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Improve convergence of GD with momentum
Hello, I have made a simple implementation of the GD algorithm with momentum and it seems to me that convergence is very slow, ...

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Extracting 2 columns from a excel file and send them to an own matrix file
Hello, I would do something like this to extract the data, and then I would used writematrix like VBBV suggested to write into ...

Hello. I want to calculate the covariance matrix for a parameter vector Q[1x24].
Is this helpful to you? I have used the example from Matlab documentation. load iddata9 z9 Ts = z9.Ts; y = cumsum(z9.y); mo...

plot data from .mat file

Question

Fixed step solver explanation needed
Hello, I've developed a dedicated MATLAB function to simulate a dynamic response of a system using difference equations. I have...

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Question

Hello to all, I have this Matlab function, i would like to execute in Simulink using "User-Defined->Matlab Function" from the L...

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Reference to rmoutliers() function
Matlab has very powerful documentation. Please have a look here: https://www.mathworks.com/help/matlab/ref/rmoutliers.html

Question

Create plot with gradient descend vectors for function of 2 variables
Hello, I would like to extend this code to a function of two variables z = x.^2+y.^2. I have the following code for a function...

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The multiplication result by sum() and matrix multiplication are not the same
In addition what Walter and Stephen said, if you have some specific application and you need to compare the floating point numbe...

How to plot discrete array with colors
I would also like to offer my solution. It is not so elegant comparing to @Star Strider, but it can show you how bar can be used...

ungefär ett år ago | 0

The sample points must be finite.
Most likely, you're getting the error because you have missing entries in the data. websave("filename.csv","https://www.mathwor...

ungefär ett år ago | 0

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Integration of Numeric Data
I think this small code snippet would be sufficient to give you an idea how to proceed further: clc; clear; % Just for the pu...

ungefär ett år ago | 0

State-Space Matrix Closed Loop System C Matrix issue
This is how I would simulate similar system in simulink. First of all this is the simulation in Matlab script: % Transfer func...

ungefär ett år ago | 1

Can this equation be solved for x? If yes, how does the solution look? Thank you. Karl.
Things become complicated very easy with high degree polynomials. First, this is an example for qudratic equation: syms a b c ...

ungefär ett år ago | 0

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in FFT analysis , this kind of window appear, i cant find THD of signal, please guide.
I would suggest you to look in the documentation. Matlab has a builtin function called thd.

ungefär ett år ago | 0

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How can I combine two vectors with different lenghts and indexes into one sum.
You obviously have missing values in your table. This is how I would approach to this problem: tau = 0:10:80; mu_tau = mean(ta...

ungefär ett år ago | 0

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Predictors in classification learner app
This is explaind in the Matlab documentation here: https://www.mathworks.com/help/stats/feature-selection-and-feature-transform...

ungefär ett år ago | 0

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How to output a tout from Simulink space to Matlab so that it reads the value to us?
Hi @Krzysztof, when I want to access variables from simulink, plot them etc. I use to Workspace block in simulink and choose Ar...

ungefär ett år ago | 0

Unable to perform assignment because the left and right sides have a different number of elements.
Not really sure what you're trying to simulate here. From what I can see in the code, you have created a MIMO system with 4 inp...

ungefär ett år ago | 0

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Beginning and end of the curve isn't linked with points
At the bottom of your script I have added the following code: % Define number of digits numDigits = 10; % Enable data cursor ...

ungefär ett år ago | 0

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fit line to 3D scatterplot
I'm not really sure what you want to achieve here, but if you have X and Y data and want to do a linear fit, then you can constr...

ungefär ett år ago | 0

Customise marker and Line Style 2 value same Y axes in stackedplot
Can you try this: s.LineProperties(1).LineStyle = ["none", "-"]% remove the line for first s.LineProperties(1).Marker = ["x","...

ungefär ett år ago | 0

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"Error using fscanf"
You're getting this error because the path to your file is not correct. this is where the problem is: lightfile = strcat( dir...

ungefär ett år ago | 0

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Find the corresponding matrix
Is this what you need? A =[14 17 19 2 19 12 11 20 20 12 11 7 18 5 16 6]; B = [1;2;4;5;6;11;12;14;17;19;20]; rA = size(...

ungefär ett år ago | 0

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Using variable legend in for loop
Not really sure what you're trying to achieve, especially because abs(z) is always about 0.5, but regarding the legend, I think ...

ungefär ett år ago | 0

List S3 Files and Subdirectories
Well, this small code snippet create a file datastore that include all csv files starting with 'd' or 'D' from the current folde...

ungefär ett år ago | 1

Plotting inside structure array
This may not be the most efficient way, but here is how I would do it. I hope some of many gurus here may suggest more efficien...

ungefär ett år ago | 0