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/modprobe.htm
Thanks in advance.
best,
Steve
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Is there a way I can tell R, that every 4 digits, a new number begins?
?read.fwf
I treif different things with sep.
data - read.table (RA19930101.txt,header=F,sep=)
Thanks for your help again in this topic.
Sybille
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a lot
muting
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New
of a
vector? If not, is there a better way to duplicate all elements of a vector
except for the first and last? (I know you can achieve this using two
lines, but I'm writing because I want to do it using one.)
Alan
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of
these and other appropriate methods?
I'm not looking for specific code, just sort of a list of the common
approaches with information about efficiency.
Thanks,
Jack
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On 5/13/2010 11:04 AM, Chuck Cleland wrote:
On 5/13/2010 10:02 AM, John Edwards wrote:
Hello,
How ls() only functions or only data objects (basically anything other than
functions) such as data.frame, numeric ...?
c(ls.str(mode = function))
ls()[!(ls() %in% c(ls.str(mode=function
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?
Thank you for you help
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))
To scale more than one variable in a concise call, consider something
along these lines:
apply(iris[,1:4], 2, function(x){ave(x, iris$Species, FUN = scale)})
hope this helps,
Chuck Cleland
--- On Sun, 11/29/09, Karsten Wolf w...@uni-bremen.de wrote:
From: Karsten Wolf w...@uni-bremen.de
/posting-guide.html
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Is there a more elegant way of doing it?
with(x, ave(x=values, factor, FUN=function(x){x/mean(x)}))
[1] 0.667 1.333 0.667 1.333 0.667 1.333
?ave
Thanks a lot!
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code.
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xlab=Action,ylab=Predicted Pop,
xlim=c(xmin,xmax),ylim=c(ymin,ymax),
auto.key=list(text=c('EAM','NULL'), corner=c(1,1
Thanks!
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, Day, Wgt)
daily
daily.sub-subset(daily, subset=Trial==2 Tanks==a4|Trial==2
Tanks==c4|Trial==2 Tanks==h4)
daily.sub1-as.data.frame(daily.sub)
attach(daily.sub1)
daily.sub1
x11()
plot(Day, Wgt)
#plot(Day, Wgt, pch=c(2,19,21)[Tanks])
detach(daily.sub1)
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superman are the first,
fourth and fifith element in a? Please help me out. Thanks.
a - c(superman, xamn, spiderman, superman,
superman, xman, spiderman)
grep(^superman$, a)
[1] 1 4 5
?grep
OR
which(a %in% superman)
[1] 1 4 5
?which
?is.element
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code.
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in the range [-3,-2.9) have the same factor... [-3,-2.9) etc.
I would assume R has such a function but I cant recall which one it is.
?cut
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.
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code.
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),
covar = rep( covar, ncases),
case.id = rep(case.id, ncases)))
The idea is to first reshape() and then rep() each variable ncases
times. You can then convert newdf$level into a factor if you like.
Thank you very much!!
Ahimsa
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On 2/23/2008 6:09 AM, Chuck Cleland wrote:
On 2/22/2008 8:01 PM, Robert Walters wrote:
R folks,
As an R novice, I struggle with the mystery of subsetting. Textbook
and online examples of this seem quite straightforward yet I cannot
get my mind around it. For practice, I'm using the code
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Is there a command in R where i can just type, and it will download it for
me?
RSiteSearch(lmFit) shows there is a function with that name in the
limma package.
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PLEASE
edge into the
diagram, but maybe that is explained in the documentation for the sna
and Rgraphviz packages.
Thanks in advance!
Regards,
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on this list may meet your needs:
http://www.r-project.org/doc/bib/R-books.html
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(tension = M, wool = B),
b=list(tension = H, wool = B))$X
(Intercept) tensionM tensionH woolB tensionM:woolB tensionH:woolB
1 01 -1 0 1 -1
Chuck Cleland wrote:
One approach would be to use glht() in the multcomp package. You
.
Chuck Cleland wrote:
Each column corresponds to one of the coefficients in the model, and
each row specifies a particular contrast. The numbers in the matrix
indicate how the model coefficients are combined to indicate a
particular difference in means.
For example, the first row
with no explanatory variable effects of any kind, based
only on the overall location of the response.
I guess my question is, if I want to know if each of those is different from
0, then should I use the 48df from the full model, or the 9 for each cell?
Chuck Cleland wrote:
That does not corresponds
.
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NDRI
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
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tel: (212) 845-4495 (Tu
, reproducible code.
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Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
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Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71
, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc
do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd
-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West
-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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20080103
20080112
How to do it? Thank you very much
Julia
dates - c(2/27/1992, 2/27/1992, 1/14/1992,
2/28/1992, 2/1/1992)
as.character(as.Date(dates, %m/%d/%Y), %Y%m%d)
[1] 19920227 19920227 19920114 19920228 19920201
?as.Date
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Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West
))
but isn't there something more streamlined? My first guess was
y=c(2,3)
which(x==y)
integer(0)
which doesn't work. I haven't found any clue in the R manual.
How about this?
which(x %in% c(2,3))
Thanks!
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th
-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512
-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
this:
myIDs - c('A1','B1','B2','B3','B4','B6','B7','B8','B9','B13','C1','G1')
subset(mumpup, ID %in% myIDs)
Best wishes,
Ross
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax
-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New
148.91
24 14 -1 151.61
25 19 -1 156.91
26 4 -1 155.71
aggregate(Oxboys[,-1], list(Subject = Oxboys$Subject), tail, n=1)
..
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Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu
Petal.Width virginica 2.026
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Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
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--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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On 8/11/2008 11:26 AM, dott wrote:
Hi,
I'd like to take difference for a sequence a between a_i and a_i-2, for
instance,
a-c(2,3,4,8,1)
I need (2, 5, -3) as a result. If not using a for loop, can anyone help me?
Thanks a lot.
Dot
a - c(2,3,4,8,1)
diff(a, lag=2)
[1] 2 5 -3
?diff
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Chuck
://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212
and provide commented, minimal, self-contained, reproducible code.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
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