checking for number of matching columns on each row of a tabl

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ma sd 2020-7-27

hi,

I have two tables each table has multiple columns.

I wannt to check the values from every row of certain columns (eg coulmns 2,4,7) from table a against all the rows of table b

I did it this way

for i=1:length(a) match=ismember(b(:,[2 4 7]),a(i,[2 4 7]) end

is there a way to do it without for? its making my runtime much longer than it should be

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