On Apr 5, 2011, at 4:53 AM, Enrico Schumann wrote:
At least for Excel 2003 on my computer (Win XP) I can "persuade"
Excel to
treat cells like text by prepending a ' to the entry (eg, '1000). Then
sqlFetch/RODBC should import these cells as character. [But a number
would
not be valid column name for a data.frame, and you may run into other
trouble. See ?make.names]
If the problem is that Excel is failing to treat cells as text, then
you could also try selecting the cells, then using the Format/Cells
panel to specify "Text" rather than "General". But as I suggested
before, I suspect the problem is you effort to defeat the usual
checking for valid R names.
--
David.
regards,
enrico
-----Ursprüngliche Nachricht-----
Von: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] Im Auftrag von Folkes, Michael
Gesendet: Dienstag, 5. April 2011 00:05
An: r-help@r-project.org
Betreff: [R] RODBC excel - need to preserve (or extract)
numeric column names
I'm using RODBC to read an excel file (not mine!). But I'm
struggling to find a way to preserve the column names that
have a numeric value. sqlFetch() drops the value and calls
them f1, f2, f3,... (ie field number). this is a different
approach from read.csv, which will append "V" prior to the
numeric column name. sqlFetch isn't so helpful.
Is there a way to get the first line of data from the excel
file and place it in a vector? Perhaps I can use that method
and rename the dataframe column names later?
thanks!
Michael
_______________________________________________________
Michael Folkes
Salmon Stock Assessment
Canadian Dept. of Fisheries & Oceans
Pacific Biological Station
3190 Hammond Bay Rd.
Nanaimo, B.C., Canada
V9T-6N7
Ph (250) 756-7264 Fax (250) 756-7053
michael.fol...@dfo-mpo.gc.ca <mailto:michael.fol...@dfo-mpo.gc.ca>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
