Displaying 20 results from an estimated 32 matches for "ntest".
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2013 Apr 17
2
Problem with DateVisit-gives wrong year?
...r of dates that I want to converted to Date class so I can extract the month
> test.date
[1] 14/05/2012 14/05/2012 14/05/2012 14/05/2012 14/05/2012 14/05/2012
[7] 14/05/2012 14/05/2012 14/05/2012 14/05/2012
201 Levels: 01/10/2012 01/11/2012 01/12/2012 02/07/2012 ... 28/09/2012
I use code below
ntest.date<-as.Date(test.date,'%d/%m/%y')
but the output has the wrong year, and the reverse order
ntest.date
[1] "2020-05-14" "2020-05-14" "2020-05-14" "2020-05-14" "2020-05-14"
[6] "2020-05-14" "2020-05-14" "2020-0...
2006 Sep 05
2
dovecot-sieve with FreeBSD
Hello,
I've a test system with postfix (SMTP), dovecot (IMAP only) and covecot-LDA (MDA) under FreeBSD-6.1. Currently everything works fine. But I wasn't able to install dovecot-sieve from the CVS. Does anyone has a small documentation howto install dovecot-sieve on FreeBSD.
Thanks.
--
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2011 Oct 07
1
Unexpected behavior of extract (`[`) or sapply functions
...t;- sapply(test.df[,factor.cols, drop=F], levels)
cat("test.levels:\n"); print(test.levels)
no.levels <- sapply(sapply(data.df[,factor.cols, drop=F], levels), length)
cat("no.levels:\n"); print(no.levels)
}
# Run it with two factors and again with 1, Output below
cat("\nTest 2 factors:\n")
getLevels(test.df, c(1,2), 4)
cat("\nTest 1 factor:\n")
getLevels(test.df, c(1), 4)
Test 2 factors:
> getLevels(test.df, c(1,2), 4)
test.levels=
$AA
[1] "A" "B"
$BB
[1] "C" "D" "E"
no.levels=AA BB
2 3
> cat...
2010 Jan 21
2
about loops
Hello !
I have a quick question about loops.
For example, I have a 1 * 1 square and its inscribed circle tangent i, whose radius, of course, is also 1.
The loop here is as the following:
generate n points, say 5, in the square randomly repeatedly until we have five in total in the circle, then we stop, otherwise we continue.
I do not know how !
Help me Please ~
Thank you very much for
2007 May 10
3
how to control the sampling to make each sample unique
I have a dataset of 10000 records which I want to use to compare two
prediction models.
I split the records into test dataset (size = ntest) and training dataset
(size = ntrain). Then I run the two models.
Now I want to shuffle the data and rerun the models. I want many shuffles.
I know that the following command
sample ((1:10000), ntrain)
can pick ntrain numbers from 1 to 10000. Then I just use these rows as the
training dataset....
2008 Oct 15
1
Forecasting using ARIMAX
..., depVar, IndepVar1 Period, indepVar1, IndepVar2 Period, indepVar2
Jan 1998,708,Jan 1998,495,Jan 1998,245.490
Feb 1998,670,Feb 1998,421.25,Feb 1998,288.170
Mar 1998,642.5,Mar 1998,395,Mar 1998,254.950
Apr 1998,610,Apr 1998,377.5,Apr 1998,230.640
:
> (nrowDepVar <- nrow(depVar))
[1] 545
> (nTest <- nInstance + nHorizon - 1) #number of latest points reserved for testing
[1] 13
> (nTrain <- nrowDepVar - nTest)
[1] 532
First I use auot.arima to find the best (p,d,q).
> modArima <- auto.arima(depVar[1:nTrain,], trace=TRUE)
ARIMA(2,1,2) with drift : 4402.637
ARIMA(0,...
2003 Apr 02
4
randomForests predict problem
...m
I doing wrong ?
