On 7/10/07, Felipe Carrillo [EMAIL PROTECTED] wrote:
Date Fo Co6/27/2007 57.1 13.96/28/2007 57.7 14.3
6/29/2007 57.8 14.36/30/2007 57 13.97/1/2007 57.1 13.9
7/2/2007 57.2 14.07/3/2007 57.3 14.17/4/2007 57.6 14.2
7/5/2007 58 14.4
Hi Sir
There is no Window Binary versin of package permtest.Please provide
information in this regard.
Thank you
--
AMINA SHAHZADI
Department of Statistics
GC University Lahore, Pakistan.
Email:
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[[alternative HTML version deleted]]
On Wed, 11 Jul 2007, amna khan wrote:
Hi Sir
There is no Window Binary versin of package permtest.Please provide
information in this regard.
See
http://cran.r-project.org/bin/windows/contrib/2.5/check/permtest-check.log
[Sending this once was quite sufficient.]
--
Brian D. Ripley,
Michael,
The plot method for SpatialLinesDataFrame objects resides in package sp,
and questions regarding it are easier noticed on the r-sig-geo mailing
list.
The reason why they are plotted with aspect ratio 1 is that they are
assumed to be spatial (geographical) data, and assume that 1 m
Duncan Murdoch and I have been working on Vista compatibility.
The first build of R-2.5.1-win32.exe was built with a version of the
installer that had some compatibility issues, and it has been rebuilt
under the latest version. What now happens is that if you want to install
R in an
Hi all,
I'm wondering whether anyone has installed R on Mac OS X leopard with
success. I downloaded the latest version, but couldn't have it installed.
Any idea as to how I get around the problem? Thanks!
Sincerely,
Helin
--
Helin (Colin) Gai
Class of 2009, Duke University
Box 96332
Durham, NC
Jose,
The Gehan-Breslow test provides a generalization of the Kruskal-Wallis test for
censored data. As an alternative, try using survdiff with rho=1. This method
uses weights w(ti) = S(ti) (where S is the Kaplan-Meier estimate of survival)
which yields Fleming and Harrington's version of
hi there,
i an beginner of R. some one have sent me a file (extension is .Rdata). i have
installed R in my computer and i just double clicked the data. then it
automatically opened R programme and displayed that [previously saved workspace
restored]. the following message was displayed.
Thank you very much for your reply. I am afraid I have no idea what is wrong
with the pgpg function. The parameters are generated from pre-fitted GPD
distribution. 1.544 is the location parameter, 0.4373 is the scale parameter
and -0.2398 is the shape parameter.
Cound you please give me some
On Wed, 11 Jul 2007, Edzer J. Pebesma wrote:
Michael,
The plot method for SpatialLinesDataFrame objects resides in package sp,
and questions regarding it are easier noticed on the r-sig-geo mailing
list.
The reason why they are plotted with aspect ratio 1 is that they are
assumed to be
Indeed! And, apropos of the expression, to be Ripleyed (and so be
condemned to eating cookies for a long, long time), what about being
Billasted?
BestR,
Mark.
Simon Blomberg-4 wrote:
I second the nomination!
Simon.
On Tue, 2007-07-10 at 10:02 -0600, Greg Snow wrote:
I nominate the
Dear R-Users,
I have a question concerning mixed models in R.
The strata of my model are the counties of Germany. The differencies
between these counties should be modelled as realizations of a normally
distributed random variable X.
Moreover, the model contains a 0/1 variable A that enters as
Hi Steve,
I am new here - enjoying the power of R compared to SPSS.
Looking for sets of tips and tricks for people with old SPSS habits.
In particular, would like to know an easy way to set variable labels
across a dataset and to set value labels for sets of variables.
Maybe you should take
Hallo R experts,
I got a question concerning the .libPaths(). if I do the command .libPaths()
than the result is /usr/lib/R/library. This is the default folder. I now want
to change this one into /home/csc/usr/lib/R/library. I thought it would work
with the command
Hi,
When I than do the command .libPaths() the result is:
/usr/lib/R/library /home/csc/usr/lib/R/library. But if I start R
the next time the result of the command .libPaths() is again just
/usr/lib/R/library.
From libPaths help page :
,
| The library search path is initialized at
Corinna:
I got a question concerning the .libPaths(). if I do the command
.libPaths() than the result is /usr/lib/R/library. This is the default
folder. I now want to change this one into /home/csc/usr/lib/R/library.
