How do I map the elements of one matrix to another?
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Noah Huffman
el 20 de Jul. de 2017
I am trying to transform a matrix A to A' where the indices are transformed by:
- y' = x
- x' = 1024-y
I am currently using the code:
for x = 1:1024
for y = 1:1024
f{x,y} = b(1024-y,x);
end;
end
but am getting a "Subscript indices must either be real positive integers or logicals." error. Any suggestions on how to do this?
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Stephen23
el 20 de Jul. de 2017
Editada: Stephen23
el 20 de Jul. de 2017
If b has 1024 rows then you will need:
1+1024-y
otherwise the lowest calculated index value will be zero (MATLAB indexing starts at one).
Better alternative: doing this in a loop is likely not very efficient, you should simply use indexing directly, e.g.:
fliplr(b.')
or
b(end:-1:1,:).'
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