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This submission is a realization of the Hilbert-Huang transform (HHT).

188 downloads

5 months ago

Given a matrix a, return a matrix b in which all the zeros have "bubbled" to the top. That is, any zeros in a given column shoul...

Solve this!

4 years ago

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provide...

Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

Check if sorted. Example: Input x = [1 2 0] Output y is 0

Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

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...

Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

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