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Omar Ali Muhammed


Last seen: ungefär en månad ago |  Active since 2021

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Is it possible to generate specific random numbers?
The generation of unique random numbers is done simply through randperm. example function idx=RandNumberSequence(Key,N) % us...

mer än 3 år ago | 1 answer | 0

1

answer

Question


Is it possible to vectorize this?
I want to find the most occurring element in the matrix in column wise excluding zeror elements. e.g if A = [1 2 0 3 4 6; 9 3 4...

mer än 3 år ago | 3 answers | 1

3

answers

Question


Is it possible to vectorize this ?
A matrix A(100x1000) a selective column defined in B(1x1000). The required processing is the mean of non zero elements of each c...

mer än 3 år ago | 2 answers | 0

2

answers

Question


How to return multiple values by colfilt?
A matrix A 1000x1000, needd to be subdivided into patches of 5x5 (let us called B). then B is processed by subdividing it int...

mer än 3 år ago | 0 answers | 0

0

answers

Question


Is it possible to find a seed to generate given set of integers?
Given certain ranfom integer numbers defined over [1 N]. Is it possible to find a SEED that is cappable of doing the inverse op...

mer än 3 år ago | 1 answer | 0

1

answer

Question


How can we plot pixel difference histogram accurately?
function PDH(img1,img2) diffImage2 = imfilter(img2, [1, -1]); diffImage1 = imfilter(img1, [1, -1]); minValue1 = min(diffImage...

mer än 3 år ago | 1 answer | 0

1

answer

Solved


Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

mer än 3 år ago

Solved


Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

mer än 3 år ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

mer än 3 år ago

Solved


Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

mer än 3 år ago

Solved


Find max
Find the maximum value of a given vector or matrix.

mer än 3 år ago

Solved


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

mer än 3 år ago

Solved


Inner product of two vectors
Find the inner product of two vectors.

mer än 3 år ago

Solved


Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

mer än 3 år 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...

mer än 3 år 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 ...

mer än 3 år ago

Question


How can we accurately estimate execution time?
Dear Matlab provides several functions choosing one depends mainly upon execution time. So how we can estimate processing time ...

mer än 3 år ago | 1 answer | 0

1

answer

Answered
How to Vecrorizing conditional vactor mapping problem?
r=A.*3; r(r==0)=1; t1=repelem(B,r); t2=repelem(A,r); t3=t1.*t2; t3=dec2bin(t3)' c=regexprep(t3,'111','001'); c=c-'0'; c(...

mer än 3 år ago | 0

| accepted

Question


How to Vecrorizing conditional vactor mapping problem?
Dear, A is a binary vector its values correspond to the number of times to repeat the corresponding number drawn from the vect...

mer än 3 år ago | 1 answer | 0

1

answer

Question


How to Speedup conditional vector elements replacement?
Dear, a is a vector its values correspond to the number of times to repeat the corresponding number drawn from the vector b. f...

mer än 3 år ago | 1 answer | 0

1

answer

Question


How can I speedup this for loop and ismember?
Due to the large size of the arrays, the following suffers from extremly slow execution. Is it possible to speedup this code. V...

mer än 3 år ago | 1 answer | 0

1

answer

Answered
ismember function too slow
A=[1 2 3 4 5 6 7 8 9 10]; B=[3 4 9]; tt=ismember(B,A); if sum(tt)==3 Do Something; else Do Something; end

mer än 3 år ago | 0