From a matrix creating a vector

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Emilia
Emilia 2022-7-24
评论： Star Strider 2022-7-24
Hello,
I have matrix
A=[1 7 3 9 4; 8 6 8 9 1; 7 7 7 8]
I need to find the existing numbers from the matrix and create a vector, for example like this Vector1=[1 3 4 6 7 8 9]
and also count the numbers several times, for example like this Vector2=[2 1 1 1 4 3 2]
Thanks for the helpers :)

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Star Strider
Star Strider 2022-7-24
Use the unique and accumarray or histcounts functions.
This appears to be homework, so I leave the coding to you.

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