Using the "find" command with arrays of cells

I have 91-by-1 cell array, named "Channels," in my workspace whose entries correspond to EEG channels. For example,

Channels{7}=B3

whereas, using parentheses as opposed to braces,

Channels(7)= 'B3'

I know how to use the "find" command when working with vectors and matrices, but I'm having trouble using it in such situations. For example, I would like to find the index that corresponds to say B3, something along the lines of

find(Channels==B3)

I think my problem stems from a lack of understanding of data types.

Answer 1

[Azzi Abdelmalek]

find(ismember(chanels,'B3'))

[Paul Fishback]

Perfect! Thanks.