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Find the peak 3n+1 sequence value
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...

5 years 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 ...

5 years ago

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Counting in Finnish
Sort a vector of single digit whole numbers alphabetically by their name, in Finnish. See the Wikipedia page for <http://en.wik...

5 years ago

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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 ...

5 years ago

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Clean the List of Names
Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...

5 years ago

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Renaming a field in a structure array
MATLAB has a <http://www.mathworks.com/help/techdoc/ref/setfield.html setfield> and a <http://www.mathworks.com/help/techdoc/ref...

5 years ago

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Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

5 years ago

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Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

5 years ago

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Implement a ROT13 cipher
Replace each character in string s1 with the character that is shifted 13 positions from it (wrap back to the beginning if neces...

5 years ago

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

5 years ago

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Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

5 years ago

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Test for balanced parentheses
Given the input inStr, give the boolean output out indicating whether all the parentheses are balanced. Examples: * If ...

5 years 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...

5 years 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...

5 years ago

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

5 years ago

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Function Iterator
Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

5 years ago

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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...

5 years ago

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

5 years 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...

5 years ago

Answered
"Standalone Named User” license question
Speak to Mathworks support regarding the standalone named user license. They can convert it to a network named user license, whi...

5 years ago | 1

| accepted

Answered
How to plot/use numerous values in single cell?
Brian, This example should be a good starting point. % Setting up some test data x = rand(40,3); data = cell(3,800...

5 years ago | 0

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Answered
How do I make a MATLAB created table properly appear in EXCEL?
Brad, Each row of Make is a collection of strings that cannot be concatenated automagically. You can concatenate the strin...

5 years ago | 1

| accepted

Answered
How to save table in workspace as txt/.m file in matlab ?
You can use *writetable* to write to a text file. writetable(data,'outputfile.txt'); If you really need this to be a .m ...

5 years ago | 0

Answered
Fastest Way of Opening and Reading .csv Files (Currently using xlsread)
Thankfully, you don't need to interact with Excel to read csv files. You can use <http://www.mathworks.com/help/matlab/ref/texts...

5 years ago | 2

| accepted

Answered
Interleaving columns of two cell arrays
Here's a function I wrote for you. It contains a subfunction to create the interleaving index. Save this to interleaveCells.m an...

5 years ago | 0

| accepted

Answered
modify all vectors in workspace
Joel, I will preface this by saying you really shouldn't have variables floating around your workspace without knowing their ...

5 years ago | 0

Answered
Different correlation results using matrix with NaN values
Falco, The documentation for corrcoef indicates that 'complete' is the 'rows' value corresponding to your first calculation. ...

5 years ago | 0

Answered
write cell array of strings in text file
filePh = fopen('features.txt','w'); fprintf(filePh,'%s\n',Strings{:}); fclose(filePh);

5 years ago | 8

| accepted

Answered
save cell array of strings and doubles to excel file
You can write cells directly to the file. If you're using xlswrite, you should specify a target file with an .xls or .xlsx exten...

5 years ago | 3

| accepted

Solved


Remove all the words that end with "ain"
Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

5 years ago

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