Re: st: more bizarre missing observations

[Ernest Berkhout <ernestb@seo.fee.uva.nl>]

At 13:43 9-10-2003, you wrote:
> I have a similar problem to Robert's in that I know for sure there are
> missing data for a particular variable ('canter') but if I type
>
> tab canter if canter==.
>
> I am told there are 'no observations'
>
> canter is stored as float but following Neil's suggestion still gives me 'no
> observations'. Please can anyone tell me how I find out exactly how many
> missing values there are?
What do you want Stata to tabulate? It looks for values to display in a 
table, but because it is restricted to missing values it doesn't find them.
It will work if you specify the option ", missing" at the end of the 
command. Though if you want to inspect the data I myself mostly use the 
"codebook" command. Or, if you have a whole list of variables, one can 
summarize and look at the N that is reported for each variable, and 
coompare that with the total N.


Ernest Berkhout
SEO Amsterdam Economics
University of Amsterdam

Room 3.08
Roetersstraat 29
1018 WB Amsterdam
The Netherlands

tel.:+ 31 20 525 1657
fax:+ 31 20 525 1686
http://www.seo.nl
===========================
A statistician: someone who insists
on being certain about uncertainty
===========================

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