Answered
Decomposing the time series of wind turbulance using Fourier series, and computing the spectra.
Try this — T1 = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1125355/data-MOOCTurbulenceDataSerie...

13 days ago | 1

Answered
extract a section of a vector and plot
Perhaps something like this — t = linspace(0, 10, 250); s = sin(2*pi*t); figure plot(t,s) grid [pks,locs] = findpeaks...

13 days ago | 0

Answered
Converting a time field (+000:00:00) in a table to a usable format
Use the second function with the 'secondoofday' argument (or whatever you want from it) — format long G dt = datetime('now'...

14 days ago | 0

Answered
Filter signal with 2 different frequencies
Use either the bandpass or bandstop functions, depending on the result you want. For best results, use the 'ImpulseResponse',...

14 days ago | 0

| accepted

Answered
Add 2 sec. of noise as a reference for a spectrogram infront of a 2 second long sinus function.
Try this — fs = 44200; % Sampling frequency (samples per second) dt = 1/fs; % second...

14 days ago | 0

Answered
How can I have for loop show me each histogram it created rather then play it like a movie?
I am not certain what you are doing or the result you want. I don’t see an end for the for loop, so I assume everything is in t...

14 days ago | 0

| accepted

Answered
How do you get realistic textures when shading graphs?
I am not certain what result you want. One option is to interpolate the ‘mycolors’ matrix — x = @(r, t) r.*cos(t); y = @(r...

14 days ago | 0

Answered
Converting tremor data in to frequency and filter data
The fft plots are straightforward, however only the acceleration signals make sense. The ‘Gyr’ signals exhibit broadband noise....

14 days ago | 0

Answered
PLOT surface using 3 vectors of same length (NEED HELP!!!)
The code produces vectors, so I would simply reshape them, using the number of unique elements in ‘i’ to determine one of the di...

15 days ago | 0

Answered
Find rows based on set of values/codes
I am not certain what you want, however the ismember function might be a better option than find for this, especially since ever...

15 days ago | 0

| accepted

Answered
Solve implicit equation for isentropic flow
When in doubt, plot the function — Aratio=4; g=1.4; % fcn = @(M) (1./M).*((2/(g+1)).*(1+(((g-1)/2).*M.^2)).^((g+1)/(2*(g-1))...

15 days ago | 0

| accepted

Answered
Remove periodic noise in Raman spectra by FFT
I have no idea what your spectra look like, however removing truly periodic noise would likely be appropriate for a digital filt...

15 days ago | 0

Answered
RF filer design Matlab
I don’t have the RF Toolbox (since I don’t need it, although earlier as a U.S. Amateur Extra Class Amateur Radio operator, it wo...

15 days ago | 0

Answered
How to generate a nonlinear equation from MATLAB?
Try something like this — X=[0 1 1.1 1.15]; Y=[0 0.0042 0.0097 0.016]; fcn = @(b,x) b(1) .* exp(b(2).*x); format long [B...

16 days ago | 0

| accepted

Answered
help with formatting the title of a set of graphs
Using the sprintf function is one option — i = 1; runType = 'Reducing'; samples{1} = 'AK STEEL'; title(sprintf('Area and \\...

16 days ago | 0

| accepted

Answered
How to plot colorbar and plot size different?
One option would be to stretch the figure by adjusting the 'Position' property. It is possible to re-position it and stretch (o...

16 days ago | 0

| accepted

Answered
delete consecutive commas in txt file
Use readmatrix with additional name-value pair arguments to select the delimiter and combine multiple consecutive delimiters. S...

16 days ago | 1

| accepted

Answered
How to plot multiple curves on the same screen for different values of "b" with bvp4c solver?
The problem is that the initial conditions are uniformly zero, so any change in ‘b’ will not be evident since the entire result ...

16 days ago | 0

| accepted

Answered
How can I compute the Area and the Centroid of the following shape?
The polyshape approach is the easiest way to go on this. However it is possible to calculate this using the trapz function an...

16 days ago | 1

| accepted

Answered
How to know the x projection in this function if the y is known?
Use interp1 to interpolate — xA = 0; xB = 1; xf = 1; x = linspace(0, xf, xf*1e4 + 1); a = 9.2; % c = 0.5; % cen...

16 days ago | 1

| accepted

Answered
Functions only plotting out to x=5
To plot from 0 to 10, change the fplot call to: fplot(y,[0 10]); Then it works without further modification — syms t C1 C2;...

17 days ago | 0

| accepted

Answered
How should I plot the function (sqrt(1 + x) - 1) / x using the values x = 0.1, 0.01, 0.001, ..., 10^-20?
Using the logspace function to create the independent variable ‘x’ vector makes this easier. Plot it as a function of the in...

17 days ago | 0

Answered
filtering excel commands in matlab
I have no idea what you want or the reason a 3D matrix is necessary. A different approach using unstack — T1 = readtable('h...

18 days ago | 0

Answered
print to screen with fromat
Using only the posted data — C = {1 '10-Sep-2022 09:16:46' 45.000 3.000 1.000 3.850 5.200 11.250 9.300 -0.04...

18 days ago | 0

| accepted

Answered
Solving system of two (non)-linear eqautions multiple times using a for loop
I am not certain what the problem is, however putting square brackets [] around the variables you want to solve for may do what ...

18 days ago | 0

| accepted

Answered
Movavg function doesn't compute values for the entire timeseries
Use the fillmissing function — LD = load(websave('august_filtered_data','https://www.mathworks.com/matlabcentral/answers/uploa...

18 days ago | 0

| accepted

Answered
denoise non stationary signal
I have nothing against using wavelets to denoise a signal, however I generally find the sgolayfilt function useful in eliminatin...

19 days ago | 0

| accepted

Answered
plot a time series data
Try this — T1 = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1120695/sample.csv', 'VariableNaming...

19 days ago | 0

| accepted

Answered
how to draw a cube with planes
This is generally how to draw the patch plots in 3D. You organised them well, however they still need a bit of revision to pl...

19 days ago | 1

| accepted

Answered
How do you integrate a very long equation on MATLAB?
Use the vpaintegral function — syms x y = 0.5+x^0.6532; %incremental surface yuse = sqrt(1+(diff(y))^2); %pressure along t...

19 days ago | 0

Load more