Hi, Dear all,
Could you please tell me how to select specified column in dataset and do
the concentration-time profiles in R?
Thank you!
xiaoc
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Hi, Dear all,
Could you please tell me how to select specified column in dataset and how
to do
the concentration-time profiles in R?
Thank you!
xiaoc
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Dear all,
Could you please tell me how to do the division calculation in R? That is
to say how to perform the operation of division in R software.
Thank you!
Xiaoc
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Hi Michael,
Yes, I tried ifelse() before but this function returns a numeric value. When I
try to convert it back to POSIXct I get a NA*. If I use if else I get a
POSIXct output although it does not return a correct answer (it only returns
y$timepos even when the condition h9 fails to be met).
Dear all,
Sorry, I means if we must remove the nonparameter value then do the
division calculation or there is any other ways to do?
Thank you!
Xiaoc
2012/5/6 xiaocong zuo xiaocong@gmail.com
Dear all,
Could you please tell me how to do the division calculation in R? That is
to say how
Hey Josh (and everyone),
My apologies, let me be more specific. I have two sets of XY coordinates in
Cartesian space. I would like to compute a correlation between the two sets.
For example, let's say I have two N X 2 matrices, with the first column being
the X coordinate, the second column
Hi Chris,
To get a single value you might need something like a Mantel test, available in
both ecodist and vegan. That test is a permutation test of significance of the
correlation between two distance matrices.
Sarah
On May 6, 2012, at 8:06 AM, Christopher Kurby kur...@gvsu.edu wrote:
Hey
Hi there
I am new user of r, i would need some help to translate som code for vectors
in matlab to r. I have managed to translate the first 7 rows, but not the
rest. Could anyone give me any suggestions for this problem??
Matlab code:
tempo=[];
temps=[];
tempn=[];
tempao=[];
tempas=[];
Perhaps read An Intro to R (shipped with every packaging of R -- type
help.start() to get it) and then look at
http://cran.r-project.org/doc/contrib/Hiebeler-matlabR.pdf
n_o, nan_s, etc. are not functions I have in my Matlab distribution so
I can't give more advice without knowing what they
It looks like part of your problem is that some of your time/date
variables are stored as factors rather than actual times / dates. Use
str() to see which ones and try to convert those. You'll need this
format string: format = %d/%m/%y %H:%M:%S for the ones that are
currently factors.
As regards
Hello,
I'm not very comfortable with nonparametric division, but maybe the bar
operator will do.
help(/)
Hope this helps,
Rui Barradas
xiaocong zuo wrote
Dear all,
Sorry, I means if we must remove the nonparameter value then do the
division calculation or there is any other ways to
Hello,
Also, note that to rbind data frames, like the op says, takes less memory
than to cbind.
x - 1:6
list.1 - list(x,x,x,x,x,x,x,x,x,x,x,x)
test.df3 - as.data.frame(do.call(cbind, list.2))
test.df4 - as.data.frame(do.call(rbind, list.2))
object.size(list.1)
object.size(test.df3)
On Sat, 5 May 2012, Christopher Desjardins wrote:
Hi,
I am a little confused at the output from predict() for a zeroinfl object.
Here's my confusion:
## From zeroinfl package
fm_zinb2 - zeroinfl(art ~ . | ., data = bioChemists, dist = negbin)
## The raw zero-inflated overdispersed data
i don't know perl,but on server site,they give soap:lite using perl ,
go to---http://www.kegg.jp/kegg/soap/doc/keggapi_manual.html
i want to download data from kegg server ,using R only,
how to proceed?
what is mean by SOAP client driver ?
also go to http://soap.genome.jp/KEGG.wsdl
--
View this
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
You need to supply us with some information about what you are doing and
preferebly some code and data. A handy way to provide data is with dput()
Haio joakim.aback at gmail.com writes:
Hi there
I am new user of r, i would need some help to translate som code for vectors
in matlab to r. I have managed to translate the first 7 rows, but not the
rest. Could anyone give me any suggestions for this problem??
Matlab code:
tempo=[];
Hello,
I'm using the fArma package to estimate Hurst exponent by R/S method. I've
some measurements in the following format:
Call_number Call_duration
I'm using the following steps. Am new to R, so it would help if someone
could please confirm if my steps are correct.
Further, this method
Hi,
I want to plot this matrix (I attach the data), it is suposed that each
column is a different time series.
If I do
g-read.table(dataADF.txt, header=F)
and
plot(g[,1],type=l)
it plots the first column plot if I want in a unique graph each colums of
dataA, all in one. How should I
Hello Sir/Madam,
i am interested to send the paper in the R journal please provide me the
information of address submission so i can easily send the paper to the editor
of chief.
