Sham wrote:
I wish to list the ID numbers of those individuals in my
dataset that have at least one missing value out any six
variables (x1-x6). At the moment I have used the following
logic:
list responder_status ID if x1==. | x2==. | ///
x3==. | x4==. | x5==. | x6==.
But I'm not sure if this is correct, so I did the following
which I think is.
gen miss=0
recode miss 0=1 if x1==.
recode miss 0=1 if x2==.
recode miss 0=1 if x3==.
recode miss 0=1 if x4==.
recode miss 0=1 if x5==.
recode miss 0=1 if x6==.
However is there a more succinct way to write this code,
instead of 7 lines?
=======================================================
egen miss = rowmiss(x1-x6)
Note that in this -egen- function, x1-x6 is a variable list, as
opposed the rule for an expression where it means a difference.
It does not necessarily mean x1,x2,x3,x4,x5,x6; that depends on
what variables come between x1 and x6 in the dataset.
Hope this helps
Svend
________________________________________________________
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C, Denmark
Phone, work: +45 8942 6090
Phone, home: +45 8693 7796
Fax: +45 8613 1580
E-mail: [email protected]
_________________________________________________________
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/