I am new to Matlab
I am trying to do something to an 2x3 array A:
for example:
A = [13 14; 19 17; 54 33];
output :[14 14; 23 17; 64 39];
is there any chance to achieve this without knowing the elements' value inside the array?
help please
Without knowing the elements, we could just get indexs of them by calling [~,I] = sort(___) and call A(I(k)) to find the k-th number in matrix A.
[B,I] = sort(___) will return a collection of index vectors for any of the previous syntaxes. I is the same size as A and describes the arrangement of the elements of A into B along the sorted dimension. For example, if A is a numeric vector, B = A(I).
%data
A = [13 14; 19 17; 54 33];
%sort
[~,index]=sort(A(:));
%add
A(index(end))=A(index(end))+10;
A(index(end-1))=A(index(end-1))+6;
A(index(end-2))=A(index(end-2))+4;
A(index(1))=A(index(1))+1;
A
Ref:
doc sort
help and doc are the excellent guides for newcomers.
