Displaying 20 results from an estimated 200 matches similar to: "Help!"
2011 Dec 15
2
Random Forest Reading N/A's, I don't see them
After checking the original data in Excel for blanks and running Summary(cm3)
to identify any null values in my data, I'm unable to identify an instances.
Yet when I attempted to use the data in Random Forest, I get the following
error. Is there something that Random Forest is reading as null which is not
actually null? Is there a better way to check for this?
> library(randomForest)
>
2007 Jul 26
3
substituting dots in the names of the columns (sub, gsub, regexpr)
Dear R users,
I have the following two problems, related to the function sub, grep,
regexpr and similia.
The header of the file(s) I have to import is like this.
c("y (m)", "BD (g/cm3)", "PR (Mpa)", "Ks (m/s)", "SP g./g.", "P
(m3/m3)", "theta1 (g/g)", "theta2 (g/g)", "AWC (g/g)")
To get rid of spaces and
2015 Jun 18
3
[LLVMdev] problem with replacing an instruction
I am trying to change this
define void @main(float* noalias %arg0, float* noalias %arg1, float*
noalias %arg2) {
entrypoint:
%0 = bitcast float* %arg1 to <4 x float>*
intothis
define void @main(float* noalias %arg0, float* noalias %arg1, float*
noalias %arg2) {
entrypoint:
%0 = getelementptr float* %arg1, i64 0
%1 = bitcast float* %0 to <4 x float>*
I must be close but
2005 Aug 04
1
Where the error message comes from?
Hi all:
I get the following error message that I am not able to resolve.
Error in if (const(t, min(1e-08, mean(t)/1e+06))) { :
missing value where TRUE/FALSE needed
It appears right before the last data.frame statement.
Below is the program that simulates data from one way random effects
model and then computes normality and bootstrap confidence interval for
2005 Jun 17
3
screen fonts
Does anyone know of any programs capable of fine tuning my screen
display settings? I'm using the NVIDIA drivers, and everything is
slightly blurry - regardless of how much (or little) I set anti-aliasing to.
2010 Jan 06
1
boxplot help
Dear Rexperts,
I am trying to add a '+' identifying the mean in a boxplot using the
following
sizelist <- split(size, grp)
centers <- boxplot(sizelist, style.bxp = "att", medpch = "o",
ylab = "Prostate Volume (cm3)")
points(centers, unlist(lapply(sizelist, mean)), pch = "+")
But, I get error
Error in xy.coords(x, y) :
2010 Aug 16
2
When to use bootstrap confidence intervals?
Hello, I have a question regarding bootstrap confidence intervals.
Suppose we have a data set consisting of single measurements, and that
the measurements are independent but the distribution is unknown. If
we want a confidence interval for the population mean, when should a
bootstrap confidence interval be preferred over the elementary t
interval?
I was hoping the answer would be
2011 Feb 04
2
vegan and sweave using xtable
Dear all,
Using:
library(vegan)
data(BCI)
mod <- radfit(BCI[1,])
mod
RAD models, family poisson
No. of species 93, total abundance 448
par1 par2 par3 Deviance AIC BIC
Null 39.5261 315.4362 315.4362
Preemption 0.042797 21.8939 299.8041 302.3367
Lognormal 1.0687 1.0186 25.1528 305.0629 310.1281
2015 Oct 19
3
Managed Languages BOF @ Dev Meeting
On 18 Oct 2015, at 23:08, Sanjoy Das <sanjoy at playingwithpointers.com> wrote:
>
> Supporting only basic block level granularity for "try ranges" may not
> be sufficient for Java -- if a basic block has more than one null check
> in it then throwing the NullPtrException for the first null check (if
> it fails) is semantically different from throwing the
2008 Feb 20
3
Specaccum
Se ha borrado un texto insertado con un juego de caracteres sin especificar...
Nombre: no disponible
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20080220/4ba85b57/attachment.pl
2008 Jun 27
1
Performance of madvise / msync
Hi,
I'm using py-rrdtool 0.2.1 with rrdtool 1.3.0 under 7.0-STABLE, and
there's a couple of things about this new version of rrdtool that
hurt performance under FreeBSD, but apparently help on whatever they
tested on.
