Displaying 20 results from an estimated 20000 matches similar to: "is.Date function question"
2005 Sep 19
5
FDR analyses: minimum number of features
Dear List,
We are planning a genotyping study to be analyzed using false discovery
rates (FDRs) (See Storey and Tibshirani PNAS 2003; 100:9440-5). I am
interested in learning if there is any consensus as to how many
features (ie. how many P values) need to be studied before reasonably
reliable FDRs can be derived. Does anyone know of a citation where
this is discussed?
Bill Dupont
William D.
2006 Apr 17
1
strsplit does not return correct value when spliting "" (PR#8777)
Full_Name: Charles Dupont
Version: 2.2.0
OS: linux
Submission from: (NULL) (160.129.129.136)
when
strsplit("", " ")
returns character(0)
where as
strsplit("a", " ")
returns "a".
these return values are not constiant with each other.
Charles Dupont
2005 Oct 31
1
Problem with migrate
I have a migration that is failing.
I am trying to create new records in a table.
class BasicAnswerTypes < ActiveRecord::Migration
def self.up
# this adds basic answer types and response types to the database
ResponseType.create :name => "boolean"
end
def self.down
ResponseType.find_by_name("boolean").destroy
end
end
when I run rake
2005 Jul 08
2
Multiple assignments in one statement
Is this possible?
For instance, I have a function that returns a vector length 3. In one
statement I'd like to assign each element of the vector to different
variables. Syntactically, I hoped this would work:
c(x,y,z) <- myfun();
Thanks,
--
Jeffrey Horner Computer Systems Analyst School of Medicine
615-322-8606 Department of Biostatistics Vanderbilt University
2007 Jan 16
2
Why does not the command 'length(a <- 1:5) <- 4' not work?
when running the command
> length(a <- 1:5) <- 4
there are two responses.
If 'a' does not exist then the response is
Error in length(a <- 1:5) <- 4 : object "a" not found
If 'a' does exist then the response is
Error in length(a <- 1:5) <- 4 : could not find function "<-<-"
I would assume that 'length(a <- 1:5) <-
2010 Mar 24
1
R warning and error messages taking a long time and generating pop-up windows
Hi all, thanks for your help in advance.
I was running some scripts and suddenly R began taking a very long time to process mundane errors, which I often generate since I am new to R...such as forgetting to add in my quote
getOption(warn)
Error in options(x) : object 'warn' not found
Not only does the warning message print in the R console when it finally writes the error, but it also
2005 Jan 21
2
Struggling with S3/S4 interface issues and External Pointers
I'm currently working on embedding R into the Apache2 webserver (with
some positive results...), but I'm struggling to identify the best way
to expose the apache data and functions to R.
A couple of thoughts:
In light of the recent discussion on "S3/S4 classes performance
comparson", I'm leaning toward implementing the interface with S3 style
classes. I appreciate
2006 Mar 07
1
possible bug: NULL equality in lists.
I was messing around with R and I found an example R behaving oddly:
a <- alist(NULL, "bob", c(3,6,2,3))
a
a == 'NULL'
a == "NULL"
a == 'cat'
If I create a list with a NULL value
>a <- alist(NULL, "bob", c(3,6,2,3))
>a
[[1]]
NULL
[[2]]
[1] "bob"
[[3]]
c(3, 6, 2, 3)
and run some tests on 'a', the '==
2005 Sep 22
0
FW: FDR analyses: minimum number of features
Dear Dr. Graves
Many thanks for your response. FDRs and their associated q values do
differ from Type I error rates and P values (See Storey and Tibshirani
PNAS 2003;100:9440-5). It is an approach that is rapidly gaining
popularity in the analysis of genomic data where we have massive numbers
of covariates measured on a comparatively modest number of subjects. To
my mind it is a real advance
2004 Aug 18
3
R as shared library
Hello folks,
I'm embarking on a project to embed R into the Apache web server, and
I'd like your help. Currently, I'm looking for a way for R code to call
back into a shared library from which the R shared library was loaded.
