Hello,

Sorry to all for the lack of communication, and thanks to those with the
suggestions.

So I have two matrixes which are different sizes, same column number but
different row number. 

What I would like to do is to compare A to B. In the 6 and 9th column there
are ref numbers (molecular masses to be exact). I would like to check A and
B by these columns. If I find that the number in A[9,x] and B[9, x] are the
same then I want to remove the row that it is comparing from A. So overall,
if something appears in B then I remove it from A. 

 

            Cheers,

 

            Paul

 

 

Research Technician

Mass Spectrometry

   o The

  /

o Scripps

  \

   o Research

  /

o Institute

 


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