Answered
Using ss2tf when your matrices are variables without values yet
I would not use the Symbolic Math Toolbox for this! For undefined variables, use anonymous functions for them, and then pass ...

2 years ago | 0

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Answered
Parse error at observed data
It took a few minutes to determine what the problems are with this (there were several). I got it to work. Most of the probl...

2 years ago | 0

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How do I find the width of a curve at 1/e^2 but there are multiple points at this value
The second plot image and your code do not appear to provide the same results, at least with respect to the plot. That aside,...

2 years ago | 0

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Answered
ways to calculate non-linear correlation between two time series in MATLAB?
Your question is ambiguous. First, be certain that both time series are sampled at the same time points. You can use interp1 ...

2 years ago | 0

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how to plot the graph
There is no need to convert it to Excel. It is only necessary to tell readmatrix (introduced in R2019a) that it is a text file,...

2 years ago | 0

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Answered
Transfer Functions on Biologic Data Sets
The data do not appear to have anything in common, and several are missing. (The plots here are sorted by the independent varia...

2 years ago | 0

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EEG data Visualization for .mat file
There are a few ways to do this. Two approaches — Fs = 500; L = 250734; t = seconds(linspace(0, L-1, L).'/Fs); EEG = ran...

2 years ago | 0

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Answered
I open Matlab after a computer crash and the editor is clear . Is there a file which stores which files were open prior to the crash?
The only documentation that I can find for the MATLAB Edittor is matlab.editor Settings. I am not certain where that informat...

2 years ago | 0

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convert a cell Array into another cell
This takes too long to do the entire (1x490) cell array, so I just create an arraya tenth of that. Try this — for k = 1:4...

2 years ago | 0

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Determine the indice of real maximum using accumarray function
I’m not certain what you want or how the .mat file figures into this (since you don’t have a load call or relevant code to deter...

2 years ago | 0

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How to solve this with the help of fplot
A few details are missing ... syms t f(t) = sin(2*pi*t); figure fplot(f, [0 5]) grid yline(0,'--r', 'The roots are wher...

2 years ago | 0

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multiplying a function handle by a constant
‘... how do I multiple the function handle by the constant"h" with out getting the error "Operator '*' is not supported for oper...

2 years ago | 0

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writematrix with tab delimiter inconsistently producing delimiters
It might be possible for you to verify whether the tab characters are ther or not using the funciton after creating the file. ...

2 years ago | 0

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Colorbar with a range taken from a variable
I am not certain what plot you want to use or what result you want. Perhaps something like this — x = linspace( 0, 5); y =...

2 years ago | 0

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Two-sample Anderson-Darling tests
I am not certain what you want, however the two-sample Kolmogorov-Smirnov test (kstest2) appears to be distribution-free, at lea...

2 years ago | 1

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Unable to recreate k-means clustering example
It works correctly in R2024a. (The online documentation reflects the latest update to the current release, and may not run cor...

2 years ago | 1

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Answered
Determining optimal cut off frequency
‘I have been told to filter at a range of frequencies and then calculate the RMSD between the original and filtered data.’ I ...

2 years ago | 0

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Seasonal decomposition of a daily time series
Your data are not regularly-sampled, so it is necessary to use the funciton on them first. After that, calculate the Fourier t...

2 years ago | 0

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Index exceeds the number of array elements. Index must not exceed 101.
I am not certain how to get these into a form that the MATLAB ODE integrators could use, so I did the next best thing, and calcu...

2 years ago | 1

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integrate with the upper limit is a function
The Symbolic Math Toolbox appropriately considers an otherwise undefined function. Define it and you get an actual result — ...

2 years ago | 0

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want to plot a function
Subscript ‘H’ in the loop, then create ‘f’ tto have the same size as ‘H’ and then plot — fv = 0:10:60; tk=0.1; tK=4; theta0...

2 years ago | 0

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Answered
How to fill missing time points from a txt file
The tables may need to be manipulated a bit first. I put relevant times in the first column in ‘T1r’. After that, converting...

2 years ago | 1

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Answered
EDITED : Generate sphere whose center is not at origin
I made a few adjustments to your original code, adding (or changing) only these: p1 = 1:51; p2 = 52:101; figure scatter3(...

2 years ago | 0

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Error Using Rainflow fonction
The rainflow function only takes vector arguments. What result do you want? In the interim,try this — T1 = readtable('Da...

2 years ago | 0

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sorting values of a matrix column when the other column has the same value
Use the sortrows function, sorting the first column then the second column — A = [0.1 0.1 ; 0.1 -0.3 ; 0.1 0.5 ; 0.1 0; 0.1 -0...

2 years ago | 0

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Answered
How to set up the Matrix variables to use Options = optimoptions('lsqcurvefit','algorithm','levenberg-marquardt')
I am not certain how ‘M1T’ and ‘M2T’ enter into this, however witth the ‘K’ values as the independent variables, and the ‘M’ val...

2 years ago | 0

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Answered
how to create vector 1 1 1 1 1 1 2 2 2 2 2 2?
An alternative approach — v = reshape(ones(6,1)*[1 2],1,[]) .

2 years ago | 0

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Integral2 MATLAB Function Error: Q = integral2Calc(fun,xmin,xmax,yminfun,ymaxfun,opstruct);
Note that because ‘zprime’ only enters into your calculations in ‘R’ and that is defined as: R = sqrt(a^2 + (z_prime - z_prim...

2 years ago | 0

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Answered
Reading a text file using readtable, Matlab stubbornly refuses to accept dates in anything but US-format
You need to pass the options structure to readtable. Perhaps something like this — type('Dave_2024_07_26.txt') opts = d...

2 years ago | 0

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Answered
contour plot problem Z must be at least a 2x2 matrix
Anotther option, using the scatteredInterpolant function — x=[80;100;90;90;90] y=[4;4;2;6;4] [X,Y] = meshgrid(x,y); % Polly...

2 years ago | 0

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