Hi, R users,
I have a problem about how to generate random sample interval from a duration.
For example, during a time duration 0-70s, I want to generate a sample which
last 10s.
the sample could be 0-10 or 30-40s or 25-35s etc
How could I do it in R`??
Thanks a lot.
Tammy
__
Philip A. Viton wrote:
>
>
> Is it possible to change the behavior of RGui/RConsole under MS
> Windows so that, if you submit a bunch of commands from a script
> window, when they've finished, focus is given to the Console, and not
> (as now) to the script?
>
>
That's normally the job of
When we ran a regular ANOVA we showed that both mice and raccoons respond
positively to cover. So we decided to use raccoons as a co-variate because
those are mouse predators and their presence per se could explain part of
the variation on mice activity. That is the reason why I'm running this
AN
Hello,
I'd like to ask: going on from Richard McElreath's coursework in which he
says(my paraphrase) basically that the constancy with which a parameter
appears satisfactory with respect to its standard error over a series of
different models is a good measure of its usefulness, where is the "coeft
On Aug 24, 2009, at 12:24 AM, Steven Kang wrote:
Hi David,
I have another question regarding the R statement you have provided
which is:
for (zz in unique(a$xx) ) assign( paste("sub.a", zz, sep="."),
sum(subset(a, xx==zz)$xxx) )
If the xx variables were characters instead of nume
On Aug 23, 2009, at 7:30 AM, rami jiossy wrote:
Hi;
I have a very basic question about reading element from dataframe T
(2 dimentional)
I want to extract element T[1,1] as a string. T[1,1] returns an
element with "names", means header.
this i cannot compare with any other list of str
On Aug 23, 2009, at 11:29 PM, Hemavathi Ramulu wrote:
Hi everyone,
I want to plot some pattern. For example, I have some coding as below,
plot(0:11,type="n")
polygon(c(6,8,10), c(7,3,5),bor=6)
polygon(c(2,4,6), c(5,3,7),bor=6)
polygon(c(6,10,8), c(7,9,11),bor=6)
polygon(c(2,6,4), c(9,7,11),bor
On Aug 23, 2009, at 10:51 PM, Steven Kang wrote:
> David, apreciate for your help.
>
> However, the result is not what I was expecting.
>
> Following on from your code, for example say the input is:
>
>a <- data.frame(x=rep(1:4,2), y=rep(4:7,2), xx=rep(8:11,2),
> xxx=rep(12:15,1))
>
>
On Aug 23, 2009, at 10:51 PM, Steven Kang wrote:
David, apreciate for your help.
However, the result is not what I was expecting.
Following on from your code, for example say the input is:
a <- data.frame(x=rep(1:4,2), y=rep(4:7,2), xx=rep(8:11,2),
xxx=rep(12:15,1))
x y xx x
Hi everyone,
I want to plot some pattern. For example, I have some coding as below,
plot(0:11,type="n")
polygon(c(6,8,10), c(7,3,5),bor=6)
polygon(c(2,4,6), c(5,3,7),bor=6)
polygon(c(6,10,8), c(7,9,11),bor=6)
polygon(c(2,6,4), c(9,7,11),bor=6)
This coding will give me four triangles, but how to g
On Mon, 24 Aug 2009, big permie wrote:
Dear R users,
I have a matrix a and a classification vector b such that
str(a)
num [1:50, 1:80]
and
str(b)
Factor w/ 3 levels "cond1","cond2","cond3"
I'd like to do an anova on all 80 columns and record the F statistic for
each test; I curren
David, apreciate for your help.
However, the result is not what I was expecting.
Following on from your code, for example say the input is:
a <- data.frame(x=rep(1:4,2), y=rep(4:7,2), xx=rep(8:11,2),
xxx=rep(12:15,1))
x y xx xxx
1 1 4 8 12
2 2 5 9 13
3 3
I have a long list of flags with relative values to print out.
If I draw it all on a panel of a (2x2) plot it gets chopped at the bottom.
