Re: st: Mcnemar using mcc command

[Maarten Buis <maartenlbuis@gmail.com>]

On Mon, Nov 5, 2012 at 11:21 AM, rasool.bux wrote:
> I want to run Mcnemar test in stata. The mcc command is not giving correct results.

You seem to have coded your variables as 1,2 instead of 0,1:

*----------- begin example -------------
webuse mccxmpl, clear
// code unexposed /exposed as 1, 2
// instead of 0, 1
gen case_wrong = case + 1
gen control_wrong = control + 1

// add some labels
label define lab 1 "no" 2 "yes"
label val case_wrong control_wrong lab

// see the crosstab
tab case_wrong control_wrong [fw=pop]

// -mcc- looks all wrong
mcc case_wrong control_wrong [fw=pop]

// if you use the 0,1 coding
// everything looks fine again
mcc case control [fw=pop]
*------------ end example --------------
(For more on examples I sent to the Statalist see:
http://www.maartenbuis.nl/example_faq )

Hope this helps,
Maarten

---------------------------------
Maarten L. Buis
WZB
Reichpietschufer 50
10785 Berlin
Germany

http://www.maartenbuis.nl
---------------------------------
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