I thought it would work with the command
Dear R users,
I have a rather knotty analysis problem and I was hoping that
someone on this list would be able to help. I was advised to try this list
by a colleague who uses R but it is a statistical inquiry not about how to
use R.
In brief I have a 3x2 anova, 2 tasks under 3
Dear list
I am new here - enjoying the power of R compared to SPSS.
Looking for sets of tips and tricks for people with old SPSS habits.
In particular, would like to know an easy way to set variable labels
across a dataset and to set value labels for sets of variables.
Grateful for any help,
Anderson, Mary-Jane wrote:
Dear R users,
I have a rather knotty analysis problem and I was hoping that
someone on this list would be able to help. I was advised to try this list
by a colleague who uses R but it is a statistical inquiry not about how to
use R.
In brief I have a 3x2
dear r experts:
I would appreciate advice on how to get the p-value from the object 'sr'
created with the function survreg() as given below.
vlad
sr-survreg(s~groups, dist=gaussian)
Coefficients:
(Intercept) groups
-0.02138485 0.03868351
Scale= 0.01789372
Loglik(model)= 31.1
Hi Mary,
it sounds like you have a split-plot design, or more gruesomely, a
split-subject design.
The model that I infer from your description of the design can be fit
using the lme() function of the nlme() package, along the lines of a
similar analysis documented in section 1.6 of Pinheiro
On Fri, 6 Jul 2007, Peter Dalgaard wrote:
Leo wrote:
On 06/07/2007, Prof Brian Ripley wrote:
On Fri, 6 Jul 2007, Leo wrote:
I have set R_LIBS=~/R_lib as I don't have root access.
The following message shown up every time after installing a package:
..
The downloaded packages are
On 7/11/07, Helin Gai [EMAIL PROTECTED] wrote:
Hi all,
I'm wondering whether anyone has installed R on Mac OS X leopard with
success. I downloaded the latest version, but couldn't have it installed.
Any idea as to how I get around the problem? Thanks!
Simon Urbanek has comments about R for
dear r experts:
It seems my message got spam filtered, another try:
i would appreciate advice on how to get the p-value from the object 'sr'
created with the function survreg() as given below.
vlad
sr-survreg(s~groups, dist=gaussian)
Coefficients:
(Intercept) groups
-0.02138485 0.03868351
Dear R Users ,
As a beginner in QP, I'm trying to solve a Support Vector Machine problem by a
QP. In particulare I am using the quadprog package.
My questions are here:
1- In the document for the package (The quadprog Package), the inequality
constraint is
Hi, I would like to use the following codes to plot the CDF for pareto
distribution. Before doing this, I have plot the emperical one.
x - seq(1.6, 3, 0.1)
lines(x,pgpd(x, 1.544,0.4477557,), col=red)
Could anyone give me some advice whether the above codes are correct?
Many thanks.
--
View
Antigen for Exchange found instruction.zip__instruction.doc
.pif matching FILE FILTER= *.pif file
Hello,
I have some trouble in achieving the desired parametrisation
for the weka classifier functions, using the package RWeka.
The problem is, that the functions
result=classifier(formula, data, subset, na.action, control =
Weka_control(mycontrol))
do not seem to be manipulated by
Hi
If you enter the command ls()you will see a list of names that have
come with the .Rdata file you double-clicked.
If you enter one of these names at the command prompt you will see the
data.
So, for example if you have some data called mydata:
ls()
[1] mydata repos
mydata
[,1]
Hello Peter,
thanks for your help. I'm quite sure that I specified the right model.
Factor C is indeed nested within factor A. I think you were confused by
the numbering of C (1..11), and it is easier to understand when I code
it as you suggested (1,2,3 within each level of A, as in mydata1 [see
On Wed, 11 Jul 2007 [EMAIL PROTECTED] wrote:
The problem is, that the functions
result=classifier(formula, data, subset, na.action, control =
Weka_control(mycontrol))
do not seem to be manipulated by the mycontrol- arguments
Yes, they are...not all parameter changes have always an
Steve Powell wrote:
Dear list
I am new here - enjoying the power of R compared to SPSS.
Looking for sets of tips and tricks for people with old SPSS habits.