I wonder whether it is possible to plot it on two columns. Something like:
Flag1 Value1Flag4 Value4
Flag2 Vauel2Flag5 Value5
Flag3 Value3
You might find the article "Computing Thousands of Test Statistics
Simultaneously in R" in
http://stat-computing.org/newsletter/issues/scgn-18-1.pdf helpful.
Hadley
On Sun, Aug 23, 2009 at 7:55 PM, big permie wrote:
> Dear R users,
>
> I have a matrix a and a classification vector b such that
>
>
On Aug 23, 2009, at 10:12 PM, David Winsemius wrote:
On Aug 23, 2009, at 9:56 PM, Steven Kang wrote:
Dear R users,
I am using "subset" function to filter out specific conditions and
would
like to use the value of subsetted argument as a name of an object.
Specifically, from the followin
On Aug 23, 2009, at 9:56 PM, Steven Kang wrote:
Dear R users,
I am using "subset" function to filter out specific conditions and
would
like to use the value of subsetted argument as a name of an object.
Specifically, from the following statement:
a <- subset(dat, dat$x == "A" & dat$xx
Dear R users,
I am using "subset" function to filter out specific conditions and would
like to use the value of subsetted argument as a name of an object.
Specifically, from the following statement:
a <- subset(dat, dat$x == "A" & dat$xx == 1 & dat$xxx == "AB" & dat$y
== "B" & dat$yy == 2)
Ok, now we can talk.
1. covariates: coon
Your model specification put coon sequentially last, effectively testing
the hypothesis that the slope associated with coon, after
adjusting for all the factors, is zero.
My model place coon sequentially first, effectively testing the
hypotheses that the
The usual methods of avoiding loops may provide some speedup (but you've
already done the allocation of the full results vector outside the loop,
which is probably a major saving) - others may have more detailed advice on
that score.
Within the loop there are some speedups possible.
update() wi
Oliver Bandel first.in-berlin.de> writes:
>
> Hello,
>
> I want to read jpeg-files to create 2D-histograms of them.
> Is there a package available for this binary-input issue?
>
> Ciao,
>Oliver
>
>
"In install.packages("rimages") : package ‘rimages’ is not available"
OK, it's "rim
Oliver Bandel first.in-berlin.de> writes:
>
> Hello,
>
> I want to read jpeg-files to create 2D-histograms of them.
> Is there a package available for this binary-input issue?
>
> Ciao,
>Oliver
>
>
Ok, sorry, I now found something in the archive:
the rimage-package might be the right
On Aug 23, 2009, at 4:34 PM, Grzes wrote:
Hi,
My english isn't briliant and my problem is very dificult to
descripe but I
try ;)
My first question is: May I write loop "for" like this or similar -
for (i
in sth : sth[length(sth)], k in sth else : length(sth else) ) -
I'd like
to have
Hello,
I want to read jpeg-files to create 2D-histograms of them.
Is there a package available for this binary-input issue?
Ciao,
Oliver
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting gui
Dear R users,
I have a matrix a and a classification vector b such that
> str(a)
num [1:50, 1:80]
and
> str(b)
Factor w/ 3 levels "cond1","cond2","cond3"
I'd like to do an anova on all 80 columns and record the F statistic for
each test; I currently do this using
f.stat.vec <- numeric(l
Hi gregorio,
I think you can have nested for() without problem, like:
for (i in sth : sth[length(sth)])
{
for (k in A:B)
{
}
}
or you can build conditional for's like:
rangeNegative<-1:10
rangePositive<-1:20
if (rnorm(1)>=0) MYRANGE<-rangePositive
if (rnorm(1)<0)
Fredrik Karlsson wrote:
>
> Dear list,
>
> I have a two character vector with two different values in them (two
> each, that is). Naturally, when I use these vectors as grouping
> factors in a lattice plot, I get four panels.
