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Replace every 3rd element in a vector with 4

x is a vector of undetermined length You are to replace every 3rd element with the number 4, example: x = [11 23 34 43 2 3...

8 months ago

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Test Problem; Create a 5x5 array containing all ones

This is a test for learning the process of creating a Cody problem. The goal of this test problem will be to create an array,...

8 months ago

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Number of 1s in the Binary Representation of a Number

*Description* Return the number of 1s in the (unsigned integer) binary representation of a number. This function should be ab...

8 months ago

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Make a run-length companion vector

Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

8 months ago

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Too mean-spirited

Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

8 months ago

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Vectorize the digits of an Integer

Create a vector of length N for an integer of N digits. x = 123045; x_vec = [1 2 3 0 4 5]; I happened upon a trick ...

8 months ago

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UICBioE240 problem 1.3

Find the length of a vector. So if A = [1 1 1 1 1] Then B = 5

8 months ago

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Create a two dimensional zero matrix

You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...

8 months ago

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Basic arrays operations.

Apply element-by-element binary operation 'fun' to two arrays (A and B).

8 months ago

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How many jokers?

* Given DNA codes of a group of suspects, * and a code for certain types of jokers, * Count how many jokers of that type. * ...

8 months ago

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04 - Scalar Equations 3

Define the variables a, b, and c: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> <<http://samle.dk/STTBDP/Assignment1_4-b....

8 months ago

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03 - Matrix Variables 6

Make _fMat_ be a 5x3 matrix of random integers with values from -3 to 3 (Hint: use *randi*)

8 months ago

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06 - Matrix Equations 2

Define the vectors _aVec_ and _bVec_: <<http://samle.dk/STTBDP/Assignment1_2a.png>> and <<http://samle.dk/STTBDP/Assig...

8 months ago

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multiply by three

Given the variable x as your input, multiply it by 3 and put the result equal to y. Examples: Input x = 2 Output y is ...

8 months ago

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Remove white space from the string

Remove the white spaces (trailing and leading) from the input variable

8 months ago

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2 b | ~ 2 b

Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

8 months ago

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Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]

The given function returns the index of the maximum value in a given matrix. such as X=[4,3,4,5,9,12,0,5] Ans= 6 if maxim...

8 months ago

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Back to basics 6 - Column Vector

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

8 months ago

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Specific Element Count

Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

8 months ago

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Create incrementing array

Given a and b generate an output matrix as shown in following examples: a=2 b=5 output=[2 20 200 2000 20000] a=4 b...

8 months ago

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Matrix indexing with two vectors of indices

Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

8 months ago

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Back to basics 9 - Indexed References

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix and row and column, output the index of th...

8 months ago

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07 - Common functions and indexing 2

Define _eMat_: <<http://samle.dk/STTBDP/Assignment1_3e.png>> Calculate eMean as the mean across the rows of _eMat_. The an...

8 months ago

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Who is the smartest MATLAB programmer?

Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

8 months ago