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# Re: st: Combining 7 variables with the same output into a single frequency table

 From Richard Goldstein To statalist@hsphsun2.harvard.edu Subject Re: st: Combining 7 variables with the same output into a single frequency table Date Wed, 13 Feb 2013 16:47:13 -0500

```it is not clear what you are looking for

if you want the sum of the variables use -egen- with the rowtotal option

if you want to know whether any of the variables have a "1", use -egen-
with the rowmax option

if you want something else, please clarify

Rich

On 2/13/13 4:39 PM, Astha Ramaiya wrote:
> Dear Nicholas,
>
> I have 7 different variables (fever 1, fever 2, fever 3….fever7) with the same output (0=No, 1 = Yes). I want to combine all these variables so that i can calculate prevalence of the morbidity. For example:
>
> Fever 1-7 give the output:
>
>  m_fever1 |      Freq.     Percent        Cum.
> ------------+-----------------------------------
>           1 |         50       14.3       14.7
>           2 |        300       85.7      100.00
> ------------+-----------------------------------
>       Total |        350      100.00
>
>
>  m_fever2 |      Freq.     Percent   Cum.
> ------------+-----------------------------------
>           1 |         0       	0      	 0
>           2 |        350      100.00      100.00
> ------------+-----------------------------------
>       Total |        350      100.00
>
>  m_fever3 |      Freq.     Percent        Cum.
> ------------+-----------------------------------
>           1 |         100       28.6       28.6
>           2 |        250       71.4      100.00
> ------------+-----------------------------------
>       Total |        350      100.00
>
> How can i combine the 3 tables above to give me the following table?
>
>  m_fever |      Freq.     Percent        Cum.
> ------------+-----------------------------------
>           1 |         150       14.3       14.7
>           2 |        900       85.7      100.00
> ------------+-----------------------------------
>       Total |        1050      100.00
>
> I have been trying to find something the entire day but haven't been successful. Any help would be very much appreciated.
>
> Regards,
>
> Astha.
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