> Now, one of the possible four combinations will never have data, s
The train() function in the caret package can help automate this
process. Their are 3 package vignettes and a JSS paper with
documentation. See
http://cran.r-project.org/web/packages/caret/index.html
and
www.jstatsoft.org/v28/i05/
If I remember correctly, one of the earlier papers on the lasso
Ruey Tsay's "Analysis of Financial Time Series" is an excellent resource,
along with the associated R package FinTS (
http://lib.stat.cmu.edu/R/CRAN/web/packages/FinTS/). You can also find the
courses that Tsay teaches at U. Chicago on his homepage, such as this recent
course: http://faculty.chica
Hi,
My english isn't briliant and my problem is very dificult to descripe but I
try ;)
My first question is: May I write loop "for" like this or similar - for (i
in sth : sth[length(sth)], k in sth else : length(sth else) ) - I'd like
to have two independent conditions in the same loop "for".
Dear list,
I have a two character vector with two different values in them (two
each, that is). Naturally, when I use these vectors as grouping
factors in a lattice plot, I get four panels.
Now, one of the possible four combinations will never have data, so
one panel will always be empty. So now m
Hi,
On Sun, Aug 23, 2009 at 4:14 PM, Michael Kogan wrote:
> Thanks for all the replies!
>
> Steve: I don't know whether my suggestion is a good one. I'm quite new to
> programming, have absolutely no experience and this was the only one I could
> think of. :-) I'm not sure whether I'm able to put
as.vector(t(mat[7:1,]))
On Aug 23, 2009, at 9:35 PM, David Winsemius wrote:
There is another "matrix" strategy that succeeds, although it is
clearly less economical that the transpose approach:
matrix(mat[7:1, ], ncol=nrow(mat), byrow=TRUE) # will transpose
the matrix
I offer this only
Great ! Then I can wait a couple more days.
Anyway, I do not need or want more than one R version at a time. So my question
is:
How can I avoid having coexisting R versions when I install a new one ?
Thank you,
Maura
-Messaggio originale-
Da: Robert Baer [mailto:rb...@atsu.edu]
Inviato:
On Aug 23, 2009, at 4:14 PM, Michael Kogan wrote:
Thanks for all the replies!
Steve: I don't know whether my suggestion is a good one. I'm quite
new to programming, have absolutely no experience and this was the
only one I could think of. :-) I'm not sure whether I'm able to put
your tip
Thanks for all the replies!
Steve: I don't know whether my suggestion is a good one. I'm quite new
to programming, have absolutely no experience and this was the only one
I could think of. :-) I'm not sure whether I'm able to put your tips
into practice, unfortunately I had no time for much re
FWIW, the R homepage says, "R 2.9.2 Release Candidates will appear August
17-24. Final release is scheduled for 2009-08-24." (Tomorrow?) Maybe a
short upgrade delay is in order? ;-)
On Windows, I routinely install new versions without removing the previous
version. They always seem to coexist ha
There is another "matrix" strategy that succeeds, although it is
clearly less economical that the transpose approach:
matrix(mat[7:1, ], ncol=nrow(mat), byrow=TRUE) # will transpose the
matrix
I offer this only as a reminder that the byrow= parameter is available
when appropriate.
--
The problem with David's proposal is revealed by:
mat[7:1,]
# [,1] [,2] [,3]
# [1,]7 14 21
# [2,]6 13 20
# [3,]5 12 19
# [4,]4 11 18
# [5,]3 10 17
# [6,]29 16
# [7,]18 15
which simply reverses the rows. Then:
c(
On Aug 23, 2009, at 2:53 PM, Bogaso wrote:
No no, I actually want following result :
7, 14, 21, 6, 13, 20, 5, 12, 19,
Ooops. That is what I thought you wanted, but I didn't check very
carefully, did I?
c(apply(mat[7:1,],1,I) )
# the I() function just returns "it
On Sun, Aug 23, 2009 at 8:53 PM, Bogaso wrote:
> No no, I actually want following result :
>
> 7, 14, 21, 6, 13, 20, 5, 12, 19,
How about this?
x = c()
for (i in 7:1) x = c(x,mat[i,])
Guess that would do the trick.
