Displaying 20 results from an estimated 500 matches similar to: "car/MANOVA question"
2013 Jan 31
3
Locate Patients who have multiple high blood pressure readings
On Thu, Jan 31, 2013 at 10:29 AM, Weijia Wang <wwang.nyu@gmail.com> wrote:
> Hi,
>
>
>
> I have a new question about subsetting in R.
>
>
>
> Say we have this data frame:
>
>
>
> PT_ID Blood_Pressure OBS_TYPE
>
> 92 1900 90.0 DBP
>
> 94 1900 90.0 DBP
>
> 174 2900 140.0 SBP
>
> 176 2900
2006 Feb 26
1
assigning differences in a loop
Dear All
I would need to generate differences between variates such as
nam1<-nam2-nam3 in the following loop:
for(i in c("13","26","38")) {
for (j in c("HR","PQ","QRS","QT")){
nam1<-paste("d",j,i,sep="")
nam2<-paste(j,i,sep=".")
2003 Sep 24
1
partial matching in data frame subscripting
I'm not sure if the following is a bug or a feature:
> jjmat <- array(1:6, c(2,3), list(c('ABC', 'DEF'), c('xyz', 'tuv',
'qrs')))
> jjdf <- as.data.frame(jjmat)
> jjmat['AB', ]
Error: subscript out of bounds
> jjdf['AB',]
xyz tuv qrs
ABC 1 3 5
> jjmat[, 'tu']
Error: subscript out of bounds
2010 Sep 06
3
Finding the two most recent dates
Dear R help,
I have the following data frame:
structure(list(prochi = c("ind_1", "ind_1", "ind_1",
"ind_1", "ind_1", "ind_1", "ind_1", "ind_1",
"ind_1", "ind_1"), date_1st_event = structure(c(14784,
14784, 14784, 14784, 14784, 14784, 14784, 14784, 14784, 14784
), class = "Date"),
2001 Jun 15
1
contrasts in lm and lme
I am using RW 1.2.3. on an IBM PC 300GL.
Using the data bp.dat which accompanies
Helen Brown and Robin Prescott
1999 Applied Mixed Models in Medicine. Statistics in Practice.
John Wiley & Sons, Inc., New York, NY, USA
which is also found at www.med.ed.ac.uk/phs/mixed. The data file was opened
and initialized with
> dat <- read.table("bp.dat")
>
2005 May 27
4
plotting box plots on same x
I am trying to construct a graph of 6 box plots of blood pressures. I
want them to be on a single set of axis and I want the SBP to be ontop
of the DBP. I have an array bp with the data in it and I tried
a[1,]<-c(145,60,147,62,140,57)
a[2,]<-c(160,75,160,74,160,70)
a[3,]<-c(140,55,140,65,142,55)
boxplot(data.frame(a), main = "Blood Pressures", at=c(1,1,2,2,3,3),
2011 Mar 20
3
manova question
Dear friends,
Sorry for this somewhat generically titled posting but I had a question
with using contrasts in a manova context. So here is my question:
Suppose I am interested in doing inference on \beta in the case of the
model given by:
Y = X %*% \beta + e
where Y is a n x p matrix of observations, X is a n x m design matrix,
\beta is m x p matrix of parameters, and e is a
2010 Aug 05
1
an issue about missing data
Hi,
I am using a function 'polygenic' in the package called 'GenABEL'.
--------------------------------------------------------------------------------
> h2.gs <- polygenic(b.dbp~age+age2+age3+sex+b.bmi, kin=gs.gkin, data=gs)
-------------------------------------------------------------------------------
## and I got the following error message:
Error in svd(X): infinite or
2019 May 03
2
Cross compiling an empty program results in a segfault
Sorry for the late reply.
Thanks, Eli. That was really helpful.
On Fri, Apr 12, 2019 at 9:31 PM Eli Friedman <efriedma at quicinc.com> wrote:
> “--entry main” is not going to do what you want; the entry point for a
> Linux program is not equivalent to the C “main”.