For every update, the database file is opened, mapped into memory,
madvise() is called, contents are modified, msync() is called, and
the file is unmapped and closed:
2012 Apr 21
1
Barplot problem
Hello,
I have little experience with r, so I wonder if someone could help me?
I need to plot a diversity measure (Fisher`s alpha) for different sites. I
calculated the values using the following commands:
Data(BCI)
alphaBCI <- fisher.alpha(BCI)
I need boxplots showing the data variation between sites. Then I tried:
boxplot(as.data.frame(alphaBCI))
However, it does not appear the box plots
2015 Oct 18
3
Managed Languages BOF @ Dev Meeting
I won’t be able to attend, but I’d be interested in hearing if any conclusions are reached on several of these topics:
> On 16 Oct 2015, at 21:27, Joe Ranieri via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> - Dealing with the explosion of basic blocks that come up with
> languages where almost every function call, implicit and explicit, can
> raise exceptions.
This
2006 Jan 17
3
Mail.app message numbering for deleted messages
I'm having a strange problem that appeared when I upgraded from
.99something to 1.0alpha3 and then disappeared for a while and then
re-appeared when I upgraded to 1.0alpha5.
I am using mbox and IMAP in Apple's Mail.app to read my mail. When I
delete a message in Mail.app, the message gets marked as deleted in the
spool and it disappears from the mail listing in Mail. However, the
2010 Jun 14
3
Prime Numbers Pkgs - Schoolmath is broken
Looking for a recommended package that handles prime number computations.
Tried the following unsuccessfully:
primeFactors() in the R.basic package failed to install.
primes() and primlist are broken in Schoolmath pkg on CRAN.
My analysis can be found here http://j.mp/9BNI9q
Not sure what the procedure is for getting things fixed, so I've cross-posted to r-dev as well.
--njg
2010 Jun 14
3
Prime Numbers Pkgs - Schoolmath is broken
Looking for a recommended package that handles prime number computations.
Tried the following unsuccessfully:
primeFactors() in the R.basic package failed to install.
primes() and primlist are broken in Schoolmath pkg on CRAN.
My analysis can be found here http://j.mp/9BNI9q
Not sure what the procedure is for getting things fixed, so I've cross-posted to r-dev as well.
--njg
2002 Apr 02
3
getaddrinfo() problem with AIX 4.3.3 and rsync 2.5.2?
I had to apply the following patch to the clientname.c check_name() function
before I could successfully use "hosts allow" in rsyncd.conf. Without the
patch I kept getting "rsync: forward name lookup for ... failed: Host not
found"
errors. These errors were produced by the rsync daemon, and putting in a
debugging statement revealed that the port_buf being used had a large
2020 Feb 03
3
Hard disk activity will not die down
I updated my backup server this weekend from CentOS 7 to CentOS 8.
OS disk is SSD, /dev/md0 are two 4TB WD mechanical drives.
No hardware was changed.
1. wiped all drives
2. installed new copy of 8 on system SSD
3. re-created the 4TB mirror /dev/md0 with the same WD mechanical drives
4. created the largest single partition possible on /dev/md0 and formatted
it ext4
5. waited several hours for the
2010 May 31
1
Vegan fisher.alpha error
Hi,
I have an error with fisher.alpha from the vegan package.
> fisher.alpha(data[[1]])
Error in nlm(Dev.logseries, n.r = n.r, p = p, N = N, hessian =
TRUE, ...) :
missing value in parameter
I am trying to find fisher alpha for a list of 100 data frames, and I
tried it on individual data frames in the list, which gave me the
error above.
I have every data frame in the same format as the
2009 Aug 24
2
dovecot-auth failed: Not enough space
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Dear all,
I've been trying to get a Dovecot IMAP service running under HP-UX
11.23, IA64. The system has 6GB of spare space under /var and at least
the same amount of RAM free at the current time.
I've compiled from the latest source (1.2.4), using the following options:
# CC="/opt/aCC/bin/aCC" ./configure --prefix=/opt/dovecot