Dear List,
I am having an issue with strptime (see below).
I can reproduce it on R-2.8, R-2.9, and R-2.10-dev, I tempted to see
either a bug or my misunderstanding (and then I just don't currently see
where).
# setup:
x - c(March 09, 2007, May 31, 2007, November 12, 2008, November
12, 2008,
Try this to see its components:
str(unclass(xd))
List of 9
$ sec : num [1:6] 0 0 0 0 0 0
$ min : int [1:6] 0 0 0 0 0 0
$ hour : int [1:6] 0 0 0 0 0 0
$ mday : int [1:6] 9 31 12 12 30 30
$ mon : int [1:6] 2 4 10 10 6 6
$ year : int [1:6] 107 107 108 108 109 109
$ wday : int [1:6] 5 4 3
On Sat, Aug 8, 2009 at 1:31 PM, Gavin Simpsongavin.simp...@ucl.ac.uk wrote:
Dear List,
I am writing a formula method for a function in a package I maintain. I
want the method to return a data.frame that potentially only contains
some of the variables in 'data', as specified by the formula.
The reason is in the ?strptime under value:
'strptime' turns character representations into an object of class
'POSIXlt'. The timezone is used to set the 'isdst' component
and to set the 'tzone' attribute if 'tz != '.
And POSIXlt is a list of length 9.
HTH
Jeff
On Sun, Aug 9, 2009
Hello:
What should I do regarding code to write an Excel file in a
non-Windows platform?
The sos package [new version of RSiteSearch] on R-Forge
includes writeFindFn2xls, which starts with require(RODBC). The
next line calls odbcConnectExcel. This works under Windows but
On 9 August 2009 at 12:04, spencerg wrote:
| What should I do regarding code to write an Excel file in a
| non-Windows platform?
[...]
| What would you suggest we do about this?
[...]
| If there is a better way to handle this, I would like to know.
Instead of writing out an xls file you could write out a file
in any format that Excel can read, e.g. csv, with a suitable
renaming of your function.
On Sun, Aug 9, 2009 at 1:04 PM, spencergspencer.gra...@prodsyse.com wrote:
Hello:
What should I do regarding code to write an Excel file in
Dear Marc:
In spite of your efforts to help me, I still get an F in your
WriteXLS class. Consider the following:
library(WriteXLS)
help(pac=WriteXLS)
testPerl()
Perl found.
The following Perl modules were not found on this system:
Text::CSV_XS
If you have more than one Perl
Dear Gabor:
Good suggestion. I will probably do that if WriteXLS is not
installed or if it is but testPerl() is FALSE.
Thanks,
Spencer
Gabor Grothendieck wrote:
Instead of writing out an xls file you could write out a file
in any format that Excel can read, e.g. csv, with a
Thanks.
It seems that the source of my confusion comes from using first using
str() (and then once on the wrong track, it is easier to miss the
information a man page that also describes POSIXct that is itself a
vector of length equal to the number of entries it contains).
With the current
On Sun, 2009-08-09 at 11:32 -0500, Douglas Bates wrote:
On Sat, Aug 8, 2009 at 1:31 PM, Gavin Simpsongavin.simp...@ucl.ac.uk wrote:
Dear List,
I am writing a formula method for a function in a package I maintain. I
want the method to return a data.frame that potentially only contains
I am having difficulty with evaluation/environment construction
for a formula to be evaluated by model.matrix(). Basically, I
want to construct a model matrix that first looks in newdata
for the values of the model parameters, then in obj...@data.
Here's what I've tried:
1.
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