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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...

1 year 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...

1 year 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. ...

1 year 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 =...

1 year 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...

1 year 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...

1 year 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 ...

1 year 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...

1 year 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...

1 year 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 — ...

1 year 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...

1 year ago | 0

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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...

1 year ago | 1

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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(...

1 year 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...

1 year 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...

1 year 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...

1 year ago | 0

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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,[]) .

1 year 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...

1 year 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...

1 year ago | 0

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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...

1 year ago | 0

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Answered
islocalmax('flat selection') selecting 0 value points
In the lower plot image, if you are referring to the collection of orange asterisks before the start of the variable section (fo...

1 year ago | 0

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Representation of Gabriel's Horn
If you want it to look more like the image you posted in your question, one option is to use the daspect function.. It allows yo...

1 year ago | 0

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Answered
How to make bar plot with group mean and add scatter plot on top to demonstrate samples within group?
Apparently the group means are the heights of the bars. Try this — MC1 = randn(50,2)*10 + [80 81]; ...

1 year ago | 1

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how to do a contour plot using function handle?
Provide arguments to ‘M’ and it works — T=linspace(0,2*pi,100); d = linspace(0,2*pi,100) ; [X,Y] = meshgrid(T,d);...

1 year ago | 1

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Eliminate the long number appearing in symbolic calculations
You can conttrol the number of digits displayed by including a second argument (here 7) to your vpa call — syms J1 term = ...

1 year ago | 1

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function find() sometimes doesn't work properly
With Floating-Point Numbers you need to use a tolerance, so with find, usually one of the approaches in tthe second loop will wo...

1 year ago | 1

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how can solve this problem : Conversion to cell from double is not possible.
Perhaps — X = fillmissing(X(:), 'nearest'); .

1 year ago | 0

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Interpolate y and y using a 3D vector with similar length
To do the relatively simple first interpolation, use the interp2 function. Tto draw the surface plot, the best option is the ...

1 year ago | 0

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Genetic Algorithm with a graph
I am not certaiin what you want, however creating an options structure using optimoptions and including the name-value pair 'Plo...

1 year ago | 0

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I enabled fft function in oscillioscope and it saved the data as FFT amplitude (dBV) and frequency domain how ever I want my time domain and ampltude signals original data.
You cannot reliably invert a Fourier transforom unless you also have the phase information. Lacking the phase information, you ...

1 year ago | 2

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