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Re: st: Need help with combing observations by using by: command along with subscripting
From
Rebecca Pope <[email protected]>
To
[email protected]
Subject
Re: st: Need help with combing observations by using by: command along with subscripting
Date
Wed, 6 Feb 2013 11:44:40 -0600
Mike,
The way you have specified the -bysort- currently, Stata is looking
within the patient and date of birth for multiple records. You just
want it to look within patient only.
bys PATIENTno (dtbirth): replace medicalrecordnumber =
medicalrecordnumber[1] if missing(medicalrecordnumber)
The underlying assumption is that an MRN will always be present when
the DOB is present. If not, you might be better off creating a look-up
table of MRNs and using -merge- to update your missing values.
preserve
keep PATIENTno medicalrecordnumber
keep if !missing(medicalrecordnumber)
duplicates drop
tempfile mrn
save `"`mrn'"'
restore
merge m:1 PATIENTno using `"`mrn'"', update
* warning: code not tested
Cheers,
Rebecca
On Wed, Feb 6, 2013 at 11:12 AM, Michael Stewart
<[email protected]> wrote:
> Hi,
>
> I need help with following data where I am trying to combine
> observations for each patient
>
> PATIENTno dtbirth medicalrecordnumber accountnumber
> 1 8/10/1907 1111111
> 1 . dddddddd
> 2 12/14/1910 222222222
> 2 . eeeeee
> 3 4/16/1914 33333333 rrrrrrr
>
>
> PATIENTno,medicalrecordnumber & accountnumber -->STRING format
>
> dtbirth-->%td format
>
>
> I need to combine row one and row two for patient 1 so that resultatnt
> row will have information from both rows one and row two
>
> I tried to use subscripting as follows
>
> bysort PATIENTno dtbirth: repalce medicalrecordnumber= medicalrecordnumber[_n-1]
>
> then all values for the medicalrecordnumber are turning to blank spaces
>
> I also tried bysort PATIENTno dtbirth: repalce medicalrecordnumber=
> medicalrecordnumber[1] but it didnt work either.
>
> Can you please help.
>
> --
> Thank you ,
> Yours Sincerely,
> Mike.
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
On Wed, Feb 6, 2013 at 11:12 AM, Michael Stewart
<[email protected]> wrote:
> Hi,
>
> I need help with following data where I am trying to combine
> observations for each patient
>
> PATIENTno dtbirth medicalrecordnumber accountnumber
> 1 8/10/1907 1111111
> 1 . dddddddd
> 2 12/14/1910 222222222
> 2 . eeeeee
> 3 4/16/1914 33333333 rrrrrrr
>
>
> PATIENTno,medicalrecordnumber & accountnumber -->STRING format
>
> dtbirth-->%td format
>
>
> I need to combine row one and row two for patient 1 so that resultatnt
> row will have information from both rows one and row two
>
> I tried to use subscripting as follows
>
> bysort PATIENTno dtbirth: repalce medicalrecordnumber= medicalrecordnumber[_n-1]
>
> then all values for the medicalrecordnumber are turning to blank spaces
>
> I also tried bysort PATIENTno dtbirth: repalce medicalrecordnumber=
> medicalrecordnumber[1] but it didnt work either.
>
> Can you please help.
>
> --
> Thank you ,
> Yours Sincerely,
> Mike.
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/