How to delete elements which in cell?

Now I have DataA and DataB as below:

DataA =

     {5x1 cell}    [5x1 double]

 DataB = 

     {5x1 cell}    [5x1 double]

 DataA{1} = 

     '2015/05/04'
     '2015/05/05'
     '2015/05/06'
     '2015/05/08'
     '2015/05/09'

 DataB{1}= 

     '2015/05/04'
     '2015/05/05'
     '2015/05/06'
     '2015/05/07'
     '2015/05/08'

 DataA{2} =

    1.0e+03 *

     4.4413
     4.4799
     4.3116
     4.1979
     4.1530

 DataB{2} =

    17.2400
    16.9700
    16.3200
    16.2700
    16.4300

Now I want to find the difference between DataA{1} and DataB{1} first; then delete the different rows in DataA and DataB; For example, DataA{1} has '2015/05/07' which DataB{1} doesn't have; so DataA{1}(4) and DataA{2}(4) should be deleted; and the same other different points.

My question is how to do this?

thank you!

[dpb]

doc ismember % and friends

Answer 1

[Jan]

[indexA, indexB] = ismember(DataA{1}, DataB{1});
DataA{1}(indexA) = [];
DataA{2}(indexA) = [];
DataB{1}(indexB) = [];
DataB{2}(indexB) = [];

See also: setdiff.

[vx2008]

thank you!