Best,
Michael
--
Michael Knudsen
micknud...@gmail.com
Bogaso wrote:
No no, I actually want following result :
7, 14, 21, 6, 13, 20, 5, 12, 19,
c(t(mat[7:1,])) then.
David Winsemius wrote:
On Aug 23, 2009, at 2:37 PM, Bogaso wrote:
I have suppose a matrix like that
mat <- matrix(1:21, 7)
mat
[,1] [,2] [,3]
No no, I actually want following result :
7, 14, 21, 6, 13, 20, 5, 12, 19,
David Winsemius wrote:
>
>
> On Aug 23, 2009, at 2:37 PM, Bogaso wrote:
>
>>
>> I have suppose a matrix like that
>>
>>> mat <- matrix(1:21, 7)
>>> mat
>> [,1] [,2] [,3]
>> [1,]18
On Aug 23, 2009, at 2:37 PM, Bogaso wrote:
I have suppose a matrix like that
mat <- matrix(1:21, 7)
mat
[,1] [,2] [,3]
[1,]18 15
[2,]29 16
[3,]3 10 17
[4,]4 11 18
[5,]5 12 19
[6,]6 13 20
[7,]7 14 21
From this matrix, I want t
James Fearon wrote:
Hi,
This concerns lrm in the Design package, which I need for the clustered
errors option with panel data.
I have created a variable (using sign()) that has values -1, 0, and 1
(and some NAs). call this variable x3. lrm does not like
t = lrm(y ~ x1 + x2 + I(x3==-1) +
I have suppose a matrix like that
> mat <- matrix(1:21, 7)
> mat
[,1] [,2] [,3]
[1,]18 15
[2,]29 16
[3,]3 10 17
[4,]4 11 18
[5,]5 12 19
[6,]6 13 20
[7,]7 14 21
>From this matrix, I want to create a vector like tha :
c(mat[7,], mat
Looks like nobody answered so far:
Kelvin Lam wrote:
Hi group,
I have the following error code after submitting library(wordnet) in a
standalone pc. rJava is already in place.
Please read the posting guide and tell us:
- Which version of R?
- Which version of wordnet?
- Which version of r
Renaud Gaujoux wrote:
Hi,
I'm trying to install Chipster (for microarray analysis:
http://chipster.csc.fi/), which expressly relies on R 2.6.1 (for now).
So I'd like to install automatically (i.e. using a 'install.packages' like
function) the last version of a package compatible with the r
Since it looks like nobody answered so far:
Your code is not reproducible, we do not have rfc, y, zVals nor NoCols.
You could also try to place a screenshot somewhere on a webpage
including the info about the settings of the corresponding viewer.
Best,
Uwe Ligges
Andreas Fischlin wrote:
Looks like nobody answered so far.
If you want help: It is a good idea to say which package you are talking
about. In a clean R session I get:
> specprop
Error: object 'specprop' not found
> spec
Error: object 'spec' not found
hence no idea which functions from which package we are talking a
Greg Hirson wrote:
I have noticed an interesting behavior when comparing how the base
plot() function deals with a data argument that downloads data from the
internet vs. how xyplot() in lattice performs the same task.
The goal is to plot hourly temperature data. The data is downloaded and
Looks like nobody answered so far?
If I understood it correctly, you want something like:
x <- 1:36
plot(x, log(x, 1.1), xlab="Number of months", ylab="Visits(1000)",
main="webpage visits")
helper.lines <- function(x, y, lty=2, col="red", text=TRUE){
segments(par("usr")[1], y, x, y, col
Han Chin Chan wrote:
Hi,
I am trying to import data directly from an excel spreadsheet using the RODBC package. I am getting the following error messages, wondering if anyone can help me with it?
connection = odbcConnectExcel('D:\\R files\\TestData.xls')
tables = sqlTables(connection)
tab
On Sun, 23 Aug 2009, Charles C. Berry wrote:
On Sat, 22 Aug 2009, Noah Silverman wrote:
And, of course that leads me to another question...
