Displaying 20 results from an estimated 1000 matches similar to: "interesting statistics article in NYT"
2008 Mar 06
2
How to hold a value(Mean sq) with a string
Hi all:
Can someone advice me on how to hold the residuals
Mean sq value on a string
so it can be used in other calculations.
I was trying something like this:
Msquare<-dfr$Mean sq but fails..Thanks
dfr <- read.table(textConnection("percentQ
Efficiency
1.565 0.0125
1.94 0.0213
0.876 0.003736
1.027 0.006
1.536 0.0148
1.536 0.0162
2.607 0.02
1.456 0.0157
2.16 0.0103
2009 Jan 07
2
R "Threatens" SAS According to The NYT
On Wed, Jan 7, 2009 at 11:05 AM, ajay ohri <ajayohri at yahoo.com> wrote:
>
> FYI..not a R -Help Topic, buy I dont know which list to post discussions like this.
> Regards,
> Ajay
>
> ---------- Forwarded message ----------
> From: ajay ohri <ajayohri at yahoo.com>
> Date: Wed, Jan 7, 2009 at 10:46 AM
> Subject: Re: R "Threatens" SAS, According to
2011 Mar 23
3
Compare three or more values?
Is there a less cryptic way to compare three or more values?
allTheSame<-c("red","red","red","red")
notAllTheSame<-c(132,132,132,999)
all.identical <- function(vectorToTest){
cIdentical=sum(vectorToTest %in% vectorToTest[1])
return(cIdentical==length(vectorToTest))
}
all.identical(allTheSame)
all.identical(notAllTheSame)
Thanks in
2012 Feb 08
4
String position character replacement
Hi,
Is there a way to efficiently replace specified indices in a string with another character? For example, if I had a vector of strings such as
[1] "hellohowareyoudoing"
[2] "imgoodhowareyou"
[3] "goodandyou"
[4] "yesimgoodijusttoldyou"
[5] "ohyesthatsright"
and had a list of positions that I want to replace with the character "-"
2012 Dec 03
2
Excluding all missing values with dcast ("reshape2" package)
Hello--I'm doing a simple crosstab using dcast:
rawfreq <- dcast(nh11brfs, race3~CHCCOPD, length)
with the results
race3 Yes No NA
1 White non-Hispanic 446 5473 21
2 Other non-Hispanic 29 211 0
3 Hispanic 6 81 1
4 <NA> 10 83 1
How would I modify this call to exclude all missing values; that is, to
obtain
race3
2016 Nov 18
2
problem with normalizePath()
>>>>> Evan Cortens <ecortens at mtroyal.ca>
>>>>> on Thu, 17 Nov 2016 15:51:03 -0700 writes:
> I wonder if this could be related to the issue that I
> submitted to bugzilla about two months ago? (
> https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=17159)
> That is to say, could it be that it's treating the first
>
2016 Nov 17
2
problem with normalizePath()
The packages "readxl" and "haven" (and possibly others) no longer access files on shared network drives. The problem appears to be in the normalizePath() function. The file can be read from a local drive or by functions that don't call normalizePath(). The error thrown is
Error: path[1]="\\Hzndhhsvf2/data/OCPH/EPI/BHSDM/Group/17.xls": The system cannot find the
2016 Nov 30
1
problem with normalizePath()
I found this as well. At our institution, our home directories are on
network shares that are mapped to local drives. The default, it appears, is
to set the location for libraries (etc) to the network share name
(//computer//share/director/a/b/user) rather than the local drive mapping
(H:/). Given the issue with dir.create(), this means it's impossible to
install packages (since it tries to
2024 Dec 12
1
Cores hang when calling mcapply
Hi Thomas,
Glad to hear the suggestion helped, and that switching to a `data.table` approach reduced the processing time and memory overhead?15 minutes for one of the smaller datasets is certainly better! Sounds like the adjustments you devised, especially keeping the multicore approach for `make_clean_names()` and ensuring that `ID_Key` values remain intact, were the missing components you
2011 Oct 12
3
Applying function to only numeric variable (plyr package?)
