Gayan Lankeshwara

Last seen: bijna 2 jaar ago | Active since 2020

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Finding row indices of a cell array containing a certain element
I hae the following cell array. arr = cell(4,1); arr{1,1}=1:3:15; arr{2,1}=2:2:20; arr{3,1}=3:3:30; arr{4,1}=0:4:10; %...

meer dan 2 jaar ago | 1 answer | 0

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Obtaining half-spaces from the convex hull in MATLAB
I have determined the convex hull of certain points in 2-D plane using convhull function in MATLAB. For example, P = [0 0; 1 1...

bijna 3 jaar ago | 3 answers | 0

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Can I use ismember to compare a vector with a matrix
Hi there, Imagine I have an array and a matrix as below. array_sample = [10;20;30] matrix_sample = [15,35,10;22,33,44;55,25,3...

ongeveer 4 jaar ago | 3 answers | 0

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How can I modify the datetime ticks used in heatmaps
I am using datetime ticks to represent the x-axis as given in the following MWE code. %% random heatmap h1 = heatmap(rand(60))...

meer dan 4 jaar ago | 1 answer | 0

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Using a Matlab file as an input argument in a function ?
Assume that I have a sampledata.mat array and I have to input it into a function myfun. I have defined the function as below....

meer dan 4 jaar ago | 1 answer | 0

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Is it possible to export a figure in Live editor as .eps
I just need to know whether I can export a figure in the Live Editor as .eps ? I can only find options to export as .png, .pdf,...

meer dan 4 jaar ago | 1 answer | 0

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Changing the xticks in a heatmap to a datetime ticks
I need to change the xticks of the following matrix to be in datetime format. randMatrix = rand(5,10) heatmap(randMatrix) If...

meer dan 4 jaar ago | 1 answer | 0

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Creating a mesh plot with data in a timetable
Hi there, Assume that I create a time table based on a matrix as follows. X = rand(5,3); Time = seconds(1:5); TT = array2tim...

meer dan 4 jaar ago | 2 answers | 0

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Problem with generating random numbers when performing a Monte carlo simulation in Matlab ?
Hi there, I am performing a Monte carlo simulation and this is the code for it. clc; clear all; num_simulations = 1000 ...

meer dan 4 jaar ago | 0 answers | 0

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How to generate a random number from a user defined discrete uniform distribution in Matlab ?
Hi there, Imagine that I have written the following code in MATLAB. numItems = 100 ; Levels = [0.25, 0.5, 0.75, 1.0] prob = ...

meer dan 4 jaar ago | 1 answer | 0

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The figure window remains unresponsive after copying a figure in MATLAB ?
Hi there, I am running MATLAB on a MacBook Air installed with macOS Catalina 10.15.4. When I try to generate a figure and copy...

meer dan 4 jaar ago | 1 answer | 0

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How to utilise the MATLAB debugger mode to initialise a random iteration in a FOR loop ?
Hi there, Just imagine that I have a for loop in a code as show below. for count = 1 : 100 do something end I have foun...

meer dan 4 jaar ago | 1 answer | 0

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How to change certain values of a column in a table depending on a certain time range ?
Hi there, I have an array Total and then I created a timetable to combine them together. t1 = datetime(2020,04,01, 0,0,0); t2...

meer dan 4 jaar ago | 1 answer | 0

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meer dan 4 jaar ago

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Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

meer dan 4 jaar ago

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meer dan 4 jaar ago

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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...

meer dan 4 jaar ago

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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 ...

meer dan 4 jaar ago

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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| ...

meer dan 4 jaar ago

Solved

Solve a System of Linear Equations
*Example*: If a system of linear equations in _x&#8321_ and _x&#8322_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

meer dan 4 jaar ago

Solved

Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

meer dan 4 jaar ago

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Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

meer dan 4 jaar ago

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Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

meer dan 4 jaar ago

Solved

Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

meer dan 4 jaar ago

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

meer dan 4 jaar ago

Gayan Lankeshwara

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