How Does This Short Code Work?
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Rightia Rollmann
am 11 Mär. 2017
Bearbeitet: Stephen23
am 12 Mär. 2017
How is D calculated? Could you explain the steps that MATLAB takes to calculate D?
Is it only for logical values or can be extended to a wider range?
Is there any link to learn more about it?
A = [1; 1; 0; 0; 0; 0; 1];
C = {'w','b'};
D = C(1+A)
D =
'b' 'b' 'w' 'w' 'w' 'w' 'b'
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Star Strider
am 11 Mär. 2017
The ‘A’ matrix is a double precision numeric array, not a logical array. Your ‘C’ cell has 2 elements, 'w' and 'b' so ‘C(1)='w'’, and ‘C(2)='b'’. MATLAB indexing begins at 1, not 0, so it is necessary to add 1 to ‘A’ to correctly address the elements of ‘C’.
It can be extended, providing that either no element of ‘A’ is greater that 1, or that you add an appropriate number of elements to ‘C’ to allow for elements of ‘A’ that are greater than 1.
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