In particular, would like to know an easy way to set variable labels
across a dataset and to set value labels for sets of variables.
With version 8 of acrobat reader, it is now possible to have 3D in PDf
documents.
Does it exist already an R package who manage to produce 3D plots which can be
saved as interactive 3D graphs in a PDF file?
Best Regards
Bruno Cavestro
--
Hi, I am trying to learn some basic statistics stuff but I cannot find any
elementary statistics exercises using R language. Using RKward would be even
better...
I need that in analysing sociological data, obtained through questionnairres -
findind corelations between variables, relations between
I don't know anything about RKward, but there are many, many
tutorials, guides and other documents written for people learning R
available online.
Try the introduction to R at:
http://www.r-project.org/
under manuals, or some of the many fine contributions at:
Face the music and buy the book: _Introductory Statistics with R_ by Peter
Dalgaard. It's perfect for what you need. It's clear and concise and will
teach you statistics AND R as painlessly as such a thing can be. It's
inexpensive and you can get it on Amazon.com and every other major
Le 07-07-11 à 07:56, livia a écrit :
Hi, I would like to use the following codes to plot the CDF for pareto
distribution. Before doing this, I have plot the emperical one.
x - seq(1.6, 3, 0.1)
lines(x,pgpd(x, 1.544,0.4477557,), col=red)
Could anyone give me some advice whether the above
hi,
thanks for the suggestion, however i am struggling to see the data, here is
load(C://R//species.Rdata) ls()[1] abc abc1 abc2
example example1.14 generalislast.warningwhen i wrote
ls(), then i saw the the files names I created before in R. there was no
Hi, thank you very much for your reply. The function pgpd() is from the
package POT, and the 1.544 is the location parameter, 0.4477557 is the scale
parameter and -0.50113 is the shape parameter, which can be both negtive or
positive.
Vincent Goulet wrote:
Le 07-07-11 à 07:56, livia a écrit
str(survreg(s~groups, dist=gaussian))
is probably a good place to start.
Hadley
On 7/11/07, Vlado Sremac [EMAIL PROTECTED] wrote:
dear r experts:
It seems my message got spam filtered, another try:
i would appreciate advice on how to get the p-value from the object 'sr'
created with the
Hi All,
We are planning to run an experiment, where samples
will be taken at different time points (say, 0, 4, 8,
16, 24). If I am interested in the effect size of 1.5
for a reasonably large samples (say 500), what will be
the power? Is it a good idea to use F-test (one-way
ANOVA) as my test
On 7/11/2007 9:18 AM, Bruno C. wrote:
With version 8 of acrobat reader, it is now possible to have 3D in PDf
documents.
Does it exist already an R package who manage to produce 3D plots which can
be saved as interactive 3D graphs in a PDF file?
No, not as far as I know. If you want to help
Billasted sounds too brutal. How about Billeted, as in what one
does to one's breshly-caught bish?
Andrew
On Wed, Jul 11, 2007 at 01:48:10AM -0700, Mark Difford wrote:
Indeed! And, apropos of the expression, to be Ripleyed (and so be
condemned to eating cookies for a long, long time),
livia wrote:
Hello all,
I would like to plot the emperical CDF, normal CDF and pareto CDF in the
same graph and I amusing the following codes. z is a vector and I just
need the part when z between 1.6 and 3.
plot(ecdf(z), do.points=FALSE, verticals=TRUE,
Try also:
pchisq(summary(sr)$chi, degrees_freedom, lower=FALSE)
*You need know your degrees of freedom
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40 S 49° 16' 22 O
On 11/07/07, Vlado Sremac [EMAIL PROTECTED] wrote:
dear r experts:
It seems my message got spam filtered, another
pHello,/ppI am a new R-user and would like to use survfit for interval
censored data.
Whenever I try I get an error message that states I can only use survfit for
right censored or
counting process data. I was wondering if anyone knows if there is an
additional package available
that can
Actually, in this case, looking at the code for:
survival:::print.survreg
would be better, as the p value is calculate there, rather than being
part of the survreg object. As with many R functions, the p value is
calculated in the print method for the object.
