Adding a string value to an array.

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Louis Grainger
Louis Grainger 2021-4-21
回答： Aghamarsh Varanasi 2021-4-23
Given an array of zeros like so....
0 0 0 0
0 0 0 0
0 0 0 0
Using something like
if something = true
A(2,2) = ("x");
end
Is there a function which will use the str(x) and transform the element in the array at (2,2) to this string?
  1 个评论
Stephen23
Stephen23 2021-4-21
Not really. Arrays are homogenous, the entire array consists of elements of the same class.
As an alternative you could do one of these:
  • use a container array (e.g. cell array, but this will make processing numeric data more complex and less efficient)
  • use a special value (e.g. NaN, -1)
  • store the character value (but this might be easily confused with valid numeric data)
  • store a separate logical mask and/or string/char array.

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Aghamarsh Varanasi
Aghamarsh Varanasi 2021-4-23
Hi,
CellArrays would be the right structure to store string data. You can assign values to cell array as follows.
A = cell(4,4);
A{2,2} = 'x';
Hope this helps

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