[R] help please. 2 tables, which test?

[aaral singh]

Hi.Please help if someone can.

Problem:
I have 2 matrices

Eg

matrix 1:
                Freq  None  Some 
  Heavy    3        2          5 
  Never    8       13         8 
  Occas    1        4          4 
  Regul     9        5         7 

matrix 2:
                  Freq     None     Some 
  Heavy        7          1             3 
  Never      87         18          84 
  Occas      12           3            4 
  Regul        9            1            7 


I want to see if matrix 1 is significantly different from matrix 2. I
consider using a chi-squared test. Is this appropriate?
Could anyone advise?
Many thank you.
Aaral Singh

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