> library(mlbench)
> library(randomForest)
> data(Soybean)
> test <- sample(1:683, 150, replace=F)
> sb.rf <- randomForest(Class~., data=Soybean[-test,])
> sb.rf.pred <- predict(sb.rf, Soybean[test,])
Error in matrix(t1$countts, nr = nclass, nc = ntest) :
No data to replace in matrix(...)
I did it the same way with rpart and all worked fine :
> library(rpart)
> sb.rp <- rpart(Class~., data=Soybean[-test,])
> sb.rp.pred <- predict(sb.rp, Soybean[test,], type="class")
Thank you all for any advice you can give...
2007 Jan 22
0
Recursive-SVM (R-SVM)
...lt;- seq(1, nSample)
if( CVtype == "LOO" )
{
CVnum <- nSample
} else
{
if( CVnum == 0 )
{
CVnum <- nSample
}
}
## vector for test error and number of tests
ErrVec <- vector( length=length(ladder))
names(ErrVec) <- paste("Lev_", ladder, sep="")
nTests <- 0
SelFreq <- matrix( 0, nrow=nGene, ncol=length(ladder))
colnames(SelFreq) <- paste("Lev_", ladder, sep="")
## for each CV
for( i in 1:CVnum )
{
## split data
if( CVtype == "LOO" )
{
TestInd <- i
TrainInd <- SampInd[ -TestInd]
} else
{...
2012 Feb 17
4
2.0.X -> 2.1 pitfalls?
Hi all,
are there any pitfalls known for the migration from 2.0.18 to 2.1?
Can I simply stop dovecot, make install and start again?
--Frank Elsner
2012 Sep 02
1
Environment when NextMethod is used
...he same error, since the issue has to do with an import):
envtest <- function() {
dat <- data.frame(x = 0, y = 0)
f <- factor(c("a", "b"))
# Print the starting data
cat("\nf : ")
cat(f)
cat("\n\nTests with %in% operator ----------------------------")
# OK
cat('\n"x" %in% Names(y ~ x, data = dat) : ')
cat("x" %in% Names(y ~ x, data = dat))
# OK: Save boolean values to idx, then use f[idx]
cat('\nidx <- "x" %in% Names(y...
2011 Sep 29
1
virsh cannot list broken guest.
Hi,
I am starting to learn using libvirt with kvm on CentOS 6.
Just used this command to start a guest:
virt-install -ntest -r1024 --vcpus=1
-c/var/lib/libvirt/images/CentOS-6.0-x86_64-netinstall.iso
--os-type=linux --os-variant=rhel6 --disk vol=kvmguests/test --vnc -v
--virt-type=kvm --check-cpu --prompt --arch=x86_64
Then I found out that I misconfigured vnc. And I do not know how to
gracefully stop qemu. So I kille...
2006 Dec 22
3
multiline system call
Hello,
I am trying to call sendmail from within R via system(). As sendmail reads
from STDIN, I need to pass a multiline input as an argument.
E.g. (not working):
system('sendmail -f xxx at swing.be -t yyy at swing.be\ntest\n.\n')
I tried a lot of ways to type the EOL characters, but cannot get them work the
right way. This leads to several problems. For instance, R waits for me to
enter <control-D> at the end of the sequence.
Thanks for any help.
--
Nicolas Mazziotta
The contents of this e-mail, in...
2003 Jul 30
2
Comparing two regression slopes
...SSall <-sum(lm1$model[,2]^2) + sum(lm2$model[,2]^2)
SSprod <-sum(lm1$model[,2]^2) * sum(lm2$model[,2]^2)
F.val <-(as.numeric(coefficients(lm1)[2]) - as.numeric(coefficients(lm2)
[2]))^2/((SSall/SSprod)*sigma)
p.val <-1-pf(F.val, 1, (lm1$df.residual + lm2$df.residual-4))
cat("\n\nTest for equality between two regression slopes\n\n")
cat("\nCoefficients model 1:\n\n")
print(coef1)
cat("\nCoefficients model 2:\n\n")
print(coef2)
cat("\nF-value on 1 and", lm1$df.residual + lm2$df.residual-4, "degrees of
freedom:" ,F.val, "\n"...
