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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(...

4 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...

4 years ago | 2 answers | 0

### 2

answersQuestion

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...

5 years ago | 1 answer | 0

### 1

answerSolved

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...

5 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...

5 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

6 years ago | 1 answer | 0

### 1

answerhow to subtract and insert a data into a matrix

Perhaps something like the following? % Subtracting and replacing even rows Data = *original data*; UpdatedData = zer...

6 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...

7 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...

7 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...

7 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...

7 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...

7 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...

7 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...

7 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...

7 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 ...

7 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...

7 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]

7 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...

7 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...

7 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 ...

7 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 ...

7 years ago

Solved

Determine if input is odd

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

7 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...

7 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 ...

7 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:...

7 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 ...

8 years ago | 1 answer | 1

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answerQuestion

Hopefully simple UIButtonGroup question

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

8 years ago | 2 answers | 0