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

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 ...

4 days ago

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...

1 month 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; ...

1 month ago

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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...

1 month ago

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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...

1 month ago

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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...

1 month 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...

1 month ago

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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]

1 month 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...

1 month ago

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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 ...

1 month 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...

3 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....

3 months ago

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...

4 months ago

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...

4 months ago

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...

5 months ago

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...

6 months ago

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...

7 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)=...

7 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...

7 months ago

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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: * ...

7 months ago

Solved

Guess Cipher

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

7 months ago

Submitted

Private Cody Leaderboard

This code creates a private leaderboard for Cody players.

7 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...

8 months ago

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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...

8 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...

8 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...

8 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...

8 months ago

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...

8 months ago

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...

8 months ago