Question

Problem having isoutlier detecting anything

I have what looks like a very easy problem but I cannot seem to solve it. I have a dataset (attached) that has some obvious (to ...

environ un an ago | 2 answers | 0

Question

Code execution in GUI

I am trying to build my first GUI. I have what I think is a very dumb question. The GUI has a button that, when pressed, asks th...

environ un an ago | 2 answers | 0

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Replace NaNs with the number that appears to its left in the row.

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

plus de 2 ans ago

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Triangle sequence

A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

environ 3 ans ago

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Free passes for everyone!

_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

environ 3 ans ago

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Transparent figures from 2014b are not transparent when pasted to outside programs

Atfer contacting MathWorks support, I was told that this is a known bug in 2014b. The problem has been fixed in 2015a. If you ca...

Transparent figures from 2014b are not transparent when pasted to outside programs

Atfer contacting MathWorks support, I was told that this is a known bug in 2014b. The problem has been fixed in 2015a. If you ca...

presque 4 ans ago | 1

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Question

Best practice when coding for loops?

Hello everyone! When I code using for loops I always struggle between two methods of indexing. (Assume I can't do without using ...

presque 4 ans ago | 3 answers | 0

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Screen is flickering at Matlab startup for 2014b

After an email conversation with a MathWorks employee I determined that the problem was an outdated NVIDIA video card driver. Th...

Screen is flickering at Matlab startup for 2014b

After an email conversation with a MathWorks employee I determined that the problem was an outdated NVIDIA video card driver. Th...

environ 4 ans ago | 0

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The Goldbach Conjecture

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

plus de 4 ans ago

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mixing two signals together

By the way, "mixing" in signal processing means multiplying. However after looking at the spectrum of the signals I am taking th...

mixing two signals together

By the way, "mixing" in signal processing means multiplying. However after looking at the spectrum of the signals I am taking th...

plus de 4 ans ago | 0

| accepted

Answered

mixing two signals together

Your code as a number of very basic programming errors. For example: length(y) = 0:1/fs: 70000; This makes no sense, sin...

mixing two signals together

Your code as a number of very basic programming errors. For example: length(y) = 0:1/fs: 70000; This makes no sense, sin...

plus de 4 ans ago | 0

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Simple equation: Annual salary

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

plus de 4 ans ago

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Tic Tac Toe FTW

Given a tic tac toe board: * 1 represents X * 0 represents empty. * -1 represents O It is X's move. If there is an imme...

plus de 4 ans ago

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Making change

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 = ...

plus de 4 ans ago

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Duplicates

Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

plus de 4 ans ago

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Find the two most distant points

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

plus de 4 ans ago

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Sums with Excluded Digits

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...

plus de 4 ans ago

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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]

plus de 4 ans ago

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What is the next step in Conway's Life?

Given a matrix A that represents the state of <http://en.wikipedia.org/wiki/Conway's_Game_of_Life Conway's game of Life> at one ...

plus de 4 ans ago

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Maximum running product for a string of numbers

Given a string s representing a list of numbers, find the five consecutive numbers that multiply to form the largest number. Spe...

plus de 4 ans ago

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Trimming Spaces

Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

plus de 4 ans ago

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Subset Sum

Given a vector v of integers and an integer n, return the the indices of v (as a row vector in ascending order) that sum to n. I...

plus de 4 ans ago

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Make a Palindrome Number

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

plus de 4 ans ago

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Find the alphabetic word product

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, ....

plus de 4 ans ago

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Cell joiner

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...

plus de 4 ans ago

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Which values occur exactly three times?

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...

plus de 4 ans ago

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Return a list sorted by number of occurrences

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 ...

plus de 4 ans ago

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Reverse Run-Length Encoder

Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

plus de 4 ans ago

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Find relatively common elements in matrix rows

You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

plus de 4 ans ago

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Extract leading non-zero digit

<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

plus de 4 ans ago