Essentially, apache starts and loads mod_R.so which runs an
initialization routine which calls Rf_initEmbeddedR() and the following
code:
/* override to
2009 Oct 06
1
Samba directory level security
Good morning all,
We are moving our web server from novell to unix (solaris) and will be using samba to allow users to edit web pages. Our samba instance authenticates using ADS and the users do not necessarily have accounts on the server itself. We are attempting to allow users to map a single samba share but only see the directories they have read access to (see configuration below). Any
2008 Sep 03
1
problem with Hmisc
Dear All,
I'm reading Frank Harrell's wonderful Regression
Modeling Strategies book and ran into a problem
following the example in Chapter 8. I'm working
on
platform: Ubuntu 8.04 (i486-pc-linux-gnu)
R version: 2.7.2 (2008-08-25)
and my command sequence was:
library(chron)
library(Hmisc)
load("prostate.sav")
describe(prostate)
The last command returned the error
2007 Mar 20
1
wishlist -- Fix for major format.pval limitation (PR#9574)
Full_Name: Charles Dupont
Version: 2.4.1
OS: linux 2.6.18
Submission from: (NULL) (160.129.129.136)
'format.pval' has a major limitation in its implementation. For example
suppose a person had a vector like 'a' and the error being ?0.001.
> a <- c(0.1, 0.3, 0.4, 0.5, 0.3, 0.0001)
> format.pval(a, eps=0.01)
If that person wants to have the 'format.pval'
2008 Sep 29
1
describe function in package Hmisc and function format.dates in chron (PR#13087)
Full_Name: Kem Phillips
Version: 2.7.1 (2008-06-23)
OS: Windows Xp professional
Submission from: (NULL) (98.221.200.108)
The Hmisc function describe fails, giving the error message:
Error in formatDateTime(dd, atx, !timeUsed) :
could not find function "format.dates"
Loading the chron package, where function dates apparently resides, does not
fix the problem. Note
2008 Sep 15
1
randomly sample within clustered data?
Dear useRs,
What is an efficient way to randomly sample from clustered data such
that I get equal representation from each cluster? For example, let's
say I want to randomly sample two cases from each cluster created by the
"id" variable in the following data frame:
> id<-c(rep("100", 4),rep("101", 3), rep("102", 6), rep("103",
2011 Sep 30
1
Odd gridding pattern when plotting
Hi, I'm no longer on the subscribing list, but was hoping to get my question posted.? Please inform if this is ok, although I am guessing you wont post with the image below.? If so, let me know and I will resend without the image.
Thanks
Hi,
I just upgraded my system and my version of R all at once.? Upon running old code for heatmaps etc, I suddenly notice that there is an odd grid pattern
2007 Feb 20
0
fix for a major format.pval limitation
'format.pval' has a major limitation in its implementation for example
suppose a person had a vector like 'a' and the error being ?0.001.
> a <- c(0.1, 0.3, 0.4, 0.5, 0.3, 0.0001)
> format.pval(a, eps=0.001)
The person wants to have the 'format.pval' output with 2 digits always
showing like this
[1] "0.10" "0.30"
2007 Mar 02
0
Patch for format.pval limitation in format.R
'format.pval' has a major limitation in its implementation for example
suppose a person had a vector like 'a' and the error being ?0.001.
> a <- c(0.1, 0.3, 0.4, 0.5, 0.3, 0.0001)
> format.pval(a, eps=0.001)
The person wants to have the 'format.pval' output with 2 digits always
showing like this
[1] "0.10" "0.30"
2002 May 16
3
building packages on windows
Has anyone had success building a package on a windows machine?
I am trying the following command with no luck (perhaps my flags are
incorrect?). At this point I am stuck. Any help greatly appreciated.
Niels Waller
(BTW - I have no idea why it cannot find sh.exe since I have it is a
directory that is specified in a path statement)
H:\R\bin>rcmd build --binary --use-zip h:\taxon2
* checking
2015 Jun 22
2
Samba 3 AD Member Server Strangeness
On Monday, June 22, 2015 9:15 AM ,Rowland Penny wrote:
> On 22/06/15 13:55, Brian.Huffman at dupont.com wrote:
> > On , June 20, 2015 5:10 AM, Rowland Penny wrote:
> >> On 19/06/15 21:39, Brian.Huffman at dupont.com wrote:
> >>> All,
> >>>
> >>> I'm trying to configure a Samba 3 AD member server including
> >>> winbind. I'm