[R-SIG-Finance] XTS Modification

Jeff Ryan jeff.a.ryan at gmail.com
Wed Oct 22 16:53:36 CEST 2008


Take a look at:

http://cran.r-project.org/web/packages/RPostgreSQL/index.html

or as Wayne mentioned RODBC.

I have used neither yet.

You might find it faster to use the database's own bulk import
mechanism with the csv files though.

Jeff

On Wed, Oct 22, 2008 at 9:46 AM, SMS CHAUHAn <sms.chauhan at mu-sigma.com> wrote:
> It would upload this data to a Postgresql server.
>
>
>
> Regards,
>
> SMS
>
>
>
>  _____
>
> From: malcolm croucher [mailto:malcolm.croucher at gmail.com]
> Sent: Wednesday, October 22, 2008 8:02 PM
> To: Wayne.W.Jones at shell.com
> Cc: sms.chauhan at mu-sigma.com; r-sig-finance at stat.math.ethz.ch
> Subject: Re: [R-SIG-Finance] XTS Modification
>
>
>
> Would this package allow you to upload straight to a mysql or sql database ?
>
> Regards
>
> Malcolm
>
> On Wed, Oct 22, 2008 at 4:10 PM, <Wayne.W.Jones at shell.com> wrote:
>
>
>
> Another method would be to use the package RODBC.
>
> Wayne
>
>
>
>
>
> -----Original Message-----
> From: r-sig-finance-bounces at stat.math.ethz.ch
> [mailto:r-sig-finance-bounces at stat.math.ethz.ch]On Behalf Of SMS CHAUHAn
> Sent: 22 October 2008 14:40
> To: r-sig-finance at stat.math.ethz.ch
> Subject: [R-SIG-Finance] XTS Modification
>
>
> Hi,
>
> I am a newbie to R.
>
> I am trying to write some stock data to a csv file.
>
> Here is the code.
>
>
>
> <code>
>
> library(xts)
>
> library(Defaults)
>
> library(quantmod)
>
> library(TTR)
>
> getSymbols("IBM")
>
> write.csv(IBM, file="IBM.csv")
>
> </code>
>
>
>
> Later I would use this csv file to write data into an SQL database. Here is
> where I face the problem. In the tool I will be using, column headers have
> to be mapped between csv and SQL fields. In the CSV file I get, the date
> column does not have any column header. There is a workaround to edit the
> csv and add the column header. But can I dynamically add the date id field
> as a regular field in the xts data above before I write it to the csv.
>
>
>
> Thanks,
>
> SMS Chauhan
>
>
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> --
> Malcolm A.B Croucher
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-- 
Jeffrey Ryan
jeffrey.ryan at insightalgo.com

ia: insight algorithmics
www.insightalgo.com



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