MATLAB: Problem while using ‘intersect’ between strings

Question

Hi:

I have two strings:

s1='bound10-wall1.out'
s2='bound10-wall24.out'

and I need the intersect between them, then, I use the result posted here: https://www.mathworks.com/matlabcentral/answers/125711-how-can-i-find-the-common-elements-of-2-cell-arrays-of-strings

[C,ia,ib] = intersect(s1,s2, 'stable');

the result is:

C='bound10-wal.t'

however, I think the expected result should be:

'bound10-wall.out'

so I would like to know if there is any mistake with my understanding?

Thanks!

Yu

Answer 1

The letter ‘l’ appears twice in both strings, so is only returned once in the intersect result.

Yopu will get a similar result with:

s1u = unique(s1, 'stable')
s2u = unique(s2, 'stable')

and for the same reason.