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); % ...

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 ...

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...

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...

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

| accepted

Answered

Callback functions for displaying videos

% In app constructor ... % Initialize image app.Figure = figure('Name','Main Video GUI'); app.VidAx = axes(app1.Figure,'...

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

| accepted

Answered

create struct with nx1 dimension

StructName = struct('FieldName1',cell(2,1),'FieldName2',cell(2,1)); % or StructName = struct('FieldName1',[],'FieldName2',[]);...

create struct with nx1 dimension

StructName = struct('FieldName1',cell(2,1),'FieldName2',cell(2,1)); % or StructName = struct('FieldName1',[],'FieldName2',[]);...

10 months ago | 0

| accepted

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...

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','...

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

| accepted

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));

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...

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

| accepted

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...

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