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Max Murphy


Last seen: 24 days ago
121 total contributions since 2017

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Answered
Binning data into a new matrix
Your code is returning counts only because you are only requesting the first output of histcounts yy = my_matrix(:,2); % ...

10 months ago | 0

| accepted

Answered
How to generate a few timing signals as shown below?
Check out rectpuls(t,w); % w controls width of it; need to synthesize time vector and tripuls(T,w,1); % Use value of 1 for s ...

10 months ago | 1

| accepted

Answered
how to write superscripts for x-axis in a boxplot
% h=boxplot(x, g, 'notch','off','label', {'89_{p}','10007_{p}','3067_{M}'}); % You were using subscript operator (_) h=boxplot...

10 months ago | 0

Answered
Replace specific/diagonal elements in Matrix using editor, scripting
% If this is to be called iteratively % Example while loop iteration = 0; while (iteration < numel(data)) % Some conditiona...

10 months ago | 1

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Answered
Callback functions for displaying videos
% In app constructor ... % Initialize image app.Figure = figure('Name','Main Video GUI'); app.VidAx = axes(app1.Figure,'...

10 months ago | 1

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Answered
create struct with nx1 dimension
StructName = struct('FieldName1',cell(2,1),'FieldName2',cell(2,1)); % or StructName = struct('FieldName1',[],'FieldName2',[]);...

10 months ago | 0

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Answered
morphological operation and filtering
Here are some ways of looking at it (although by only specifying baseline I am not sure I know what part of the signal you would...

10 months ago | 1

Answered
Text mining. Using Regular Expression
It depends on how you would like to split the input. As entered, your expression evaluates to >> test = regexpi('string','\x','...

10 months ago | 0

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Solved


Find state names that end with the letter A
Given a list of US states, remove all the states that end with the letter A. Example: Input s1 = 'Alabama Montana Nebras...

10 months ago

Solved


Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

10 months ago

Solved


Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

10 months ago

Solved


Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

10 months ago

Answered
Convert Nx1 matrix into a single number
A=[1 2 3 4 5]; B=str2double(sprintf('%g',A));

10 months ago | 2

Solved


Find the two-word state names
Given a list of states, remove all the states that have two-word names. If s1 = 'Alabama Montana North Carolina Vermont N...

10 months ago

Solved


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 ...

10 months ago

Solved


Kaprekar Steps
6174 is the <http://en.wikipedia.org/wiki/6174_%28number%29 Kaprekar constant>. All natural numbers less than 10,000 (except som...

10 months ago

Solved


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...

10 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 ...

10 months ago

Solved


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...

10 months ago

Answered
Multiplying 3X3 array by a 3x1
You can probably improve on this and in terms of actual efficiency I am not sure it's better than what you have, but I am assumi...

10 months ago | 1

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Answered
i put the following code i got the error of "Unrecognized method, property, or field 'velocity' for class 'timeseries''.
Looks like driving_data is a timeseries class. My guess is your velocity information is stored in the .Data property. Try: v...

10 months ago | 0

Solved


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 ...

10 months ago

Solved


Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

10 months ago

Solved


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

10 months ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

10 months ago

Solved


Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

10 months ago

Solved


Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

10 months ago

Solved


Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

10 months ago

Solved


Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

10 months ago

Solved


Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

10 months ago

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