> http://dbp-consulting.com/tutorials/debugging/linuxProgramStartup.html
> has a description of how a C program
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
2007 Oct 06
1
override variables
Hi,
I am trying to allow certain nodes to override variables in inherited
classes. Here''s an example:
node ''my.server.com'' inherits webserver {}
node ''other.server.com'' inherits webserver { $var = "newvalue" }
node webserver { $var = "value"
include snmp, dns, classx
}
In this example classx ends up using
2008 Oct 23
4
odfWeave error
odfWeave is throwing up a cryptic error, after successfully processing a
file with a large number of figures (~30) and many \Sexpr{} calls. The
error is (at least to me) cryptic. I am not sure where to look to
correct this problem.
Here's the error:
Post-processing the contents
Error in .Call("RS_XML_Parse", file, handlers, endElementHandlers,
as.logical(addContext), :
2010 Jun 18
1
Latex problem in Hmisc (3.8-1) and Mac Os X with R 2.11.1
Dear all,
I did post this more or less identical mail in a follow up to another
question I posted, but under another heading. I try again, but now
under the correct header.
upon running this code (from the Hmisc library-latex function) I
believe the call to summary.formula is allright and produces wonderful
tables, but the latex command results in a correct formatted table but
where all the
2013 Jul 20
0
problem with minus signs when using postscript/pdf functions with ComputerModernItalic family
When I use the postscript with the ComputerModernItalic family, minus signs are not properly displayed, but are changed into capital gammas. The attached test-postscript.pdf file illustrates the problem, which I created starting with the following R code:
> postscript("test-postscript.eps", family = "ComputerModernItalic")
> plot(seq(-5,5,1),seq(-5,5,1))
> dev.off()
2012 Nov 29
0
Simper analysis with Morisita-Horn
Dear ecology fellows,
I tried to implement Morisita-Horn distance (instead of Bray that is in the
current version) in the code for the Simper analysis in vegan. I would be
very grateful if someone can check if the code is right.
function (comm, group, ...)
{
if (any(rowSums(comm, na.rm = TRUE) == 0))
warning("you have empty rows: results may be meaningless")
2006 Jan 14
2
CentOS 4.2 x86_64
I have a couple of 64-Bit Xeon's with CentOS 4.2 x86_64 installed on
them. They don't all have the same motherboards.
I've having a difficult time getting CentOS 4.2 x86_64 to boot on some
of them in SMP mode (UP works fine). After the installation of CD, it
boots up but kernel panics with the following error:
Badness in i8042_panic_blink at drivers/input/serio/i8042.c:992
This is
2019 Apr 10
2
Cross compiling an empty program results in a segfault
Hello,
I'm trying to cross compile an empty program on macOS for Linux:
cat test.c
int main() {
int a = 2+3;
return 0;
}
clang -o -c -target x86_64-linux-gnu test.c
If I copy the resulting test.o to the Linux machine and run clang test.o,
it works fine.
However if I try to link it on macOS, I get a segfault when I launch ./a.out
ld.lld --entry main test.o
[copy a.out to
2006 Oct 05
13
Unbootable system recovery
I have just recently (physically) moved a system with 16 hard drives (for the array) and 1 OS drive; and in doing so, I needed to pull out the 16 drives so that it would be light enough for me to lift.
When I plugged the drives back in, initially, it went into a panic-reboot loop. After doing some digging, I deleted the file /etc/zfs/zpool.cache.
When I try to import the pool using the zpool
2012 Jul 12
2
How to get all list item to one string variable
Hi,
How to get all list item to one string variable.
example
a[1]="abc"
b[1]="def"
output="abc def"
Thanks
B.Purushothaman
--
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Sent from the R help mailing list archive at Nabble.com.
2006 Jul 31
3
Great R documentation
Dear all,
I'm trying to improve the documentation I provide my R packages, and
to that end I'd like to find out what you think is great R
documentation. I'm particularly interested in function documentation,
but great vignettes, websites or book are also of interest.
What is your favourite bit of R documentation, and why?
Thanks,
Hadley