Displaying 14 results from an estimated 14 matches for "datac".
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2004 Feb 18
2
using names() as a variable in a formula
Greetings List,
I'm having some trouble with the use of the names function in a formula. Below is an example of something that works (i.e first line), and the second line is the same formula which doesn't. I want to be able to reference the column of the dataC table so I can run the variogram iteratively with a loop.
> v<-variogram(A1~1,loc=~x+y, dataC)
> v<-variogram(names(dataC[3])~1,loc=~x+y, dataC)
Error in model.frame(formula, rownames, variables, varnames, extras, extranames, :
invalid variable type
Where dataC looks like:...
2009 Jun 22
3
Calculating "row standard deviations"
Hi R-helpers,
I have been struggling with calculating row and column statistics,
e.g. standard deviation.
I know that
> datac$Mean<-rowMeans(datac,na.rm=TRUE)
will give me row means.
I have tried to replicate those row means with the apply function:
> datac$Mean2<-apply(datac,2,mean)
so that I can replace the function argument with "sd" (instead of
mean) to get standard deviations.
But, I'm runni...
2011 Oct 23
0
code review: is it too much to ask?
...A's: if na.rm==T, don't count them
length2 <- function (x, na.rm=FALSE) {
if (na.rm) sum(!is.na(x))
else length(x)
}
# Collapse the data
formula <- as.formula(paste(measurevar, paste(groupvars, collapse=" + "), sep=" ~ "))
datac <- summaryBy(formula, data=data, FUN=c(length2,mean,sd), na.rm=na.rm)
# Rename columns
names(datac)[ names(datac) == paste(measurevar, ".mean", sep="") ] <- measurevar
names(datac)[ names(datac) == paste(measurevar, ".sd", sep="") ] <- &...
2007 Jul 24
1
Fit t distribution
Hi all, I am trying to fit t distribution using the function "tFit" in the
library(fBasics).
I am using the code tFit(datac[[2]]) and it returns the following list.
Title:
Student-t Parameter Estimation
Call:
tFit(x = datac[[2]])
Model:
Student-t Distribution
Estimated Parameter(s):
df
78.4428
I just wonder how can I refer to the estimated parameters. I tried
tFit(datac[[2]]) $df,tFit(datac[[2]])@df, but...
2010 Dec 07
2
robustbase problem [bug?] in adjbox function.
...2,9,2,4,3,8,5,10,5,4,4,7,4,7,7,4,16,4,3,12,4,3,10,27,4,14,7,10,4,9,8,3,5,3,8,5,2,8,38,3,3,3,4);
plot(x=c(1,2),y=rep(1,2),ylim=range(data),xlim=c(0.5,2.5),type="n",main=c("Adjusted
boxplot vs. Classical boxplot"),ylab=c("Loss Data"),xlab=c(""),axes=F)
adjbox(x=datac,pars=list(outpch=16,outcex=2,outcol="light
blue"),add=T,at=1,col="light blue")
boxplot(x=datac,pars=list(outpch=16,outcex=2,outcol="light
green"),add=T,at=2,col="light green")
axis(2,at=seq(0,max(data)+10,by=10),col="orange",labels=F)
axis(1,at=c(1,...
2009 Jan 04
1
POSIXct and chron issues with tz
Dear All-
I am trying to merge two data files - they have different date formats
and different times zones. I need to match up the date/time of the
datasets and then invoke a conditional statement, such as: if dataC$mph
is >= 12 then keep dataM$co23 for the corresponding time/date stamp.
snippets of data files:
*dataC.txt*
LST in mph Deg DegF DegF2 % volts Deg mph2 w/m2
0506010000 0.00 13.6 218.1 36.8 -999 65.1 -999 -999
18.2 0.2
0506010005 0.00 12.9 21...
2006 Nov 16
0
Celliax LiveCD 0.0.32 released (Asterisk managing cellular phones, and Skype calls to/from cellphones, via chan_celliax)
Celliax development and download site: www.celliax.org
Celliax is a channel driver for the Asterisk Free PBX that manages GSM
and CDMA cellular phones through an adapter, composed by a datacable
(for commands) and an audiocable (for the voice) interfacing the
computer soundcard.
chan_celliax is also capable of making and receiving Skype calls
through the cellphone, and has an app like app_directory that let you
choose which one of your Skype contacts you want to call.
Celliax runs on...
2001 Mar 16
1
combine dataset
Hi,
I have two data sets look like below:
==========================
state count1 percent1
CA 19 0.34
TX 22 0.35
FL 11 0.24
OR 34 0.42
GA 52 0.62
MN 12 0.17
NC 19 0.34
state count2 percent2
FL 22 0.35
MN 22 0.35
CA 11 0.24
TX 52 0.62
==========================
How to combine these two data set and make it look
like below?
2005 Jan 21
3
Fw: R Citation
...eferences and has the same citation as a pers.comm. The problem for my
paper can be resolved by removing the citation from references to text, but
this seems unfair to R and the package authors for AGU publications. AGU
does recognize some permanent data archives listed here
http://www.agu.org/pubs/datacent.html - maybe it would make sense to have a
mirror at one of these permanent archives for packages and versions.
Regards, Steve McIntyre
----- Original Message -----
From: "Achim Zeileis" <Achim.Zeileis at wu-wien.ac.at>
To: "Steve McIntyre" <stephen.mcintyre at u...
2015 Aug 27
2
partitions
I'd like to set up a Samba DC, an additional DC and a Samba file server.
Everything is configured with RAID 1. I encrypt all partitions except
partition /boot (which is also on RAID).
What partitions, partition sizes, file system types do you use on your
Samba DC, additional DC and file server? Is there something like "best
practice"?
kind regards,
birgit
2015 Aug 27
0
partitions
...your
> Samba DC, additional DC and file server? Is there something like "best
> practice"?
I usually have the following default partitions (LV) on my production
servers
/ 5 GB
/usr 5 GB
/var 5 GB
/tmp (1-n GB)
/home (1-n GB)
swap (4 GB)
+ every shared folder or area datac can grow is on a separate LV, too
All filesystems are XFS. Hardware raid level 6.
You should keep in mind, that you may have folders/areas that can be
filled by services or users with data. And if the volume they are on run
out of space, it could happen, that other services stop running.
An examp...
2015 Aug 28
1
partitions
...s there something like "best
>> practice"?
>
>
>I usually have the following default partitions (LV) on my production
>servers
>
>/ 5 GB
>/usr 5 GB
>/var 5 GB
>/tmp (1-n GB)
>/home (1-n GB)
>swap (4 GB)
>+ every shared folder or area datac can grow is on a separate LV, too
>All filesystems are XFS. Hardware raid level 6.
>
>You should keep in mind, that you may have folders/areas that can be
>filled by services or users with data. And if the volume they are on run
>out of space, it could happen, that other services sto...
2007 Jul 26
0
Fit t Copula
Hi, I am trying to fit t copula to some data, and I am using the following
function in the library(QRMlib).
Udatac <- apply(datac, 2, edf,adjust=1)
tcopulac <- fit.tcopula.rank(Udatac)
But the error message come out "Error in fit.tcopula.rank(Udatac) : Non
p.s.d. covariance matrix"
Could anyone give me some advice? In fact, I am not sure what the "adjust=1"
is used for.
Many thanks....
2002 Apr 15
8
Problem
Hello! If I have a matrix as 1 2
2 3
and I want to change the value 2 in 0, what can I do?
Thank you
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