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# Rowan Lawrence

Last seen: 21 dagar ago Active since 2019

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Separating "Binary" Masks Into Separate Files
Hello! I have a number of participants each of which have binary masks in NIFTI / .nii files for 14 different brain structures i...

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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]; ...

mer än 3 år ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

mer än 3 år ago

Question

MEX - 'Initialization From Incompatible Pointer Type' Warning
Hello, I'm learning basic MEX programming and have been writing some utility functions over the last couple of days. I noticed ...

mer än 3 år ago | 1 answer | 0

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Strange MEX Compile Issue
I am currently using MATLAB 2019a (Research Licence) and am writing some MEX utility functions. I have finished a couple of scr...

mer än 3 år ago | 0 answers | 0

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Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

mer än 3 år ago

Question

Combine Multiple Tokens to Match Using regexp
Hello, I need to match two single quotes in a string using regexp(); unless I missed it in the official documentation, I have on...

mer än 3 år ago | 1 answer | 0

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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...

mer än 3 år ago

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

mer än 3 år ago

Solved

Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

mer än 3 år ago

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Given a and b, return the sum a+b in c.

mer än 3 år ago

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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...

mer än 3 år 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...

mer än 3 år ago

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

mer än 3 år ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

mer än 3 år ago

Solved

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...

mer än 3 år 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:...

mer än 3 år ago

Question

Using the Mod Function to Turn a Vector (i.e. 1:15) into [1, 2, 3, 1, 2, 3, 1, 2, 3] etc.
I'm currently reading through the book MATLAB for Clinical and Cognitive Scientists by Mike Cohen. In the book, he mentions a 'n...

nästan 4 år ago | 4 answers | 0

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Question

Is there an equivalent to the '+=' operator in MATLAB?
Hello, When I've programmed in C and C++ before I've used the '+=' operator, which is a shorthand way of adding a given value ...

nästan 4 år ago | 1 answer | 0

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Any way to use British spellings for function calls and arguments?
This is really a very minor gripe, but the amount of times I'll be typing out several lines of code or several subplots and run ...

nästan 4 år ago | 3 answers | 0