...

2 years ago | 1

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Answered
How can I write a set of first order ODEs with two variables?
Try something like this — syms D g m t x(t) y(t) Y dx = diff(x); d2x = diff(dx); dy = diff(y); d2y = diff(dy); DEqn1 ...

2 years ago | 1

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Recover signal from single-sided spectrum using ifft
The problem appears (to me) that you are using the absolute value (‘P2’) of the fft result. This essentially discards the phase...

2 years ago | 0

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FFT to a simple sine wave
I am not certain what the independent variable axis is (the label is cut off), however if you want a power spectral density plot...

2 years ago | 0

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I am recieving an error in creating the solution however it still prints a result.
In the last iteration of the loop, the results are all empty. One way to avoid the error is to test for at least one field to ...

2 years ago | 0

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Answered
Solving ODE using laplace
Your code looks correct to me, and when I checked the result with dsolve, its solution agreees with yours — syms t s y(t) Y X ...

2 years ago | 0

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Old Matlab example of 1D FFT filter
The only function that I am aware of that might do what you want is the fftfilt function (introduced before R2006a). It require...

2 years ago | 0

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