In this case, it is a pretty
On 7/11/07, Marc Schwartz [EMAIL PROTECTED] wrote:
Actually, in this case, looking at the code for:
survival:::print.survreg
would be better, as the p value is calculate there, rather than being
part of the survreg object. As with many R functions, the p value is
calculated in the print
Le 07-07-11 à 10:01, livia a écrit :
Hi, thank you very much for your reply. The function pgpd() is from
the
package POT, and the 1.544 is the location parameter, 0.4477557 is
the scale
parameter and -0.50113 is the shape parameter, which can be both
negtive or
positive.
The
This does not answer exactly to your question, anyway..:
If you are planning to use latex, the package movie15 allows to include
media files in your document (to be processed via pdflatex)
vito
Bruno C. wrote:
With version 8 of acrobat reader, it is now possible to have 3D in PDf
Hello,
I have 2 problems with R CMD SHLIB. The first problem didn't resolve,
it just morphed into the new problem. I first have to admit that even
though I've used R CMD SHLIB for a few years, I don't understand C
compiling.
The problem arose after our linux guy upgraded from Mandriva 2005
I'm very new to R, trying to learn it. I started with R 2.4, but I have
since upgraded to 2.5.0, on WindowsXP. I understand that 2.5.1 is now
available.
Last night in the course of things I loaded libraries coin and
survival. I received warning messages that they had been built under
version
As a fellow beginner, I also found Handbook of Statistical Analyses
Using R, by Brian Everitt, to be a very useful book. There is an
accompanying R package, HSAUR.
Also Using R for Introductory Statistics, by John Verzani. There is an
accompanying R package, UsingR.
Christopher W. Ryan, MD
Carsten Jaeger wrote:
Hello Peter,
thanks for your help. I'm quite sure that I specified the right model.
Factor C is indeed nested within factor A. I think you were confused by
the numbering of C (1..11), and it is easier to understand when I code
it as you suggested (1,2,3 within each
Christopher W. Ryan wrote:
As a fellow beginner, I also found Handbook of Statistical Analyses
Using R, by Brian Everitt, to be a very useful book. There is an
accompanying R package, HSAUR.
Also Using R for Introductory Statistics, by John Verzani. There is an
accompanying R package,
On Wed, 2007-07-11 at 16:41 +0200, hadley wickham wrote:
On 7/11/07, Marc Schwartz [EMAIL PROTECTED] wrote:
Actually, in this case, looking at the code for:
survival:::print.survreg
would be better, as the p value is calculate there, rather than being
part of the survreg object. As
Thanks vito
I was aware of movie15 but the point is how to get a U3D or VRLM file out of R
:/
I don't know those two standards, nor I know the usual format for R 3D plots ...
And unfortunately I am a bit in a rush so no way, right now, to do some reverse
engineering about plot file format in
Dear All:
I am stuck with this issue:
I have a button on a TK window, once click it, it pops up a individual
plot device:
individual_plot - function() {
tkconfigure(overlay.button, state=normal)
options(locatorBell = FALSE)
plotfuntype()
trellis.focus(panel, 1,
here is one way of doing it using 'ave':
dat - read.table(textConnection(mc yrret
+ 32902.233 01/01/1995 0.426
+ 15793.691 01/01/1995 0.024
+ 2375.868 01/01/1995 0.660
+ 54586.558 01/01/1996 0.497
+ 10674.900 01/01/1996 0.405
+859.656 01/01/1996 -0.033
+
The built in power functions are for the fairly straight forward
situations. Yours does not appear to fit into any of those. You need
to think through your problem a bit more before starting to think about
power.
What do you mean by effect size of 1.5 (is that 1.5 standard deviations?
Or raw
Sandra,
As far as I am aware, you will have to use a parametric model (survreg) if your
survival times are interval-censored.
Regards,
-Cody
Cody Hamilton
Edwards Lifesciences
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sandra Ellis
Sent:
Hi folks,
I'm having some trouble understanding the intricacies of panel
functions. I wish to create three side-by-side graphs, each with
different data-- so far, so good: I rbind() the data, add a column of
subscripts as a conditioning variable, load up the lattice package,
specify either a
On 7/11/07, Jonathan Williams [EMAIL PROTECTED] wrote:
Hi folks,
I'm having some trouble understanding the intricacies of panel
functions. I wish to create three side-by-side graphs, each with
different data-- so far, so good: I rbind() the data, add a column of
subscripts as a conditioning
Perhaps I should clarify that when I use sample code from the lp help
function, I can paste it and run it in my windows-based R with no
problems. My question is why the same code won't work on a linux
system.
