Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: problem converting a string variable to a numeric variable


From   Gwinyai Masukume <parturitions@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: problem converting a string variable to a numeric variable
Date   Thu, 25 Apr 2013 19:34:03 +0200

Dear Roger,

generate x = real(y)

Works like a charm. Thanks.

Kind regards,
Gwinyai

On 4/25/13, Roger B. Newson <r.newson@imperial.ac.uk> wrote:
> I think you need -destring- here. Type -help destring- to find out more.
>
> Or you might even want to type
>
> gene weightgrams=real(weight)
>
> which may have the same effect, if your string values are all
> well-formed numbers with no commas or other awkward characters.
>
> Best wishes
>
> Roger
>
> Roger B Newson BSc MSc DPhil
> Lecturer in Medical Statistics
> Respiratory Epidemiology and Public Health Group
> National Heart and Lung Institute
> Imperial College London
> Royal Brompton Campus
> Room 33, Emmanuel Kaye Building
> 1B Manresa Road
> London SW3 6LR
> UNITED KINGDOM
> Tel: +44 (0)20 7352 8121 ext 3381
> Fax: +44 (0)20 7351 8322
> Email: r.newson@imperial.ac.uk
> Web page: http://www.imperial.ac.uk/nhli/r.newson/
> Departmental Web page:
> http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/
>
> Opinions expressed are those of the author, not of the institution.
>
> On 25/04/2013 18:17, Gwinyai Masukume wrote:
>> Dear Stata listers,
>>
>> I have a variable weight. The original dataset has weight as a string
>> variable. Type - str13
>> Format - %13s.
>>
>> encode weight, generate(weightgrams)
>>
>> The above code apparently creates a numeric variable weightgrams.
>> Type - long
>> Format - %13.0g
>>
>> However when dealing with this new variable e.g summ weightgrams, I get
>> completely abnormal results which bear no resemblance to the expected
>> results for the variable weight.
>>
>> I suspect there is some kind of error in conversion from a string to
>> numeric variable.
>>
>> I am using version 12.1
>>
>> Kind regards,
>> Gwinyai
>> *
>> *   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/
>
*
*   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/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index