Answered
How to detect the specific area from an oscilloscope signal
Perhaps something like this — jpgs = dir('*.jpg'); csvs = dir('*.csv'); for k = 1:numel(jpgs) figure imshow(imre...

2 years ago | 1

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Answered
Symbolic expression simplification and shortening
The expression is apparently incomplete. Working with what is provided — syms e e1 e2 h1 h2 h3 A B U = 108*A^2*e^7*e1^3*...

2 years ago | 0

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Answered
How do I check if there is a function with the same name
The which function can be helpful. which which -all If there are any others in your MATLAB search path, it should display th...

2 years ago | 2

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How to italicize a portion of a plot label while keeping the sans-serif font?
A lot of the LaTeX options do not work in MATLAB because many of the font options are not supported. That aside, use \it to b...

2 years ago | 0

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Answered
Peak coming at 50Hz in every data file. How to get rid of that
If you have the Signal Processing Toolbox, use the bandstop function: Fs = ...; ...

2 years ago | 0

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how can I find the intersect point of 1 plot and a yline ?
Use interp1 for this — x = [0 10 20 30 40 50 60 70 80 90]; y = [0 0.0328 0.2521 0.7975 1.7295 3.0213 4.5714 6.2283 7.819...

2 years ago | 1

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Answered
OBTENTION OF AN ABSORBANCE SPECTRA FROM AN IMAGE
Without some sort of calibration, what you want to do might not be possible, especially if the resolution is only integers on th...

2 years ago | 0

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Indexing of cell array and a vector
One approach — index = {[0], [0], [5], [0], [6, 7], [0], [0], [1], [0], [0], [0], [ 3]} ; data = [100, 10, 20, 15, 11, 25, 2...

2 years ago | 0

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Answered
how to choose windwo size in the EMG signal ?
I am not certain where you read it either, or the rationale for that particular window length calculation. I am not aware of ...

2 years ago | 0

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Answered
How can I read CDF file?
Without having the file to work with, writing specific code to work with it is not possible. Start with the cdfread function...

2 years ago | 0

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Answered
How to store users input in a file?
If you want to read the file, try something like this — % name = input('What is your name? ','s'); % age = input('How old are...

2 years ago | 0

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How do I fit a 3rd order polynomial Basis using fitrgp?
From the documentation, using a table as input: Each row of Tbl corresponds to one observation, and each column corresponds to...

2 years ago | 0

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Answered
Displaying Text on Paper
Without knowing more about this, one option would be to use the axis function to extend the axis limits. Then the text function...

2 years ago | 0

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How to use Matlab to generate a discrete uniformly distributed decimal with a value range of {0, 0.05} and a step size of 0.01?
Perhaps something like this — rv = randi([0 5], 1, 100)/100 figure histogram(rv, 5) grid .

2 years ago | 0

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Answered
User defined function for curve fitting, but the defined function is complicated
I thought it had something to do with scaling . That would depend on the magnitude of since it might be difficult to fit extre...

2 years ago | 0

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Answered
Creating ID using year and event number
Try this — load('sample.mat') whos('-file','sample.mat') sample count = cumsum([1; diff(sample.Var1) < 0]); ID = year(...

2 years ago | 0

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Answered
Smoothing or special techniques to resolve uncertain peaks are required!!
If you want to make it smooth, there are a few options. One of course is to calculate the Fourier transform, choose a suitable ...

2 years ago | 2

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Answered
How can I import 2D antenna radiation pattern into 2D cartesian coordinates environment?
I am not certain what you want or what your current data are. (I also do not have significant experience with the Antenna Toolb...

2 years ago | 0

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Answered
Hello, How can I make the output timetable look similar in the photo, so it will 901*1 instead of 901*3
You can do that once, however if you write it and then read it, it will lose the original formatting. To illustrate — Time ...

2 years ago | 0

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Answered
Data Organization in ECG Analysis: Separate Leads or Individual Signals
I am not certain what you want to do, or what question you are asking. In general, EKG data are analysed column-wise, with a t...

2 years ago | 0

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Answered
Multiple Regression and Intercept
I see nothing wrong with the code, and it conforms to the example in the regress documentation. The only suggestion I have is...

2 years ago | 1

Answered
Plotting Cylinder Surface Using fill3
It is easier to use the surf function for this — % figure() % theta = 0:0.5:2*pi; theta = linspace(0, 2*pi, 11); xs = [cos(...

2 years ago | 0

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Answered
Is the pvalue from an lmfit table derived from a two-sided or one-sided t-test?
For what it’s worth, when I updated my polyparci function, I used a default two-sided t-distribution to calculate the probabilit...

2 years ago | 1

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Answered
I want to solve the equation in the picture and use ode45 to solve it, but after running for 5 hours there is still no result, I would like to ask if the program is written wrong or is there any optimization?
The system is ‘stiff’ probably because of the large variation in the magnitudes of the parameters. Using a stiff solver (ode1...

2 years ago | 0

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Answered
Plot frequency responses based on the ODE results
I am not certain what result you want. The freqz function only works on Signal Ptocessing Toolbox filter results. To use the C...

2 years ago | 0

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Answered
How do I perform a sin^2 or a cos^2 fit for my data?
Perhaps this — x = [0,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180]; y = [880,1200,1900,2700,3300,3600,3000...

2 years ago | 0

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Answered
Training, validating, and testing model.
Perhaps I am missing something in your problem statement, however linear regressions such as that done by fitlm is a least-squar...

2 years ago | 0

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how can I write a function of another function of two variables
Create the function and then call it in the function — rho = @(t,z) something; mu = @(t,z) c .* log(rho(t,z)*b ./ (1 - rho...

2 years ago | 0

Answered
function where input is also output
You can certainly return the input as an output if you want to. A simple example — x = 42; [result_val, arg_val] = square_...

2 years ago | 0

Answered
Almanac function not work
It works here — format longG ref_pov=almanac("earth","bessel","meter") Since it worked previously, you may have a path pro...

2 years ago | 0