Thanks,
Byran Smucker
On Wed, 11 Jul 2007 12:00:09 +0200 r-help@stat.math.ethz.ch
Deepayan,
Thanks for the clarification. The rectangles are completely external
to the panel data, and correspond to 90% confidence intervals built
from training data, to be overlaid on these graphs of the test data.
- Jonathan
At 10:04 AM 7/11/2007, you wrote:
On 7/11/07, Jonathan Williams
Deepayan et. al.:
A question/comment: I have usually found that the subscripts argument is
what I need when passing *external* information into the panel function, for
example, when I wish to add results from a fit done external to the trellis
call. Fits[subscripts] gives me the fits (or
Hi sir
Sir I am not understanding how to load permtest on R console for windows?
Regards
--
AMINA SHAHZADI
Department of Statistics
GC University Lahore, Pakistan.
Email:
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[[alternative HTML version deleted]]
Hi all,
So I think I have seen some similar questions to mine when I searched
the archives, but have not seen any concrete answers and was
wondering if any one could help.
I have been trying to use R's aov() function to analyze my data. I
have a 3 x 4 x 2 repeated measures design. All of
On 7/11/07, Bert Gunter [EMAIL PROTECTED] wrote:
Deepayan et. al.:
A question/comment: I have usually found that the subscripts argument is
what I need when passing *external* information into the panel function, for
example, when I wish to add results from a fit done external to the trellis
On 7/11/07, Jonathan Williams [EMAIL PROTECTED] wrote:
Deepayan,
Thanks for the clarification. The rectangles are completely external
to the panel data, and correspond to 90% confidence intervals built
from training data, to be overlaid on these graphs of the test data.
Right. So if you
[I tried to send this messages two days ago, but I guess I mistyped the To:
address...]
Why system is different in Linux and Windows? Both in R 2.4.1, but in
Windows there is an option:
system(something, wait = FALSE)
while on Linux (Fedora Core 4), there is no such option?
Alberto
A question/comment: I have usually found that the subscripts argument is
what I need when passing *external* information into the panel function, for
example, when I wish to add results from a fit done external to the trellis
call. Fits[subscripts] gives me the fits (or whatever) I want to
On Wed, 2007-07-11 at 16:16 -0200, Alberto Monteiro wrote:
[I tried to send this messages two days ago, but I guess I mistyped the To:
address...]
Why system is different in Linux and Windows? Both in R 2.4.1, but in
Windows there is an option:
system(something, wait = FALSE)
while
Dear List,
having searched the help and archives, I have the impression that
there is no automatic model selection procedure implemented in R that
includes/excludes predictors in logistic regression models based on
LRT P-values. Is that true, or is someone aware of an appropriate
function
Check out the stepAIC function in MASS package. This is a nice tool, where
you can actually implement any penalty even though the function's name has
AIC in it because it is the default. Although this doesn't do an LRT test
based variable selection, you can sort of approximate it by using a
Hi: I am trying to migrate from Systat to R but I am facing my first challenge.
While I easily can get weekly co-variance for my data, I can't seem to
acomplish this with R ( I can't figure out how is done) If interested in
looking a sample of my data, please check the Excel attachment. In
I hope this is enough information to determine the problem. Thanks in
advance for any help.
Configure goes ok (I think)
./configure --prefix=$HOME --without-iconv
R is now configured for sparc-sun-solaris2.9
Source directory: .
Installation directory:/home/dpowers
C
On 11-Jul-07 18:28:19, Marc Schwartz wrote:
On Wed, 2007-07-11 at 16:16 -0200, Alberto Monteiro wrote:
[I tried to send this messages two days ago, but I guess I mistyped
the To:
address...]
Why system is different in Linux and Windows? Both in R 2.4.1, but
in
Windows there is an
Dan Powers wrote:
I hope this is enough information to determine the problem. Thanks in
advance for any help.
Configure goes ok (I think)
./configure --prefix=$HOME --without-iconv
R is now configured for sparc-sun-solaris2.9
Source directory: .
Installation directory:
On Wed, 2007-07-11 at 22:32 +0100, [EMAIL PROTECTED] wrote:
On 11-Jul-07 18:28:19, Marc Schwartz wrote:
On Wed, 2007-07-11 at 16:16 -0200, Alberto Monteiro wrote:
[I tried to send this messages two days ago, but I guess I mistyped
the To:
address...]