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R-help@r-project.org
I have a question regarding customising contrasts for linear models I
read the section in Fox/Weisberg's CAR (2nd ed.) and was
thinking--apparently erroneously--that the following two snippets
would do the same:
# approach 1: default treatment contrasts
# generate data
set.seed()
y -
On 06.05.2012 16:54, Sandeep Khullar wrote:
Hello Sir/Madam,
i am interested to send the paper in the R journal please provide me the
information of address submission so i can easily send the paper to the editor
of chief.
Google R Journal? It will point you to
On 06-05-2012, at 16:54, Sandeep Khullar wrote:
Hello Sir/Madam,
i am interested to send the paper in the R journal please provide me the
information of address submission so i can easily send the paper to the
editor of chief.
It's Editor-in-Chief.
Come on. You could at least try
You can use lines() to add additional lines to your plot.
Sarah
On Sun, May 6, 2012 at 11:39 AM, Trying To learn again
tryingtolearnag...@gmail.com wrote:
Hi,
I want to plot this matrix (I attach the data), it is suposed that each
column is a different time series.
If I do
On Sun, May 6, 2012 at 11:39 AM, Trying To learn again
tryingtolearnag...@gmail.com wrote:
Hi,
I want to plot this matrix (I attach the data), it is suposed that each
column is a different time series.
If I do
g-read.table(dataADF.txt, header=F)
and
plot(g[,1],type=l)
it plots the
On May 6, 2012, at 17:59 , Sandy Miller wrote:
I have a question regarding customising contrasts for linear models I
read the section in Fox/Weisberg's CAR (2nd ed.) and was
thinking--apparently erroneously--that the following two snippets
would do the same:
# approach 1: default
On Sun, May 06, 2012 at 05:19:30PM +0800, xiaocong zuo wrote:
Dear all,
Sorry, I means if we must remove the nonparameter value then do the
division calculation or there is any other ways to do?
Hello:
Do you mean division of numbers, functions or some other objects?
Division of numbers can
It apparently works now. Something weird happens, though: the new column sums 1
extra hour and assigns the day according to its own time. To solve it I
subtracted 1 hour to this new column:
niga$night- as.POSIXct ( ifelse(niga$h=0 niga$h9, niga$a, niga$timepos),
origin=1970-01-01) # it works
Assuming Windows OS with the data you attached copied to the clipboard:
TSdata - read.table(clipboard, header=FALSE, sep=, na.strings=NA,
dec=., strip.white=TRUE)
Then just
matplot(TSdata, type=l)
But you will probably want to select your own colors, line types, and add a
legend:
?matplot
I have two very strong fixed effects in a LMM (both continuous variables).
model - lmer( y ~ time + x1+x2 + (time|subject))
Once I fit an interaction of these variables, both main effects
disappear and I get a strong interaction effect.
model - lmer( y ~ time + x1*x2 + (time|subject))
I would
Hi,I had a question about transforming data into data frame object with two
columns. I have data genal2.txt (see attachment) My data frame called
genal2frame has to be in the form: genal2frame[1:6,]
y mut
10.51056180.005
20.34283920.005
30.5490900
For the record, I was overlooking the obvious point that the statistical
significance of the coefficient indicates only that the confidence interval for
the *difference* in predicted probabilities will not overlap zero. It does not
indicate that the two confidence intervals I was originally
I would like to ask some help for the following object, because I donrsquo;t
know which command in R-project should I use or how to start to solve it. I
attached the file if it is needed.Any help or advice is appreciated. FWHM (Full
Width at Half Maximum) attributionrsquo;s correlation need to
Right, but it seems to me that the error being the NA's in the index field
are caused by the longer vector lengths of columns 4 and 5. I would think
that the EOF in the scanf() (assuming C is used for the source code) would
be called where the NA's begin in columns 1 and 2 since columns 3:5 are
This almost certainly has nothing to do with mixed effects models per
se. x1 and x2 are probably ( if what you see is not due to a few
unusual values) correlated, so the standard decomposition into main
and interaction effects does not have the usual meaningful
interpretation (e,g, that you would
Not sure what your question was. Perhaps you could look up the reshape2 package
and ask a more specific question?
---
Jeff NewmillerThe . . Go Live...
DCN:jdnew...@dcn.davis.ca.us
There is a kegg package available from the BioConductor repository.
Also, you can generate an interface via the SSOAP package:
library(SSOAP)
w = processWSDL(http://soap.genome.jp/KEGG.wsdl)
iface = genSOAPClientInterface(, )
iface@functions$list_datbases()
D.
