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Ned Gulley


Last seen: 1 day ago

MathWorks

416 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


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...

3 days ago

Published


MATLAB Drive and British Coal
The other day I received this email from my friend Jos. Very thoughtful of him! After a recent meeting, we were discussing...

1 month ago

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Virtual Workshops with Black Girls Code and MissionSAFE
Guest bloggers Ishaani, a MathWorks UX Specialist, and Vidya Gopalakrishnan, a MathWorks Senior Technical Writer, bring you...

2 months ago

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How Long Is a Winter’s Day?
Happy December! The days sure seem longer in the winter. Of course, there are fewer hours of daylight. But the actual span...

3 months ago

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Solved


Fix the last element of a cell array
Note: this is lifted directly from <http://www.mathworks.com/matlabcentral/answers/82825-puzzler-for-a-monday Puzzler for a Mond...

3 months ago

Solved


Convert a numerical matrix into a cell array of strings
Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

3 months ago

Solved


Proper Factors
Generate the proper factors of input integer _x_ and return them in ascending order. For more information on proper factors, ref...

3 months ago

Solved


QWERTY coordinates
Given a lowercase letter or a digit as input, return the row where that letter appears on a <http://en.wikipedia.org/wiki/Keyboa...

3 months ago

Solved


QWERTY Shift Code Decoder
Decode a string encoded using the QWERTY shift code. QWERTY shift code is where the message was touch typed but with an offse...

3 months ago

Solved


Word Distance - Sum
Let's suppose that the distance of a word can be calculated by summing the differences between its letters, having assigned the ...

3 months ago

Solved


Count letters occurence in text, specific to words with a given length.
Build a function with two input arguments: a string and a word length (number of letters), that outputs a vector of counts of th...

3 months ago

Solved


Data decompression
A chunk of data is to be 'decompressed'. Input: * compressed: a row vector of uint8 values. This is the compressed data. ...

3 months ago

Solved


Alphabetize by last name
Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

3 months ago

Published


Savitha Talks About Kubernetes
I’m happy this week to be talking to a fellow MathWorker: Savitha Raghunathan. Why, you may ask, should I use the MATLAB...

4 months ago

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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...

4 months ago

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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; ...

4 months 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...

4 months 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...

4 months ago

Solved


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...

4 months 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]

4 months 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...

4 months 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 ...

4 months ago

Published


New Cody Contest Underway
Because of the amazing contributions from community members like you, Cody has lots and lots of interesting problems to...

5 months ago

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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...

6 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....

6 months ago

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Problem


Find an inscribed square on a closed curve

6 months ago | 3 | 7 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...

7 months ago

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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...

7 months ago

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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...

8 months ago

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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...

9 months ago

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