Why system is different in Linux
On 7/11/07, hadley wickham [EMAIL PROTECTED] wrote:
A question/comment: I have usually found that the subscripts argument is
what I need when passing *external* information into the panel function, for
example, when I wish to add results from a fit done external to the trellis
call.
Mark Difford wrote:
Indeed! And, apropos of the expression, to be Ripleyed (and so be
condemned to eating cookies for a long, long time), what about being
Billasted?
BestR,
Mark.
Simon Blomberg-4 wrote:
I second the nomination!
Simon.
On Tue, 2007-07-10 at 10:02 -0600, Greg Snow
Dear all,
I am trying to read a - almost for me - small map on R using rgdal package.
This image have dimension of 1701x1401 and are stored on native ArcGis GRID
format. When I see the files sizes, it is less then one megabyte. But
unfortunately when I try read using readGDAL function it
Not that Trellis/lattice was entirely easy to learn at first. :)
I've been playing around with ggplot2 and there is a plot()-like wrapper for
building a quick plot [incidentally, called qplot()], but otherwise it's my
understanding that you superpose elements (incrementally) to build up to the
In the Trellis approach, another way (I like) to deal with multiple pieces of
external data sources is to 'attach' them to panel functions through lexical
closures. For instance...
rectInfo -
list(matrix(runif(4), 2, 2),
matrix(runif(4), 2, 2),
matrix(runif(4), 2, 2))
On 7/11/07, Stephen Tucker [EMAIL PROTECTED] wrote:
In the Trellis approach, another way (I like) to deal with multiple pieces of
external data sources is to 'attach' them to panel functions through lexical
closures. For instance...
rectInfo -
list(matrix(runif(4), 2, 2),
Your approach of using closures is cleaner than that
given below but just for comparison in:
http://tolstoy.newcastle.edu.au/R/devel/06/03/4476.html
there is a createWrapper function which creates a new function based
on the function passed as its first argument by using the components
of the
Regarding this, I meant to imply that lattice was similarly flexible in the
sense of handing multiple data sets [IMHO], in regards to other aspects of
the 'grammar of graphics' I have no qualifications to justify comment. But
the idea and intuitiveness of graph construction in ggplot2 is very
On 7/12/07, Deepayan Sarkar [EMAIL PROTECTED] wrote:
On 7/11/07, hadley wickham [EMAIL PROTECTED] wrote:
A question/comment: I have usually found that the subscripts argument is
what I need when passing *external* information into the panel function,
for
example, when I wish to add
On 7/12/07, Stephen Tucker [EMAIL PROTECTED] wrote:
Not that Trellis/lattice was entirely easy to learn at first. :)
I've been playing around with ggplot2 and there is a plot()-like wrapper for
building a quick plot [incidentally, called qplot()], but otherwise it's my
understanding that you
On 7/12/07, Stephen Tucker [EMAIL PROTECTED] wrote:
In the Trellis approach, another way (I like) to deal with multiple pieces of
external data sources is to 'attach' them to panel functions through lexical
closures. For instance...
rectInfo -
list(matrix(runif(4), 2, 2),
I need to perform the Exact Wilcoxon Mann-Whitney on a subset of my database.
Assuming that IPPO is my data frame and IPPOBIS is the subset my variable still
have 3 different levels and the function wilcox_test (package coin)
does not accept it.
I do not know how to overcome this problem.
ippo -
You are asked for a C99 compiler and configure normally finds one: mixing
declarations and code is valid C99.
Unless something has been done with environment variables (e.g. in
config.site) this gcc is very old. configure should come up with
'gcc -std=gnu99'. Re-ordering the code will help
I'm an R newbie but recently discovered the ggplot2 and reshape
packages which seem incredibly useful and much easier to use for a
beginner. Using the data from the IMDB, I'm trying to see how the
average movie rating varies by year. Here is what my data looks like:
ratings -
You have three levels of factor 'ippo' and data on two. That is not a
two-sample problem, as the error message says. Try
IPPOBIS$ippo - IPPOBIS$ippo[drop=TRUE]
And please use an informative subject line (see the posting guide).
On Thu, 12 Jul 2007, Cressoni, Massimo (NIH/NHLBI) [F] wrote:
I
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