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Re: st: count cases of a string variable,


From   "Tunga Kantarci" <tungakantarci@hotmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: count cases of a string variable,
Date   Thu, 1 May 2008 12:52:18 +0200

Thanks for the reply. I was trying to do the second one, which you mentioned
my command is legal. But it does not work. Why?:


 tab age42

                                 age q4 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
61                                      |        588       32.04       32.04
63                                      |        640       34.88       66.92
65                                      |        607       33.08      100.00
----------------------------------------+-----------------------------------
                                  Total |      1,835      100.00


 describe age42

              storage  display     value
variable name   type   format      label      variable label
----------------------------------------------------------------------------
----------------------------------------------------------------------------
---
age42           str80  %80s                   age q4



 count if age42 == "65"
    0







After I converted the "age42" to "age42num" I get what I want:


 tab age42num

                                 age q4 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
61                                      |        588       32.04       32.04
63                                      |        640       34.88       66.92
65                                      |        607       33.08      100.00
----------------------------------------+-----------------------------------
                                  Total |      1,835      100.00


 describe age42num

              storage  display     value
variable name   type   format      label      variable label
----------------------------------------------------------------------------
----------------------------------------------------------------------------
---
age42num        long   %80.0g      ttage42    age q4


 count if age42num == 3
  607


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