Mean values of matrix elements corresponding to increment of fixed column values

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Konstantin Shchukin
Konstantin Shchukin 2024-10-10
编辑： Voss 2024-10-10
Dear colleagues,
let's assume I have next matrix:
A = [0 1; 3 2; 1 3; 7 4; 2 5; 11 6]
And I have incremental row:
dx = [0.5:2:6.5]
With this increment dx I would like to go throw the 2nd column of matrix A.
How can I make a transformation of the 1st column of matrix A, that each element will be an average value of A(:,1) corresponding for each next step of dx?
The right output will be like this:
dy = [1.5;4;6.5]
Thank you in advance!

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Voss
Voss 2024-10-10
编辑：Voss 2024-10-10
Ran in:
A = [0 1; 3 2; 1 3; 7 4; 2 5; 11 6];
dx = [0.5:2:6.5];
dy = groupsummary(A(:,1),discretize(A(:,2),dx),'mean')
dy = 3×1
1.5000 4.0000 6.5000
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