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How to fix the error
The error message is clear. Put the function at the end of the file and the code works — % Set random seed value rng(123)...

circa un mese fa | 0

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Plotting spectrograph from spectrum analyzer data
Yiour data needed a bit of tweaking. Tehe times in the ‘TimeData’ matrix are contiguous, so they can be converted into a vector...

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Biphasic Pulse signal with FFT
The problem was that ‘wholeSignal’ had 60 more elements than ‘t’ so I artificially shortened it: wholeSignal = wholeSignal(1:n...

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How to count how often a variable returns to zero and then increases from zero
One method to find the first instance of a zero value is to use the strfind function. You can use it again to determine the ind...

circa un mese fa | 0

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How do I compute averages for NOAA SST data?
The easiest way to do this is to use the accumarray function — T1 = readtable('ersst5.nino.mt...-20.ascii.csv', 'VariableNami...

circa un mese fa | 0

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How can i calculate the area under two curves that intersect?
Integrate them using trapz then do what you want with the results (keep them as they are, add them, add their absolute values, ...

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The legend option called interpreter latex does not display the latex symbols correctly
You need to put dollar signs ($) around the string you send to the LaTeX interpreter — plot(1:10,1:10,'DisplayName','$\eta_i$'...

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Transfer function extraction from frequency response
You will need to use the System Identification Toolbox for this. Then: ResponseData = mag.*exp(1j*phase); data = idfrd(Res...

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how to use the hanning window to smooth the photon signal
That appears to be some sort of spectrum. I am not certain what you want to do with it, however windowing it is not likely to p...

circa un mese fa | 0

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how to plot table to line graph with dots ?
There are easier ways to import the table using detectImportOptions, however since it exists as posted, try this — x = str2dou...

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Plotting several plots of respective ranges from an excel file into one single plot
Perhaps this — opts = detectImportOptions('tempDataTrollhFlygpl.xlsx', 'VariableNamingRule','preserve', 'HeaderLines',9); opt...

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scatteredInterpolant using a matrix, F = scatteredInterpolant(x,y,v) form
‘Input data point values have invalid dimension. The data must be specified in column-vector format.’ This holds when you ini...

circa un mese fa | 0

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Find Coefficients of an equation
Using two independent variables is relatively straightforward. You need to concatenate them, then refer to them individually i...

circa un mese fa | 0

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Can someone help me solve this different equation on matlab?
Perhaps this — % 1/r * d/dr(r*dS/dr) + c1 - c2 syms r S(r) c1 c2 S0 DS0 Eqn = 1/r * diff(r*diff(S),r) + c1 - c2 S = dsolv...

circa un mese fa | 0

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How can i 3d plot this table in matlab?
Try this — A1 = readmatrix('cc.csv'); x = A1(1,2:end); y = A1(2:end,1); z = A1(2:end,2:end); figure surf(x,y,z, 'EdgeCo...

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Why can't I run my code? (tfest function)
Run this from a script or your Command Window: which tfest -all It should give you this identical result. If it shows anyt...

circa un mese fa | 0

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To find angular frequency and wave vector for time series data
From what I’ve been able to discover, the ‘minimum vairance method’ is a heirarchical clustering approach. MATLAB has a few way...

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Dealing data with text and numerical in .txt file
I am not certain what you intend by ‘visualize’. Perhaps this — T1 = readtable('M I T 2024 02 17.txt', 'Delimiter',{',',':'...

circa un mese fa | 0

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Compare rows from different columns
One approach — A = randi(50,10,2) Col_2_Larger = A(:,2) > A(:,1) ColNr = find(Col_2_Larger); fprintf('Col 2 larger in row...

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How can I ensure that the initial solution (x0) for fsolve does not result in Inf or NaN values?
The approach I use (if possible) is to plot the function first. Most of the time, it is possible to plot it in one or two dimen...

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How to plot the error of two numerical methods on the same graph?
I cannot run your code because I do not have arguments for the functions. (I tweaked them to make them a bit more efficient.) ...

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How to add ytick as we want in Matlab?
Perhaps setting the 'YScale' to 'log' will do what you want — mean = [10^-3, 10^-4, 10^-5, 10^-6, 10^-7, 10^-8]; variance =...

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Extracting 2 columns from a excel file and send them to an own matrix file
Perhaps something like this — opts = detectImportOptions('tempDataTrollhFlygpl.xlsx', 'NumHeaderLines', 9, 'VariableNamingRul...

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Rotating text to 90 degrees
I’ve never used PsychToolbox, however that would be relatively straightforward in MATLAB graphics — alphabetT = 'T'; figure...

circa un mese fa | 0

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How can I load .trf data files into MATLAB?
There appear to be several different definitions of that extension in an onlilne search. I suggest using the type function fi...

circa un mese fa | 0

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fplot and quiver return "Error using box"
See if you have something else in your MATLAB search path named ‘box’. which box -all That is the only thing I can think of...

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A 2D circle divided into 10 sectors in the 3D plot.
I am not exactly certain what you want. One approach — r = 7.5; ac = linspace(0, 2*pi, 500).'; xc = r*cos(ac); yc = r*si...

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How to add date,time corresponding to some incrementing count data in csv Excel file with help of MATLAB.
You can tell the datetime function how to interpret the available information with the 'InputFormat' name-value pair. See the d...

circa un mese fa | 0

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How to simplify the symbolic expression?
When I simplified it offline, using: Expression = simplify(Expression, 500) this was the result : Expression = Vpo*Vsecm...

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Scattered Interpolant in matlab
The interpolation Method options are 'linear', 'nearest' and 'natural' (natural neighbor interpolation, giving no details that I...

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