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From |
Svend Juul <[email protected]> |

To |
<[email protected]> |

Subject |
Re: st: Missing values and listing IDs |

Date |
Thu, 13 Nov 2008 16:27:39 +0100 |

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/

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