Adding a string value to an array.

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?

[Stephen23]

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.

Answer 1

[Aghamarsh Varanasi]

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