2005 Jul 19
2
segfault with grid and null unit (PR#8014)
...rid") and had the following code, where I'd mis-typed 1,3 instead of 1,2 as the
first arguments to grid.layout.
Sourcing this code causes the R GUI to crash. I've enclosed a partial backtrace
from the crash below.
==============
require(grid)
sometext = "hello there\nthis is a \ntest!"
pushViewport(
viewport(
layout=grid.layout(1,3,
widths=unit.c(
unit(1,"strwidth",sometext) +
unit(2,"cm"),
unit(1,"null&qu...
2016 Oct 17
2
Dict proxy client returning empty string instead of multiline string
...777, st_size=0, ...}) = 0
> > > >>>>>> [...]
> > > >>>>>> write(8, "H2\t0\t0\tadmin at domain.tld\tsieve\n", 30) = 30
> > > >>>>>> [...]
> > > >>>>>> read(8, "Otest\1r\1ntest\n", 8192) = 14
> > > >>>>>>
> > > >>>>>> Indeed "\1r" and "\1n" are the escape sequences used by
> > > >>>>>> "lib/strescape.c". I went deeped and debugged the call to "dict...
2016 Oct 16
2
Dict proxy client returning empty string instead of multiline string
...nning "doveadm dict get"
against the dict socket:
connect(8, {sa_family=AF_UNIX, sun_path="..."}, 110) = 0
fstat(8, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
[...]
write(8, "H2\t0\t0\tadmin at domain.tld\tsieve\n", 30) = 30
[...]
read(8, "Otest\1r\1ntest\n", 8192) = 14
Indeed "\1r" and "\1n" are the escape sequences used by
"lib/strescape.c". I went deeped and debugged the call to "dict_lookup"
performed by doveadm. Indeed the client gets the proper string from the
socket and to my surprise, it is...
2011 Oct 30
1
Normality tests on groups of rows in a data frame, grouped based on content in other columns
Dear R users,
I have a data frame in the form below, on which I would like to make normality tests on the values in the ExpressionLevel column.
> head(df)
ID Plant Tissue Gene ExpressionLevel
1 1 p1 t1 g1 366.53
2 2 p1 t1 g2 0.57
3 3 p1 t1 g3 11.81
4 4 p1 t2 g1 498.43
5 5 p1 t2 g2 2.14
6 6 p1 t2 g3 7.85
I
2008 Apr 13
2
Arrays and functions
Hi, I' am doing a stats project using R to work out the size of a t-test and wilcoxon test depending on the distribution and sample size. I just can't get it to work - I want to put my results from the function size() into an array.At the moment I keep getting the error message:Error in res[distribution, test, samplesize] <- results : subscript out of boundsCan anyone tell me where
2016 Oct 17
2
Dict proxy client returning empty string instead of multiline string
...t;>
>> connect(8, {sa_family=AF_UNIX, sun_path="..."}, 110) = 0
>> fstat(8, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
>> [...]
>> write(8, "H2\t0\t0\tadmin at domain.tld\tsieve\n", 30) = 30
>> [...]
>> read(8, "Otest\1r\1ntest\n", 8192) = 14
>>
>> Indeed "\1r" and "\1n" are the escape sequences used by
>> "lib/strescape.c". I went deeped and debugged the call to "dict_lookup"
>> performed by doveadm. Indeed the client gets the proper string from th...
2016 Oct 17
2
Dict proxy client returning empty string instead of multiline string
...;>> fstat(8, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
> >>>>>> [...]
> >>>>>> write(8, "H2\t0\t0\tadmin at domain.tld\tsieve\n", 30) = 30
> >>>>>> [...]
> >>>>>> read(8, "Otest\1r\1ntest\n", 8192) = 14
> >>>>>>
> >>>>>> Indeed "\1r" and "\1n" are the escape sequences used by
> >>>>>> "lib/strescape.c". I went deeped and debugged the call to "dict_lookup"
> >>>...