[Rd] Retrieving data from aspx pages

[Paul Gilbert]

I think RHTMLForms works if you have a single form, but I have not been 
able to see how to use it when you need to go through a sequence of 
dynamically generated forms (like you can do with Python mechanize).

Paul

On 12-10-30 09:08 AM, Gabriel Becker wrote:
> I haven't used it extensively myself, and can't speak to it's current
> state but on quick inspection RHTMLForms seems worth a look for what you
> want.
>
> http://www.omegahat.org/RHTMLForms/
>
> ~G
>
> On Tue, Oct 30, 2012 t 5:38 AM, Paul Gilbert <pgilbert902 at gmail.com
> <mailto:pgilbert902 at gmail.com>> wrote:
>
>     I don't know of an easy way to do this in R. I've been doing
>     something similar with python scripts called from R. If anyone knows
>     how to do this with just R, I would appreciate hearing too.
>
>     Paul
>
>
>     On 12-10-29 04:11 PM, jose ramon mazaira wrote:
>
>         Hi. I'm trying to write an application to retrieve financial data
>         (specially bonds data) from FINRA. The web page is served
>         dynamically
>         from an asp.net <http://asp.net> application:
>
>         http://cxa.gtm.__idmanagedsolutions.com/finra/__BondCenter/AdvancedScreener.__aspx
>         <http://cxa.gtm.idmanagedsolutions.com/finra/BondCenter/AdvancedScreener.aspx>
>
>         I'd like to know if it's possible to fill dynamically the web page
>         form from R and, after filling it (with the issuer name),
>         retrieve the
>         web page, parse the data, and covert it to appropiate R objects.
>         For example, suppose I want to search data for AT&T bonds. I'd
>         like to
>         know if it's possible, within R, to fill the page served from:
>
>         http://cxa.gtm.__idmanagedsolutions.com/finra/__BondCenter/AdvancedScreener.__aspx
>         <http://cxa.gtm.idmanagedsolutions.com/finra/BondCenter/AdvancedScreener.aspx>
>
>         select the "corporate" option and fill with AT&T the field for
>         "Issuer
>         name", ask the page to display the results, and retrieve the results
>         for each of the bonds issued by AT&T (for example:
>
>         http://cxa.gtm.__idmanagedsolutions.com/finra/__BondCenter/BondDetail.aspx?ID=__MDAxOTU3Qko3
>         <http://cxa.gtm.idmanagedsolutions.com/finra/BondCenter/BondDetail.aspx?ID=MDAxOTU3Qko3>)
>
>         and parsing the data from the web page.
>
>         Thanks in advance.
>
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>
>
> --
> Gabriel Becker
> Graduate Student
> Statistics Department
> University of California, Davis
>