My data frame consists of character variables, factors, and proportions,
something like
c1 <- c("A", "B", "C", "C")
c2 <- factor(c(1, 1, 2, 2), labels = c("Y","N"))
x <- c(0.5234, 0.6919, 0.2307, 0.1160)
y <- c(0.9251, 0.7616, 0.3624, 0.4462)
df <- data.frame(c1, c2, x, y)
pct <- function(x) round(100*x, 1)
I want to
2002 Apr 23
2
Rsync server on w2k with ssh
Help !
I am running rsync as a service on w2k successfully
using the patch from http://v.iki.fi/~vherva/cygwin-rsync/
I would like to connect to the windows machine from Linux, to
automatically backup the windows machine without user intervention.
I understand that there are network problems using the native rsync
transport under windows. How do I setup ssh with a w2k server?
I have the ssh
2024 Dec 11
1
Cores hang when calling mcapply
How is the server configured to handle memory distribution for individual users. I see it has over 700GB of total system memory, but how much can be assigned it each individual user?
AAgain - just curious, and wondering how much memory was assigned to your instance when you were running R.
regards,
Gregg
On Wednesday, December 11th, 2024 at 9:49 AM, Deramus, Thomas Patrick <tderamus at
2024 Dec 12
1
Cores hang when calling mcapply
Hi Gregg.
Just wanted to follow up on the solution you proposed.
I had to make some adjustments to get exactly what I wanted, but it works, and takes about 15 minutes on our server configuration:
temp <-
??????open_dataset(
????????????sources = input_files,
????????????format = 'csv',
????????????unify_schema = TRUE,
????????????col_types = schema(
????????????"ID_Key"
2009 Feb 03
2
New York Times - R - article a fraud?
I worked on some ad data before and I found NYT article very biaised and not far from a fraud... Anyone knows if they got money from a - company - to play 'R'?
Check out the title: R U Ready for R? Seems to me this title was stolen from XLSolutions www.xlsolutions-corp.com and they never mentioned XLSolutions in the article!
They mentioned commercial R....never mentioned
2024 Dec 11
1
Cores hang when calling mcapply
It's Redhat Enterprise Linux 9
Specifically:
OS Information:
NAME="Red Hat Enterprise Linux"
VERSION="9.3 (Plow)"
ID="rhel"
ID_LIKE="fedora"
VERSION_ID="9.3"
PLATFORM_ID="platform:el9"
PRETTY_NAME="Red Hat Enterprise Linux 9.3 (Plow)"
ANSI_COLOR="0;31"
LOGO="fedora-logo-icon"
2009 Jan 07
2
New York Times Article: Data Analysts Captivated by R's Power
Readers of this list might be interested in the following article in the
New York Times and might find amusing the notion that "Some people
familiar with R describe it as a supercharged version of Microsoft's
Excel spreadsheet software...".
http://www.nytimes.com/2009/01/07/technology/business-computing/07progra
m.html?_r=1&ref=technology
Art
2012 Apr 30
2
Using GEE with sample weights
Dear R community
I am using the gee package to run logistics regression on paired cases from
a panel sample.
We are getting request from a reviewer to use sample weights to account for
different level of attrition.
After searching the documentation I am unable to find a way to incorporate
sample weights into the gee formula. I found a way to incorporate precision
weight but I understand that I
2009 Sep 15
2
Subsetting matrix with values from vector
Hello,
I have a large matrix (data), in which there is a column offerid. The values
are numbers (lets say 1:5)
There is another vector (idnew), which contains some of the offerids and
many more (3:10).
I want a subset of the matrix wiith only those rows, which match the
criteria of the vector.
How can I make it work?
Thanks!
--
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2004 Sep 20
2
installing on alpha
I am trying to install R-1.9.1 on an alpha (Tru64 unix) platform. I had no
problem previously installing R-1.4.0, but cannot get the new installation
to work. First I ran "configure" specifying an alternate installation
directory:
./configure --prefix=/appl/R-1.9.1
then ran "make" (note that this is NOT gmake, which may make the
difference). The error message I
2004 Sep 20
2
installing on alpha
I am trying to install R-1.9.1 on an alpha (Tru64 unix) platform. I had no
problem previously installing R-1.4.0, but cannot get the new installation
to work. First I ran "configure" specifying an alternate installation
directory:
./configure --prefix=/appl/R-1.9.1
then ran "make" (note that this is NOT gmake, which may make the
difference). The error message I