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Re: st: Combining Frequency Tables


From   Austin Nichols <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Combining Frequency Tables
Date   Tue, 1 Jun 2010 10:17:35 -0400

Oren Jalon <oren@mentor-initiative.net>:
Doesn't make a lot of sense to me, but try e.g.:

preserve
ren varX fake1
ren varY fake2
g long i=_n
keep i fake1 fake2
reshape long fake, i(i) j(j)
tab fake j
tab fake
restore

On Tue, Jun 1, 2010 at 10:09 AM, Oren Jalon <oren@mentor-initiative.net> wrote:
> Not quite.  For example, if Var X has 100 records and Var Y has 200 records
> where Var X has #6 twenty times and and  Var Y has #6 ten times, the
> frequency of the variable would be:
>
> (20+10) /(100+200) = 30/300 or 0.1
>
> I guess 'table' is the wrong term.  I need the combined frequency of two
> variables.  Does this make sense?
>
> Thanks,
>
> Oren
>
>
> On 6/1/2010 3:00 PM, Maarten buis wrote:
>>
>> --- Oren Jalon wrote:
>>
>>>
>>> I have two variables (Var X and Var Y) which both have values ranging
>>> from 1 to 9.  I can tabulate the frequency of values from each variable
>>> individually but is there a way to combine all the values and get a
>>> combined frequency table?
>>>
>>
>> -tab x y- will give you a cross tabulation, which is I suppose what
>> you mean with a "combined frequency table". For more see: -help tab2-.
>>

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