How to assign a vector with predefined data?

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I need to a assign a n x n vector with data and use that vector to call a function. All example i found is for creating random or zero vector.
x size n x n (5 x 5) and n must equal length(y), and y size n x 1
A = [10695.88;10446.39;10082.36;9760.39;9390.26];
B = [10705.50;10439.13;10171.95;9794.65;9455.76];
x = vector of A with size 5 x 5 ?
y = vector of B with 5 x 1 ?
Thank you.

Accepted Answer

Shanmukha Voggu
Shanmukha Voggu on 30 Aug 2021
Hi fatema,
I understand that you want to create a vector with predefined data instead of using zeros, ones, rand functions.
let's create a vector A(5 x 1)
A=[1;2;3;4;5]
A = 5×1
1 2 3 4 5
let's create a vector B(5 x 5) from the predefined data(A)
B=A(:,[1,1,1,1,1])
B = 5×5
1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5
The same result as above can be achieved by doing the following
RowCount = size(A, 1)
RowCount = 5
ColumnIndexes = ones(1, RowCount)
ColumnIndexes = 1×5
1 1 1 1 1
B=A(:, ColumnIndexes)
B = 5×5
1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5
The best way to use the predefined data is to index it to get the desired results. refer to this document for more info.

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