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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

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Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

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Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

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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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Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

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Return area of square
Side of square=input=a Area=output=b

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Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

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Create a vector
Create a vector from 0 to n by intervals of 2.

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Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

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Find max
Find the maximum value of a given vector or matrix.

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

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Inner product of two vectors
Find the inner product of two vectors.

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

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Find corresponding values for unique values in a matrix
m= accumarray(A(:),B(:)); d=find(m); C=[d m(d)]

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dataset - add a new row and fill in data in a loop
"The dataset data type is not recommended. To work with heterogeneous data, use the MATLAB® table data type instead" data=readt...

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Error using tabular/addvars (line 174) Variables must have the same number of rows as the table they are being added to.
for i = 1:numel(B) B{i}.Properties.VariableNames = upper(B{i}.Properties.VariableNames);%change all variable names end ne...

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How do I set up a function to split up a randomly generated vector into an "if,else" statements to resize it in equal portions of 1, 2, or 3 rows
clc array = [1 2 3 4 5 6 7 8 9 10 11 12];%1:12 do the same s=1:numel(array); fac = s(rem(numel(array),s)==0); allpos=arrayfu...

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How does a matrix sort based on another matrix?
Solution: C=zeros(size(B)); C(sub2ind(size(B),repmat((1:size(B,1))',1,size(B,2)),A))=B

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Converting all arrays inside a cell to tables
newC is 40x32, each cell is a table 336x1 : newC = cellfun(@(x) table(x(:)), C, 'uniformoutput', false)

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How to replace a range of pixel values with another range of pixel values within my image?
yourimage(34,70:80,:)=yourimage(34,60:70,:)

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