Displaying 8 results from an estimated 8 matches for "bodea".
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2008 Jun 17
6
Insert raster image into an R graphic
...for her dissertation. Similarly, while working on a
competitive analysis, it would be nice to be able to replace the names of the
competitors with their brand logos. My searches so far led to inconclusive
results and, therefore, any suggestions are welcome.
Thank you so much.
Tudor
--
Tudor Dan Bodea
Georgia Institute of Technology
School of Civil and Environmental Engineering
Web: http://www.prism.gatech.edu/~gtg757i
2007 Nov 13
2
Query an Access database based on a date attribute (Tudor Bodea)
Tudor Bodea asked:
>In this context, I try to get all the records for which market is atl-bos,
>competitor is delta and dd is 2007-11-20 (first record above). To do this I used
>># channel <- odbcConnectAccess("test.mdb")
>>res <- sqlQuery(channel, "select * from test_t...
2007 Nov 13
1
R: Query an Access database based on a date attribute
...market = 'atl-bos'
and competitor = 'delta' and dd = #2007-11-20#")
Hope this helps,
Stefano
-----Messaggio originale-----
Da: r-help-bounces at r-project.org
[mailto:r-help-bounces at r-project.org]Per conto di Mark Wardle
Inviato: marted? 13 novembre 2007 11.59
A: Tudor Bodea
Cc: r-help at stat.math.ethz.ch
Oggetto: Re: [R] Query an Access database based on a date attribute
On 12/11/2007, Tudor Bodea <gtg757i at mail.gatech.edu> wrote:
> Dear useRs,
>
> I would like to query an Access database through R based on a date attribute
> but, unfortunately,...
2008 Jul 17
3
Hiding information about functions in newly developed packages
...rporate this information into the package building process. If you
already experienced this issue and have some useful suggestions, I would really
appreciate your taking the time to share them with me. For this project, I am
using R2.7.1 on a Windows XP machine.
Thank you.
Tudor
--
Tudor Dan Bodea
Georgia Institute of Technology
School of Civil and Environmental Engineering
Web: http://www.prism.gatech.edu/~gtg757i
2007 Oct 30
1
Place a string into the header/footer of a pdf file generated during a plot session
...possible to write a string in the
header/footer of a pdf file created during a plot session? To make sure that I
know what R script generated a certain chart, I would like to add the path to
the working directory into the header/footer of the corresponding pdf file.
Thank you.
Tudor
--
Tudor Dan Bodea
Georgia Institute of Technology
School of Civil and Environmental Engineering
Web: http://www.prism.gatech.edu/~gtg757i
2007 Nov 12
2
Query an Access database based on a date attribute
...petitor dd price
<0 rows> (or 0-length row.names)
Does any of you know what it is going on? I suspect that the last expression in
the select statement is not executed/interpreted correctly and, as a
consequence, the query leads to the above empty set.
Thank you.
Tudor
--
Tudor Dan Bodea
Georgia Institute of Technology
School of Civil and Environmental Engineering
Web: http://www.prism.gatech.edu/~gtg757i
2008 Jul 06
1
Exception Handling
...e with me what you think constitutes the best practices and/or
(2) point out to me any online material relevant to the topic. I run various
versions of R on Windows and multiple UNIX platforms. The list of items is
read from a .csv file and stored in a dataframe.
Thank you.
Tudor
--
Tudor Dan Bodea
Georgia Institute of Technology
School of Civil and Environmental Engineering
Web: http://www.prism.gatech.edu/~gtg757i
2008 Sep 27
1
Append selectively to components of a list
Dear R users:
Is there a way to append selectively to components of a list (if possible, loops are to be avoided)? To illustrate the point, in the example below, I would like to append 99 to vector b of the list l.
> l <- list(a=c(1), b=c(2,3), c=c(4,5,6))
> l
$a
[1] 1
$b
[1] 2 3
$c
[1] 4 5 6
As you may expect, the result should look like:
> l
$a
[1] 1
$b
[1] 2 3 99
$c
[1] 4 5