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Ned Gulley


Last seen: 2 days ago

MathWorks

403 total contributions since 2011

I work on the MATLAB Central and MATLAB Interface teams. See also http://www.starchamber.com/

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Solved


Elements with highest local average
Input v is a row vector such that length(v)>3. Consider a sliding window of length 3 that is used to calculate the local average...

6 days ago

Solved


Combine Data With Gaps
Combine data sets a and b where the datasets have "gaps" or unique points. Example: Input a = [1,0; 2,1; ...

6 days ago

Solved


Split array into pieces according to corresponding array
An array x of length n has values 1...m with each value appearing at least once. The values are sorted (n>=m). A second...

8 days ago

Solved


Sum my indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

8 days ago

Solved


longest sequence of nans
In an array return the length of longest sequence of nans for each column. x = [ 2 3 1 2 5 6; nan nan 5 n...

8 days ago

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Find indices of diagonal elements
Given a matrix A and a diagonal index d (where 0 indicates the main diagonal and off-diagonals are identified by positive and n...

9 days ago

Solved


Hard limit function
Classify x data as if x>=0 then y=1 if x<0 then y=0 Example x = [ -2 -1 0 1 2] y = [ 0 0 1 1 1]

9 days ago

Solved


How close to a hole
Suppose you have a description of good places (ones) and bad places (zeros). You want to know your distance from a bad place (in...

10 days ago

Solved


Find the distance between runs
Another question inspired by the <http://uk.mathworks.com/matlabcentral/answers/?s_tid=gn_mlc_an answers forum>: A vector of ...

10 days ago

Solved


Project Euler: Problem 5, Smallest multiple
2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smalle...

2 months ago

Published


Images in Cody Problems
Today I get to tell you about a feature I’ve been lusting after for years: proper rich text in Cody with embedded images....

2 months ago

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Problem


Find an inscribed square on a closed curve

2 months ago | 2 | 6 solvers

Published


Double Your Pleasure – Fun with Shifty Digits
You’re in for a guest-blogging treat today. But first… What is the relationship between the number 1947 and 7194? Look...

3 months ago

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Published


Cody Problem Visualization, Revisited
Way back in 2013 I did a blog post about visualizing Cody problems. The idea was to take various metrics for each problem...

3 months ago

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Published


Chan Zuckerberg Initiative Funding Open for MATLAB Community Toolboxes
Today’s post is a guest entry from Vijay Iyer, Neuroscience Community Liaison at MathWorks. MATLAB users in research have a...

4 months ago

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Published


MathWorks Documentation has a fresh look: Check out our new Help Center
You may have noticed that MATLAB Online Documentation now sports a different UI. For this post, I’d like to welcome Wendy...

5 months ago

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Published


Circles All the Way Down
This is a story about how ideas  and code bounce around our shared social spaces. This one went from Twitter to GitHub to...

6 months ago

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Ordinal numbers
Given an integer n, return the corresponding ordinal number as a character string. For example, ord(1)='1st' ord(2)=...

6 months ago

Solved


Split a string into chunks of specified length
Given a string and a vector of integers, break the string into chunks whose lengths are given by the elements of the vector. Ex...

6 months ago

Solved


Cell Counting: How Many Draws?
You are given a cell array containing information about a number of soccer games. Each cell contains one of the following: * ...

6 months ago

Solved


Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifm...

6 months ago

Submitted


Private Cody Leaderboard
This code creates a private leaderboard for Cody players.

6 months ago | 3 downloads |

Solved


Successive zeros
Suppose n is the number of digits a number contains. Now, 12032 - is a valid n=5 digit number. But 10023 - is defined as i...

7 months ago

Solved


Create a vector of n alternating ones and zeros
Given n, your output should be a vector y of numbers such that the first number is 1 and the numbers following it alternate betw...

7 months ago

Solved


Find Elements in Range
Based on a question on <http://www.mathworks.com/matlabcentral/answers/ MATLAB Answers>. Find all the elements of a vector wh...

7 months ago

Solved


Pancake sorting
Sort a stack of pancakes by flipping them using spatula. * There are _N_ pancakes with diameters _1:N_. * Spatula can be ins...

7 months ago

Published


Community Q&A – Kalyan Acharjya
Kalyan Acharjya has been contributing to MATLAB Answers since 2017. This past year his participation skyrocketed and he is...

7 months ago

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Published


Stay Connected using MATLAB and Simulink
Due to the global COVID-19 pandemic, engineers and scientists are finding themselves suddenly working from home or other...

7 months ago

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Published


New Decade, New MATLAB Mobile
You may have noticed that MATLAB Mobile now sports a different UI. For this post, I’d like to welcome Geeta Sonigra, our...

7 months ago

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Published


Nor’easters and Wind Roses
Where I live, in the northeast part of the United States, we have a special storm that goes by the name “nor’easter”. Do we...

7 months ago

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