I have dataframe like this
 name    cat1    cat2    cat3
'aa bb'    A      A-1   A-1-1
'cc dd'    B      B-1   B-1-1
'ee aa'    C      C-1   C-1-1
'gg bb'    D      D-1   D-1-1
I want to make dataFrame of that dataframe that includes aa like this
 name    cat1    cat2    cat3
'aa bb'    A      A-1   A-1-1
'ee aa'    C      C-1   C-1-1
 
    