Answered
How to make error bars on double bar graph?
I have no idea when XEndPoints and YEndPoints was introduced, however it was relatively recently (within the last few years). ...

10 días ago | 0

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Answered
Best Text/number location on the plot
One approach is to use the legend position after using the 'Location','best' name-value pair, and then interpolating the relativ...

10 días ago | 0

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Answered
How to customize a colormap?
Another option — cm = colormap(turbo(6)); cm = colormap(flipud(turbo(6))); % Optional cb ...

10 días ago | 0

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Answered
exctract data from 50 curves in .fig
The argument to openfig should be a single .fig file, so supply the appropriate information for ‘filename’ here. Other than t...

10 días ago | 0

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Looking for a way to copy an IGOR Pro function in MatLab
You can do something similar with something like this (that I have turned into a funciton) — x = linspace(0, 10*pi, 250); y =...

11 días ago | 1

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Answered
How can I remove harmonics from my spectrogram?
If you know the frequency of the fundamental (that is what I assume you are referring to), use the bandpass function on the time...

11 días ago | 0

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How to find the maximum value of C that corresponds to a set of X,Y coordinates?
The spectrogram plot is actually a surf plot with the view set to display it looking from the top, so the ‘Z’ values will give y...

11 días ago | 1

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Answered
How do I convert a specific string to a date ?
Note the Comment by @Stephen23. That aside, try this— DT = datetime('22-07-04T013:09:42Z', 'InputFormat','dd-MM-yy''T''HHH:...

12 días ago | 0

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Answered
Interpolation for x,y,z values
The data in the file do not appear to resemble the data in the image. For those, the fillmissing function (R2016b and later r...

12 días ago | 0

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Answered
Plot 2D surf from 3 columns (X, Y, Data)
Try something like this — Tmag = readtable('FileName', 'VariableNamingRule','preserve'); x = Tmag{:,1}; y = Tmag{:,2}; z = ...

12 días ago | 0

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How to extract a value/s from a matrix that match with specific rows
One possibility is to use the findgroups function to select the appropriate rows, then use that to index into the data. type ...

12 días ago | 0

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Answered
Does the initial population matrix have to satisfy constraints genetic algorithm matlab
The initial population matrix does not have to satisfy the constraints. Subsequent generations will, at least in my experienc...

12 días ago | 0

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What frequency range does fft compute?
The first element of the output of the fft function is the constant or DC offsets (mean values) of the original time domain vect...

12 días ago | 0

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Answered
Multiply only certain columns in a matrix with a constant
Another approach — M = rand(5,9) % Shorter Version Of 'M' c = 1000; ...

12 días ago | 0

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Answered
Index exceeds the number of array elements. Index must not exceed 0.
A variable with zero elements is empty. The error could be referring to the empty first argument in the function call.

12 días ago | 0

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Bode diagram for a Butterworth filter
Use the freqz function — Fs = 60; % Sampling Frequency Fn = Fs/2; ...

12 días ago | 0

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Plot ODE45 data in a surface
One option for creating a surface from two vectors is to multiply the transpose of one with the other so that the first vector i...

14 días ago | 0

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Not really understanding why cdata isn't working
The ‘cdata’ matrix only exists if you create it. See the heatmap documentation section Create Heatmap from Matrix Data for de...

14 días ago | 0

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Select zone of the plot
This can certainly be done, however it is definitely not trivial! Try this — LD = load('Miguel Albuquerque azimuth3.mat'); ...

14 días ago | 0

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Answered
What is Symbolic Math Toolbox and how to get it
For a description, see Symbolic Math Toolbox. Getting it depends on what type of license you have (university, individual, et...

14 días ago | 1

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Answered
Plot electric field in plane
Try this — M1 = readmatrix('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1077575/data.txt') [U1,ix1] = uniq...

14 días ago | 0

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Answered
Filter data through a bandpass FIR
That’s a problem with FIR filters, simply because in most instances they tend to be very long vectors. Use an IIR filter inst...

14 días ago | 0

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How to find inverse of filter such that product of filter and its inverse results in a flat spectrum
The easiest way to find out is to do the experiment — Fs = 1E+5; t = linspace(0, 1E+5, 1E+6)/Fs; fc = [1 2 4]*1E+4; s = sum...

14 días ago | 0

Answered
MATLAB fixing dates that are flipped
The first variable is imported as a cell character array, so it has to be changed to a datetime array for the rest of this to wo...

15 días ago | 0

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Answered
Shading Between Two Lines
It would be easier with your data. Assuming that all the vectors are coiumn vectors — HH = linspace(4, 20).'; LWAC = 10*(1...

15 días ago | 0

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How to extract wandering baseline
There are several options, however the one I usually use is first to calculate the Fourier transform of the signal using the fft...

15 días ago | 0

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How to set up Paris Law Integral
Since ‘K’ is a funciton of ‘x’ it needs to be created as an anonymous function, and for whatever reason, the integrand ‘fun’ cre...

16 días ago | 1

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Answered
How to extract corresponding x axis value in improfile.
Try this (using an example from the improfile documentation) — I = imread('liftingbody.png'); x = [19 427 416 77]; y = [9...

16 días ago | 1

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Answered
From a matrix creating a vector
Use the unique and accumarray or histcounts functions. This appears to be homework, so I leave the coding to you.

17 días ago | 0

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Answered
Count the number of "aggregate" peaks in a vector?
I am not certain what result you want. Here, findpeaks finds 21 distinct spikes (and their locations) LD = load('buzzerData...

17 días ago | 1

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