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Omar Ali Muhammed


Last seen: mehr als ein Jahr vor |  Aktiv seit 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...

fast 3 Jahre vor | 1 Antwort | 0

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Frage


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...

fast 3 Jahre vor | 3 Antworten | 1

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Frage


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...

fast 3 Jahre vor | 2 Antworten | 0

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Frage


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...

etwa 3 Jahre vor | 0 Antworten | 0

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Frage


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...

etwa 3 Jahre vor | 1 Antwort | 0

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Frage


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...

etwa 3 Jahre vor | 1 Antwort | 0

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Gelöst


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

etwa 3 Jahre vor

Gelöst


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 ...

etwa 3 Jahre vor

Gelöst


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

etwa 3 Jahre vor

Gelöst


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 ...

etwa 3 Jahre vor

Gelöst


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

etwa 3 Jahre vor

Gelöst


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

etwa 3 Jahre vor

Gelöst


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

etwa 3 Jahre vor

Gelöst


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

etwa 3 Jahre vor

Gelöst


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...

etwa 3 Jahre vor

Gelöst


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 ...

etwa 3 Jahre vor

Frage


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 ...

etwa 3 Jahre vor | 1 Antwort | 0

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Antwort

Beantwortet
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(...

etwa 3 Jahre vor | 0

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Frage


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...

etwa 3 Jahre vor | 1 Antwort | 0

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Frage


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...

etwa 3 Jahre vor | 1 Antwort | 0

1

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Frage


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...

etwa 3 Jahre vor | 1 Antwort | 0

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Antwort

Beantwortet
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

etwa 3 Jahre vor | 0