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How do I shift columns (left or right) in a matrix
I used the vectorization capability of MATLAB, so it is faster and there is no need for a for loop. data = rand (5,16); chann...

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Where can i find the power calculation block in simulink?
Go to library browser. Then open Simulink > Quick insert > Math operations. You can find the Power block here. Or Instead of ...

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How can I fit 3-D scatter points with value?
If your model for the relationship between (theta, r, z) triplets and the pressure is linear, use regress. Otherwise, use lsqcur...

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bar graph with variation in x axis
Use the following code. You replace your data with DataY. figure ('Position', [293,243,900,420]); DataX = (20:30:620)'; ...

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How to plot sine waves in x and y-axes simultaneously?
You should first create the horizontal sine and then rotate it for pi/2 using rotation matrix to get the vertical sine. You can ...

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genetic algorithm to optimize the variable of linear regression(a,b1,b2)
First of all, you should use regress for multiple linear regression. However, if you want to know whether it is possible to use ...

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Why Global Optimization toolbox is codenamed "gads"?
MATLAB toolboxes have straightforward codenames. For example, stats for Statistics and Machine Learning toolbox, optim for Optim...

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MATLAB/NOMAD for global optima?
Your problem is a bound-constrained problem with five decision variables. I think many solvers in the Global Optimization toolbo...

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Product of three 1d vectors and a 3d array
aPermuted = a(:); bPermuted = permute (b(:),[2,1,3]); cPermuted = permute (c(:),[3,2,1]); Z = T .* aPermuted .* bPermuted ....

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How to group boxplots on matlab
boxchart is introduced in 2020a and is much more flexible than boxplot and has an option for plot grouping. boxchart documenta...

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Time based output at simulink
You can simply connect it to the next block :)

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Plot area with equation
r = 50; NumPoints = 500; [UnitX,UnitY,UnitZ] = sphere (NumPoints); RealX = r * UnitX; RealY = r * UnitY; RealZ = r * Un...

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Time based output at simulink
You can use "Display" block to view the last value or "To Workspace" block and set it to return the last value to the base works...

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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

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Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...

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Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

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Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

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Make roundn function
Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

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Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

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Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

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Matlab Basics - Rounding II
Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

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Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

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MATLAB Basic: rounding IV
Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

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MATLAB Basic: rounding III
Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

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MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

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MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

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