Solved


Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

más de 3 años 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...

más de 3 años ago

Solved


Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

más de 3 años ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

más de 3 años ago

Solved


Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

más de 3 años ago

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...

más de 3 años ago

Solved


Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

más de 3 años ago

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. Examp...

más de 3 años 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...

más de 3 años 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 ...

más de 3 años 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...

más de 3 años 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 ...

más de 3 años 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...

más de 3 años ago

Solved


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

más de 3 años ago

Solved


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

más de 3 años 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 ...

más de 3 años 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...

más de 3 años 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:...

más de 3 años ago

Answered
Can any body tell me how to implement KSVD in matlab?
Here is a function which implements the K-SVD algorithm. function mD = DL_KSVD(mInitD, mX, cardinality) mD ...

más de 4 años ago | 0

Answered
Linear Least Squares With 2 Inequality Constraints
I created a solution. It can be found here: http://math.stackexchange.com/a/1403593/33

casi 5 años ago | 0

| accepted

Question


Linear Least Squares With 2 Inequality Constraints
Hello, I would like to know how can I solve the following Linear Least Squares problem: arg min(x) (Ax - b)'(Ax - b) s....

casi 5 años ago | 2 answers | 0

2

answers

Submitted


Fast Anisotropic Curvature Preserving Smoothing
Fast Anisotropic Curvature Preserving Smoothing for High Quality Image Denoising

casi 5 años ago | 2 downloads |

Answered
Computing Mahalanobis Distance Between Set of Points and Set of Reference Points
Here is the solution fully vectorized (Though uses much more multiplications than needed): mA = reshape(bsxfun(@minus, perm...

casi 5 años ago | 0

| accepted

Question


Computing Mahalanobis Distance Between Set of Points and Set of Reference Points
Hello, I have an n x p matrix - mX which is composed of n points in R^p. I have another m x p matrix - mY which is compo...

casi 5 años ago | 2 answers | 0

2

answers

Answered
Backslash for solving very big sparse matrix in Ax=b
If you're memory limited the best solution I know of is <https://en.wikipedia.org/wiki/Conjugate_gradient_method Conjugate Gradi...

casi 5 años ago | 0

Answered
Weighted k means clustering
Usually the weighting would be using <https://en.wikipedia.org/wiki/Mahalanobis_distance Mahalanobis Distance> Matrix. If I'm...

casi 5 años ago | 0

Answered
Reshape Video Matrix Into Long RGB Matrix and Back
I think I have a solution (At least one). going from video into one lone image: function [ mOutputImage ] = ReshapeVideo...

alrededor de 5 años ago | 0

| accepted

Question


Reshape Video Matrix Into Long RGB Matrix and Back
Hello, Let's say I have a Video Matrix `mVideoMatrix`. This is a 4D matrix (Numnber of Rows x Number of Columns x Number o...

alrededor de 5 años ago | 3 answers | 0

3

answers

Answered
Create a LUT Table by Euclidean Distance
Ok, I created something using the ' <http://www.mathworks.com/matlabcentral/fileexchange/10064-allcomb allcomb> ' function from...

alrededor de 5 años ago | 0

| accepted

Question


Create a LUT Table by Euclidean Distance
Hello, I have a list of N vectors in 3D space (Points in RGB color space). We'll call that our Dictionary. The whole data ...

alrededor de 5 años ago | 1 answer | 0

1

answer

Load more