search for: mcgehe

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2008 Jul 29
3
sapply(Date, is.numeric)
...y to the bugs.r-project.org website. As far as I can tell, the bug tracking system hasn't picked this up. Also it looks like the latest "incoming" bug is dated 25 May 2008, so perhaps others are having difficulty as well. (cc: r-bugs) Cheers, Robert -----Original Message----- From: McGehee, Robert Sent: Monday, July 14, 2008 9:51 AM To: R-bugs at biostat.ku.dk Subject: sapply(Date, is.numeric) R-developers, The results below are inconsistent. From the documentation for is.numeric, I expect FALSE in both cases. > x <- data.frame(dt=Sys.Date()) > is.numeric(x$dt) [1] FALSE...
2006 Oct 23
4
Changing function arguments
...t into its component functions, search for FUN and increment one of its arguments ('x'), then reassemble and return the resulting expression. However, I haven't been able to come up with a clean way to do this. Suggestions would be greatly appreciated. Thanks in advance, Robert Robert McGehee Quantitative Analyst Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2005 Jan 12
2
?"=" (Windows) (PR#7504)
..._ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 0.1 year 2004 month 11 day 15 language R Robert McGehee Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee@geodecapital.com This e-mail, and any attachments hereto, are intended for use by the addressee(s) only and may contain information that is (i) confidential...
2006 May 22
3
Wishlist: Vignettes on CRAN
...te PDF directly to the download page so that one could download it just as one can download the reference manual or package source. This both publicizes the vignette (since many users may even be unaware that a package has a vignette) and facilitates browsing. Just a thought! Best, Robert Robert McGehee Quantitative Analyst Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2005 Jan 27
3
Indexing Lists and Partial Matching
...check for an error, and if there is an error substitute NULL (to mimic the "[" behavior). However, I don't really want to start using another indexing function altogether just to get around this behavior. Is there a better way? Can I turn off partial matching? Thanks, Robert Robert McGehee Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2005 Feb 28
2
Changing function arguments to NULL
...them in explicitly: e.g. alist(x = 5, y = 2, z = 3). Re-assigning and then re-evaluating output of the match.call() function might not be the way to go, but I am not sure, and would appreciate any comments on the best way to set function arguments to NULL before evaluating. Thanks, Robert Robert McGehee Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee@geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2006 Nov 29
1
Removing terms from formula
...z) becomes lm(x ~ y + 1). Likewise, if both 'y' and 'z' are one-level factors, then the resulting calculation is simply lm(x ~ 1). Unfortunately, I have not been able to come up with an elegant solution to this. Any suggestions would be greatly appreciated. Thanks, Robert Robert McGehee, CFA Quantitative Analyst Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2008 Apr 28
2
time zone conversion
...avings at all), so this conversion is non-trivial. 2007-03-01 12:00:00 EST = 2007-03-01 17:00:00 GMT 2007-03-15 12:00:00 EDT = 2007-03-01 16:00:00 GMT 2007-04-01 12:00:00 EDT = 2007-03-01 17:00:00 BST Is any of the time zone/daylight savings information coded up somewhere? Thanks, Robert Robert McGehee, CFA Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended fo...{{dropped:11}}
2005 May 11
7
bug in modulus operator %% (PR#7852)
The following can't be right, first rw2010: > 1 %% 0.001 [1] 0.001 Then rw2001: > 1 %% 0.001 [1] -2.081668e-17 > and the last seems about right. -- Kjetil Halvorsen. Peace is the most effective weapon of mass construction. -- Mahdi Elmandjra -- No virus found in this outgoing message. Checked by AVG Anti-Virus.
2005 Jan 10
1
new("call") problem (PR#7490)
...NULL > str(new("call")) Formal class 'call' [package "methods"] with 0 slots list() This, I believe is the preferred behavior of new("call"), and I would contend this fix should be included in the R source. Best, Robert -----Original Message----- From: McGehee, Robert [mailto:Robert.McGehee@geodecapital.com] Sent: Saturday, January 08, 2005 6:06 PM To: r-devel@stat.math.ethz.ch Subject: [Rd] new("call") problem The below looks like the show method has trouble with the default call object (or that there is no default call object). Not sure i...
2005 Jan 24
6
Very Long Expressions
...Thanks, Robert platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 0.1 year 2004 month 11 day 15 language R Robert McGehee Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee@geodecapital.com This e-mail, and any attachments hereto, are intended for use by the addressee(s) only and may contain information that is (i) confidential...
2006 Sep 29
1
Plotting text with lattice
...be appreciated! Also, if I have more than one panel and would like to place text at different points on different panels how would I do this? Also, note that I'm hoping to use text to label interesting points in a levelplot, but am using the above xyplot as an example. Thanks, Robert Robert McGehee Quantitative Analyst Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2008 May 16
1
var/sd and NAs in R2.7.0
...e updated to be able to revert to the old behavior as well. FYI: I 'apply' these functions to large matrices of stock return time series with missing values, and don't want the whole calculation to fail just because I'm missing stock returns for one company. Thanks, Robert Robert McGehee, CFA Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended fo...{{dropped:11}}
2008 Jul 08
1
split.Date
...) > date <- rep(Sys.Date() + -1:1, length.out=1e4) > system.time(x1 <- split.default(date, vals)) user system elapsed 7.718 0.042 7.761 > system.time(x2 <- split.Date(date, vals)) user system elapsed 0.044 0.000 0.044 > all.equal(x1, x2) [1] TRUE Robert McGehee, CFA Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended fo...{{dropped:12}}
2005 Jan 05
2
Rcmd check Error help
..._ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 0.1 year 2004 month 11 day 15 language R Robert McGehee Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for use by the addressee(s) only and may contain information that is (i) confidenti...
2010 Jun 29
2
POSIXlt matching bug
...year 2010 month 05 day 31 svn rev 52157 language R version.string R version 2.11.1 (2010-05-31) Robert McGehee, CFA Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com >This e-mail, and any attachments hereto, are intended for use by the addressee(s) only and may contain information that i...
2008 Sep 12
1
match and incomparables
....2 year 2008 month 08 day 25 svn rev 46428 language R version.string R version 2.7.2 (2008-08-25) Robert McGehee, CFA Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended fo...{{dropped:12}}
2006 Jan 12
1
.leap.seconds
...i686 os linux-gnu system i686, linux-gnu status Patched major 2 minor 2.1 year 2006 month 01 day 07 svn rev 37024 language R Robert McGehee Quantitative Analyst Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2005 Apr 22
3
as.data.frame: Error in "names<-.default" (PR#7808)
...r [1] Note, that while the extra (unused) arguments in FUN seem unnecessary, as well as the odd indexing, the problem disappears when I remove the extraneous values. Unfortunately, I have not found a more elegant way to present this problem, but hopefully this code will be helpful. Robert Robert McGehee Geode Capital Management, LLC 53 State Street, 5th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee@geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}
2007 Jun 28
1
saving objects with embedded environments
...0 year 2007 month 04 day 23 svn rev 41293 language R version.string R version 2.5.0 (2007-04-23) Robert McGehee, CFA Quantitative Analyst Geode Capital Management, LLC One Post Office Square, 28th Floor | Boston, MA | 02109 Tel: 617/392-8396 Fax:617/476-6389 mailto:robert.mcgehee at geodecapital.com This e-mail, and any attachments hereto, are intended for us...{{dropped}}