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Jason


30 total contributions since 2012

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How do I link an image and a histogram of that image so the histogram only represents what is shown in the image, i.e. if I zoom in on the image, the histogram updates?
I was able to get this to work by setting the ActionPostCallback for the zoom function to call a custom function. set(zoom(...

2 years ago | 0

| accepted

Question


How do I link an image and a histogram of that image so the histogram only represents what is shown in the image, i.e. if I zoom in on the image, the histogram updates?
I have a gui with two axes, an image (created using imagesc) and a histogram of that image. I want to add a menu item that will...

2 years ago | 2 answers | 0

2

answers

Question


I'm using imagesc to display data in grayscale. I want to be able to set the color for one particular value to red. How do I accomplish this?
I have a 2-d matrix of type double. I want to display the data while retaining the values in the image. The image is to be dis...

3 years ago | 1 answer | 0

1

answer

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

3 years ago

Question


how do I plot a table to a figure?
I'm playing with tables because I liked how it's displayed and I'd like to display the table in a figure. Is there a simple way...

4 years ago | 1 answer | 0

1

answer

Question


Assistance trying to load 3rd party dll/headers into Matlab
Greetings, I'm not a programmer so please be gentle :) I have a program that was written in C# (I think) that creates a gui ...

4 years ago | 1 answer | 0

1

answer

Answered
how to subtract and insert a data into a matrix
Perhaps something like the following? % Subtracting and replacing even rows Data = *original data*; UpdatedData = zer...

4 years ago | 0

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

5 years ago

Solved


Return the 3n+1 sequence for n
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

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

5 years ago

Solved


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

5 years ago

Solved


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

5 years ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

5 years ago

Solved


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

5 years ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

5 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

5 years ago

Solved


Cull vector elements that contain a specified digit
Given inputs of (1) a row vector and (2) a digit, identify the elements of that vector that contain the digit, remove them, and ...

5 years ago

Solved


Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

5 years ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

5 years ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

5 years ago

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

5 years ago

Solved


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

5 years ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

5 years ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

5 years ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

5 years ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

5 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

5 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

5 years ago

Question


Bug, feature, or misuse? Issue with map container
I'm using Matlab 2012a and I'm trying out map containers and I came across what I think is a bug. I have a variable which is a ...

6 years ago | 1 answer | 0

1

answer

Question


Hopefully simple UIButtonGroup question
I created a UIButtonGroup and instantiated several radiobuttons. I'm using the SelectionChangeFcn callback properly for the rad...

7 years ago | 2 answers | 0

2

answers