With svm {e1071} I can ask the predict function to give me probabilities
with lrm {Desigh} I can ask the predict function to give me probabilities
On Sat, 22 Aug 2009, Noah Silverman wrote:
And, of course that leads me to another question...
With svm {e1071} I can ask the predict function to give me probabilities
with lrm {Desigh} I can ask the predict function to give me probabilities
I can't see how to do this with clogit.
Would some
Hi,
This concerns lrm in the Design package, which I need for the clustered
errors option with panel data.
I have created a variable (using sign()) that has values -1, 0, and 1
(and some NAs). call this variable x3. lrm does not like
t = lrm(y ~ x1 + x2 + I(x3==-1) + I(x3==1), data=data,x
Hi all,
I am looking for study resources for (financial) time series? Hopefully I
could find video lectures then it will reduce the learning curve.
Thanks a lot!
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https:/
On Aug 23, 2009, at 11:28 AM, mau...@alice.it wrote:
I am still running 2.9.0 and came across a package that was built
with 2.9.1. I got a warning upon loading the package.
I tried to launch a function from such a package. It seems to hang
up. I can't believe it takes forever.
I am resolved t
I am still running 2.9.0 and came across a package that was built with 2.9.1. I
got a warning upon loading the package.
I tried to launch a function from such a package. It seems to hang up. I can't
believe it takes forever.
I am resolved to upgrade my R version to the newest one. But on a Window
On Aug 23, 2009, at 10:14 AM, Brittany Hall wrote:
Hello,
I am fairly new to R and having a problem with the lme command. I
have searched on forums, read the Fox 2002 chapter, and R help, but
the suggestions that I have tried have not helped me.
My data file is called Acsdata.
This is my
Dear all,
I am trying to run the dudi functions in R (ade4 package) to run an
ecological analysis. In particular it is a traits analysis. I am having
problems at understanding how to make the table to be read prperly by the
software. Example is given in the link below
http://pbil.univ-lyon1.fr/AD
Is it possible to change the behavior of RGui/RConsole under MS
Windows so that, if you submit a bunch of commands from a script
window, when they've finished, focus is given to the Console, and not
(as now) to the script?
Philip A. Viton
City Planning, Ohio State Un
Hello,
I am fairly new to R and having a problem with the lme command. I have searched
on forums, read the Fox 2002 chapter, and R help, but the suggestions that I
have tried have not helped me.
My data file is called Acsdata.
This is my script:
Acsdata.1 <- lme(Acsdata$gsi ~ Acsdata$asi
Data Analytics Corp. wrote:
>
> Hi,
>
> In R base graphics, the function mtext can be used to add text to the
> margins of a plot. This is very useful for adding notes (such as data
> source, sample size, etc.) to the bottom of a graph. How can such notes
> be added to the bottom of a gra
__
R-help@r-project.org mailing list
https://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.
On Aug 22, 2009, at 7:16 PM, Peng Yu wrote:
Hi,
http://cran.r-project.org/doc/Rnews/Rnews_2003-3.pdf
There is information on how to debug R. But since it is fairly old, I
am wondering what the currently best way for debugging R script.
Regards,
Peng
There are various tools available that a
On Aug 22, 2009, at 7:06 PM, Peng Yu wrote:
Hi,
I see the following package that can help me call perl from R. But the
webpage is about 3 years old. I am wondering what the latest package
that can help calling perl from R.
http://www.omegahat.org/RSPerl/
Regards,
Peng
RSPerl provides the ab
On 8/23/2009 9:58 AM, David Winsemius wrote:
> I still have problems with this statement. As I understand R, this
should be impossible. I have looked at both you postings and neither of
them clarify the issues. How can you have blanks or spaces in an R
numeric vector?
Just because I search numeri
On Aug 23, 2009, at 7:39 AM, rami jiossy wrote:
Hi;
I have a very basic question about reading element from dataframe T
(2 dimentional)
I want to extract element T[1,1] as a string. T[1,1] returns an
element with "names", means header.
this i cannot compare with any other list of str
Hi;
I have a very basic question about reading element from dataframe T (2
dimentional)
I want to extract element T[1,1] as a string. T[1,1] returns an element with
"names", means header.
this i cannot compare with any other list of strings.
how can i fix that?
