From leif at reflectivity.com  Mon Feb 27 22:41:14 2006
From: leif at reflectivity.com (Leif Kirschenbaum)
Date: Mon, 27 Feb 2006 13:41:14 -0800
Subject: [Rd] Request for showWarnings parameter for write.table
Message-ID: <200602272141.k1RLfJ6r027586@hypatia.math.ethz.ch>

Madams & Sirs,
  I use write.table to write CSV files to generate reports for my colleagues to open in their spreadsheet application of choice.  I often append data of dissimilar structure to the same file, i.e. a few summary lines and then additional data of some number of columns.

Normally write.table produces:
> write.table(etest[,writevars],file=fname,row.names=FALSE,col.names=TRUE,
	append=TRUE,sep=",")
Warning message:
appending column names to file in: write.table(etest[, writevars], file = fname, row.names = FALSE,  


Therefore I resort to:

> options(warn=-1)
> write.table(etest[,writevars],file=fname,row.names=FALSE,col.names=TRUE,append=TRUE,sep=",")
> options(warn=0)


However I thought that perhaps a parameter such as included for dir.create would be more elegant:
> write.table(etest[,writevars],file=fname,row.names=FALSE,col.names=TRUE,
	append=TRUE,sep=",",showWarnings=FALSE)


where showWarnings would default to TRUE.

Please cc: replies to leif at reflectivity.com

Thank you.


Leif Kirschenbaum
Senior Yield Engineer
Reflectivity, Inc.
(408) 737-8100 x307
leif at reflectivity.com



[Rd] Request for showWarnings parameter for write.table
Leif Kirschenbaum