ismember for string matrix

I have two string matrices;
A=['c1' 'c ' 'b ' 'd9']'; %UNIQUELIST
B=['d9' 'c1']'; %ORIGINALLIST
I would like do find member of B in A, using:
[LIA,LOCB]=ismember(A,B);
and it returns
LOCB =
3
4
3
0
0
0
1
2
But I actually would like it to return matching row index like this:
LOCB =
2
0
0
1
Thanks for your help
Sam

Respuestas (2)

Sean de Wolski
Sean de Wolski el 26 de Nov. de 2014

0 votos

You need to make A and B cell arrays so that each string piece is a separate element (rather than a 1xn string. The fix is simple use {} instead of []
A={'c1' 'c ' 'b ' 'd9'}';
B={'d9' 'c1'}'
[LIA,LOCB]=ismember(A,B)

1 comentario

Sam
Sam el 26 de Nov. de 2014
that hit the nail on the head, thanks!

Iniciar sesión para comentar.

dpb
dpb el 26 de Nov. de 2014

0 votos

You've got string arrays here; use the 'rows' optional argument to treat them as such instead of as individual characters...
>> [~,loc]=ismember(A,B,'rows')
loc =
2
0
0
1
>>

3 comentarios

Sam
Sam el 26 de Nov. de 2014
i guessed if i use
[~,loc]=ismember(cellstr(A),cellstr(B))
then it would safely do the same job?
dpb
dpb el 26 de Nov. de 2014
Did you try it and see???
Sean de Wolski
Sean de Wolski el 26 de Nov. de 2014
Probably, but converting to cells is heavier weight if you don't need them for other things.

Iniciar sesión para comentar.

Categorías

Más información sobre Data Type Conversion en Centro de ayuda y File Exchange.

Etiquetas

Preguntada:

Sam
el 26 de Nov. de 2014

Comentada:

el 26 de Nov. de 2014

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by