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Curve fitting and parameter estimation with lsqcurvefit
If you look at your data, I do not believe that there is any way to use your ‘SEIR’ model to fit them — T1 = readtable('infec...

2 years ago | 0

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How to normalize the baseline of multiple Differential Pulse Voltammetry Curves?
Without actually having the data to work with, my first approach would be to use the detrend function on each curve.

2 years ago | 1

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Scatter graph trend line adjustment and outlier removal
The only option that I can suggest is the rmoutliers function. You will have to experiment with it to get the result you want....

2 years ago | 0

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How do I plot 14th and 86th percentile?
Use the prctile function to calculate those percentiles.

2 years ago | 0

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how to rename columns with names like Var2_1, Var2_2...?
Probably the easiest way: data.Properties.VariableNames(2:end) = {'Var2','Var3','Var4'}; Example — data = array2table(rand(...

2 years ago | 1

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Create multi slopes from a profile
I am not certain what you want. This code performs a linear regression on the line clusters and then plots it for each of them....

2 years ago | 0

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Searching for Transferfunction between two functions
Use the System Identification Toolbox. The actual transfer function is probably a simple delay term or that includes one, for...

2 years ago | 0

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What is the best way to zoom this graph so there is no white space?
pix = dir('*.png'); for k = 1:numel(pix) figure imshow(imread(pix(k).name)) end Add this line after the plot: x...

2 years ago | 0

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table2timetable with Time as double
The resample function works with timetable arrays. See Resample Nonuniformly Sampled Data in Timetable for an example. Times...

2 years ago | 0

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How apply trapz on the double definite integral
You have not provided enough information to write specific code. As a general rule, to use double integration with trapz, cre...

2 years ago | 0

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Plot a surface for a 3D matrix 2x361x360
Taking a wild guess (since the actual matrix has not been provided, and I don’t know how you want them plotted) — A = rand(2,3...

2 years ago | 0

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read and store data from struct file during each iteration in the for loop
I am not certain what result you want. Try this — % load('matlab') % whos('-file', 'matlab') % % Measurements field...

2 years ago | 0

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How to add hat in the plot legend?
Perhaps this — x = (0:10); y = rand(11,2); figure plot(x, y(:,1), '-g', 'DisplayName','$i_a^{true}$', 'LineWidth',2) ho...

2 years ago | 0

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How to filter rows from excel in matlab
There are two principal options. If you are only importing the dates as strings, use the weekday function — D = '12 May 202...

2 years ago | 0

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Read Garmin .fit file function
@Gabri — According to the information in the Programming Languages section of the links you provided (thank you), the SDK suppor...

2 years ago | 0

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function handle with input parameters
I am not certain that I understand what you want to do. One approach: function y = fun_Htimesx(x, H , transx_many, transy_m...

2 years ago | 1

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how to use audiowrite
You did not actually ask a question. However I get the impression that ‘dmfs’ is complex, and that is not going to work. Th...

2 years ago | 0

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Unable to fully filter out a tone with a notch filter.
It is not possible to run your code. The filter may be working, however note that it is only order 2. That may be appropria...

2 years ago | 0

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Choosing a suitable fit for the graph
I would choose a different function, perhaps something similar to with appropriate additional parameters. Then use findpeaks t...

2 years ago | 1

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Make Parametric Curves Plot Smoother
I do not see any problems. The issue you are probably dealing with has to do with the finite resolution of your monitor, and the...

2 years ago | 0

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The results of the plots does not match the actual ones
There may have been a problem converting degrees to radian measure, however that is not required in MATLAB. Use trigonometric f...

2 years ago | 1

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Scatter plot and linear regression
It would help to have your data and a description of what you want to plot and regress against what else. Then, use the lslin...

2 years ago | 0

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I am new to matlab and I'm trying to filter the noise out of the audio. I tried some filters but can't event get close to lessening the noise.
If it contains broadband noise, a frequency-selective filter will not be able to eliminate the noise. In that event, experiment...

2 years ago | 1

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remove inf in quiver
Without having ‘u’ and ‘v’ to work with, perhaps something like this using fillmissing (or fillmissing2) — x=-5:0.1:5; y=-5:...

2 years ago | 1

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How can I calculate the gradient of a vector in MATLAB?
That depends on how you want to do it. The Symbolic Math Toolbox has the gradient and jacobian functions. To do it numeri...

2 years ago | 0

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How to draw an inclined cone with an ellipse base in the three-dimensional XYZ coordinate system?
Start with the cylinder function, then modify it to create the sort of tilted cone you want. Example — r = [1 0]; ...

2 years ago | 1

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Swapping X and Y Axis of a Figure for a One-layer Matrix
I can’t run your code. Try this — contourf(E.') instead. That will transpose the matrix. so it should display the way y...

2 years ago | 2

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Generate a time series from power spectral density
In that event, just create a sine curve of the appropriate frequency or frequencies as determined by the PSD result. This will ...

2 years ago | 0

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Trying to find the integral under the curve at a certain bandwidth
Try this — clear all close all clc L=10; n=1.45; c=2.9979e8; dt = 6e-12; T=10*2*L*n/c; t = (-T/2/dt:1:T/2/dt)*dt; N...

2 years ago | 0

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Prepare Fourier Amplitude Spectrum from ground motion record (Peak-Acceleration vs time-period)
Perhaps this — T1 = readtable('india.19911019...at_output.txt'); T1.Properties.VariableNames = {'Peak Acceleration','Time'} ...

2 years ago | 0