Answered

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...

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...

2 hours ago | 0

Answered

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 ...

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 ...

1 day ago | 0

Answered

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...

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...

1 day ago | 0

Answered

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)'; ...

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)'; ...

3 days ago | 0

Answered

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 ...

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 ...

4 days ago | 0

| accepted

Answered

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 ...

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 ...

19 days ago | 0

Question

Why Global Optimization toolbox is codenamed "gads"?

MATLAB toolboxes have straightforward codenames. For example, stats for Statistics and Machine Learning toolbox, optim for Optim...

19 days ago | 1 answer | 1

Answered

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...

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...

19 days ago | 0

Answered

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 ....

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 ....

22 days ago | 0

| accepted

Answered

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...

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...

22 days ago | 0

Answered

Time based output at simulink

You can simply connect it to the next block :)

Time based output at simulink

You can simply connect it to the next block :)

22 days ago | 0

Answered

Plot area with equation

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

Plot area with equation

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

22 days ago | 0

| accepted

Answered

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...

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...

22 days ago | 0

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

Find MPG of Lightest Cars

The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

2 months ago

Solved

Find the Best Hotels

Given three input variables: * |hotels| - a list of hotel names * |ratings| - their ratings in a city * |cutoff| - the rat...

2 months ago

Solved

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...

2 months ago

Solved

Calculate BMI

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

2 months ago

Solved

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| ...

2 months ago

Solved

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) ...

2 months ago

Solved

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...

2 months ago

Solved

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

2 months ago

Solved

Matlab Basics - Rounding II

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

2 months ago

Solved

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...

2 months ago

Solved

MATLAB Basic: rounding IV

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

2 months ago

Solved

MATLAB Basic: rounding III

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

2 months ago

Solved

MATLAB Basic: rounding II

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

2 months ago

Solved

MATLAB Basic: rounding

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

2 months ago