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Re: st: finding incorrectly entered data
From
Fred Wolfe <[email protected]>
To
[email protected]
Subject
Re: st: finding incorrectly entered data
Date
Wed, 15 Jun 2011 15:13:40 -0500
Try something like this:
gen aflag = real(daysfromtest) == .
Fred Wolfe
On Wed, Jun 15, 2011 at 3:04 PM, Michael Eisenberg
<[email protected]> wrote:
>
> Colleagues,
>
> I have what I hope will be a simple question.
>
> I have a list of several thousand patients with a lab test and days
> from the test recorded. I'd like to be able to analyze the days from
> test data as a continuous variable. Unfortunately, some of the data
> in the days from lab test are not numeric and have odd characters
> (e.g. ?, +-5, na, etc). See below. Thus, I cannot run any summary
> statistics on it.
>
> I cannot manually look through all the data due to the number of men
> to find the nonnumeric data. Is there a way I can have stata somehow
> flag the rows with nonnumeric data?
>
> Thank you in advance.
>
> Mike
>
>
>
> id test daysfromtest
> 1 41 2
> 2 43 4
> 3 45 6
> 4 44 10
> 5 48 ?
> 6 44 +-5
> 7 24 na
> 8 74 2
> 9 94 3
> *
> * 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/
Fred Wolfe
National Data Bank for Rheumatic Diseases
Wichita, Kansas
NDB Office +1 316 263 2125 Ext 0
Research Office +1 316 686 9195
[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/