Thanks
Rami
___
Hi;
I have a very basic question about reading element from dataframe T (2
dimentional)
I want to extract element T[1,1] as a string. T[1,1] returns an element with
"names", means header.
this i cannot compare with any other list of strings.
how can i fix that?
Thanks
Rami
__
On Aug 23, 2009, at 2:47 AM, Alexander Shenkin wrote:
On 8/21/2009 3:04 PM, David Winsemius wrote:
On Aug 21, 2009, at 3:41 PM, Alexander Shenkin wrote:
Thanks everyone for their replies, both on- and off-list. I should
clarify, since I left out some important information. My original
dat
Since I have been clueless about "gains chart" in Google and found your
question message within the first two pages of output, I have the
impression that not very many other readers hearded about it. Reading
fruther on shows that it might be very related to ROC curves and AUC
calculations, hen
The posting guide asks you to:
"PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code."
Please also do the latter.
Best,
Uwe Ligges
Bin1aya wrote:
Dear All,
I am trying for indices calculation in Rc
nsl is not available on all platforms since it is located in
".../Rsources/src/library/utils/R/unix"
Please make use of OS functionality in order to do hostname lookup.
Best,
Uwe Ligges
Janko Thyson wrote:
Dear list,
today I stumbled across the function „nsl()” for the first time in order t
Hi,
In R base graphics, the function mtext can be used to add text to the
margins of a plot. This is very useful for adding notes (such as data
source, sample size, etc.) to the bottom of a graph. How can such notes
be added to the bottom of a graph when using ggplot2?
Thanks,
Walt
--
What does the command
c:\progra~1\R\R-2.9.1\bin\Rgui --vanilla
do?
At first I thought that I could run it from R. But then it did not work.
I'm using a mac, and I don't know how access MSDOS in a mac. I actually
installed R on the pc and tried to run the command from MSDOS and it also
didn't wor
sendona essile wrote:
I want to draw two density functions on the same graph. One of the densities is
produced by density() and the other one is produced by logspline() . I want to
show one of them by solid line and the other one by dashed line, but both of
them on one graph.
Sorry if this is
my email
assaed...@yahoo.com
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R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and prov
Its not being stored as an integer. Its being stored as a double.
If it were stored as an integer you would not get the e:
> as.character(10L)
[1] "10"
> as.character(as.integer(10))
[1] "10"
On Sat, Aug 22, 2009 at 7:13 PM, Dajiang J. Liu wrote:
> Dear all,I wan
I want to draw two density functions on the same graph. One of the densities is
produced by density() and the other one is produced by logspline() . I want to
show one of them by solid line and the other one by dashed line, but both of
them on one graph.
Sorry if this is plane and trivial, I don
On Fri, 2009-08-21 at 18:27 -0400, Kendra Walker wrote:
>
> I am trying to figure out how to apply a loglog link to a binomial
> model (dichotomous response variable with far more zeros than ones).
> I am aware that there are several relevant posts on this list, but I
> am afraid I need a l
On Fri, 2009-08-21 at 20:59 -0700, Bin1aya wrote:
> Dear All,
>
> I do not know how to perform Mann kendall test with climate data. Using
> Rclimdex i have got trends of temperature and precipitation. Now I would
> like to know how significant is trend at 95% level of significance. So
> please sug
On Sat, 22-Aug-2009 at 10:00PM -0500, Peng Yu wrote:
|> Hi,
|>
|> It is easy to understand the types vector and frame.
Types of what? Class of object? Doesn't seem likely. What do you
mean by frame? It's a function, and a vector can be a factor,
numeric, logical or character (and probably a
Peng Yu schreef:
Hi,
It is easy to understand the types vector and frame.
But I am wondering why the type factor is designed in R. What is the
advantage of factor compare with other data types in R? Can somebody
give an example in which case the type factor is much better than
other data types?
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