On 5/6/12 3:01 AM,
On Sun, May 6, 2012 at 3:42 PM, knavero knav...@gmail.com wrote:
Right, but it seems to me that the error being the NA's in the index field
are caused by the longer vector lengths of columns 4 and 5. I would think
that the EOF in the scanf() (assuming C is used for the source code) would
be
On Fri, May 4, 2012 at 3:06 PM, Luis Goncalves lgoncal...@gmail.com wrote:
On May 2 2011, 3:02 pm, Kenn Konstabel lebats...@gmail.com wrote:
On Mon, May 2, 2011 at 2:19 PM, abhagwat bhagwatadi...@gmail.com wrote:
Well, what would be really helpful is to restrict the scope of all
CRAN (and crantastic) updates this week
New packages
* condmixt (1.0)
Maintainer: Julie Carreau
Author(s): Julie Carreau
License: GPL-2
http://crantastic.org/packages/condmixt
Conditional density estimation with mixtures for heavy-tailed
distributions
* crrstep
Bert Gunter gunter.berton at gene.com writes:
This almost certainly has nothing to do with mixed effects models per
se. x1 and x2 are probably ( if what you see is not due to a few
unusual values) correlated, so the standard decomposition into main
and interaction effects does not have the
Hi all,
I´m trying to use write function to save the output of a program (my
constructed H matrix)
randz-matrix(rnorm(100),500,2000)
H-matrix(0,500,2000)
H[1,]-randz[1,]
for (j in 1:2000){
for (i in 2:500){
if(i251)
H[i,j]-0.6*H[i-1,j]+randz[i,j]
else H[i,j]-H[i-1,j]+randz[i,j]
}}
try
write.table(H, file = datad,txt)
On Sun, May 6, 2012 at 5:02 PM, Trying To learn again
tryingtolearnag...@gmail.com wrote:
Hi all,
I´m trying to use write function to save the output of a program (my
constructed H matrix)
randz-matrix(rnorm(100),500,2000)
H-matrix(0,500,2000)
Hi Trying,
Jim already suggested youuse write.table(), which I think is really
what you want. I also wanted to point out that your outer loop is
unnecessary. The following yields identical results and is *much*
faster.
randz - matrix(rnorm(100), 500, 2000)
H - matrix(0, 500, 2000)
H[1, ]
Dear friends,
Is there an easy way of commenting out a block of R code after it has
been written? (I am aware that R-aware editors can insert #
line-by-line while it is being written, but I want to basically block
out chunks of R code in a few strokes.)
This question was asked on this mailing
Hi Ranjan,
To me, this is really a text editors job. Feature-rich editors make
it trivial, for example in Emacs, you can select a region (whatever
size you want) and M-x comment-region automatically comments every
line in that region. Similarly M-x uncomment-region will uncomment
every line.
in vi (vim too?), in edit mode
:a,bs/^/# /g
inserts # at the beginning of lines a through b
On 6-May-12, at 7:41 PM, Joshua Wiley wrote:
Hi Ranjan,
To me, this is really a text editors job. Feature-rich editors make
it trivial, for example in Emacs, you can select a region (whatever
size
Hi Joshua and Don,
Thanks very much!
I guess I can now see why one could do that using the editor, but I
like Joshua's hack suggestion. I did not think about it:-(
Best wishes,
Ranjan
On Sun, 6 May 2012 19:41:01 -0700 Joshua Wiley jwiley.ps...@gmail.com
wrote:
Hi Ranjan,
To me, this is
On May 6, 2012, at 3:56 PM, E Atescelik wrote:
Hi,I had a question about transforming data into data frame object
with two columns. I have data genal2.txt (see attachment) My
data frame called genal2frame has to be in the form:
genal2frame[1:6,]
y mut
1
Yeah, I was unclear about what I mean by uneven vector lengths. I should
say uneven valid vectors instead where valid refers to (1) a field
containing a value that is not NA, for this specific case, and (2) a value
that is compatible with the vector class assigned through colClasses etc.,
and
HI,
Below is third example.
# here we want the full scale from zero to one
color.legend(2,6,4,6.4,legend=c(100% guys,100% girls),
rect.col=color.scale(seq(0,1,by=0.25),c(0.2,1),c(0.2,0.4),c(1,0.4)))
par(mar=c(5,4,4,2))
# use barp to display a multiple histogram
For simplicity sake though, yes I understand the issue and solution, and the
solution using read.table, na.omit, and read.zoo is sound. Thanks Gabor! :)
--
View this message in context:
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Sent from the R
My apologies for the statistical naivete of my question but...
Is there an established method or calulating the statistical power of a
correlation test? And if so is there a method in R for it?
Thank you,
Collin Lynch.
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