Oopsw! Sorry, Greg of course! Thanks!
[Ricardo Rodriguez] Your XEN ICT Team wrote:
Greg Snow wrote:
Wade,
What type of GUI do you want?
Do you want a full GUI that the user runs to do everything (that uses
R as the computational engine)? Look at R commander, JGR, and the R
plugin for Excel
Greg Snow wrote:
Wade,
What type of GUI do you want?
Do you want a full GUI that the user runs to do everything (that uses R as the
computational engine)? Look at R commander, JGR, and the R plugin for Excel as
possible examples.
Hi Wade,
I am trying to introduce some users to R without m
Hi R People:
I am looking at the Braun/Murdoch book, " A First Course in
Statistical Programming in R", and I have a question about a function
there. It's on page 52, Example 4.5; the sieve of Erastosthenes.
There is a line:
primes <- c()
Is there a difference between using that and
primes <- N
On Tue, 7 Oct 2008, pejpm wrote:
I will preface this message by saying that I am not an R developer and no
very little about R...but here is my situation:
One of my users has developed a model for analysing commodity prices. At the
moment when he runs this model on his daily data set it takes
Hello,
I'd appreciate a suggestion on how to construct plots (barplots?) that use
means on the Y axis instead of density/count. I'd also like to use groups
and plot error or confidence interval bars on these graphs. I know this is a
read the manual situation. I'd appreciate help with what to read,
On 10/7/08, Rolf Turner <[EMAIL PROTECTED]> wrote:
>
> I am trying to do a histogram lattice plot and I would like the
> histogram to be filled with a different colour in each panel.
>
> Note: I want every bar in each histogram to be the same colour,
> but that there should be different colour
Hello,
I am trying to optimise a nonlinear model to derive 'best-fit' parameter
esimates using the genoud function. I have been using the genetic algorithm
- gafit - in order to do this, but I am getting parameter estimates that do
not always reach the global minimum. I am very keen to apply genou
Ajay ohri wrote:
the purpose of validating indirect measures such as ROC curves.
Biggest Purpose- It is useful while in more marketing /sales meeting
context ;)
That is far from clear. It seems that ROC curves are being used to
impress non-statisticians more than for shedding light on the
Another approach that will probably be more work up front, but may be better in
the long run if you are going to be doing a lot of this is to use the maptools
and sp packages. Create a spatialpointsdataframe from your data, read in a us
map (there are shapefiles that you can get from the US cen
Try
AA <- apply(A,1,function(x) paste(x,collapse=""))
and work with AA.
--- On Tue, 30/9/08, Jose Luis Aznarte M. <[EMAIL PROTECTED]> wrote:
> From: Jose Luis Aznarte M. <[EMAIL PROTECTED]>
> Subject: [R] ordering problem
> To: [EMAIL PROTECTED]
> Received: Tuesday, 30 September, 2008, 8:43 P
On Tue, Oct 7, 2008 at 8:54 PM, Rolf Turner <[EMAIL PROTECTED]> wrote:
>
> I am trying to do a histogram lattice plot and I would like the
> histogram to be filled with a different colour in each panel.
>
> Note: I want every bar in each histogram to be the same colour,
> but that there should be
I am trying to do a histogram lattice plot and I would like the
histogram to be filled with a different colour in each panel.
Note: I want every bar in each histogram to be the same colour,
but that there should be different colours *between* histograms.
Can't seem to get this to work. I thou
Hello everybody,
I have a package with a C codes called from R.
I want to debug the C functions to check variables values and to include some
breakpoints in the C codes.
I am wondering if anyone knows of any tools to easily help debug in the R
environment.
Thank you very much for your help.
generally speaking, there are 2 types of validation, out of sample and out
of time.
it is hard to tell if 5000 is enough or not. how many 1s and 0s in 5000?
i am just curious. how could you be asked to do something that you have no
idea?
On Tue, Oct 7, 2008 at 8:22 AM, Maithili Shiva <[EMAIL PRO
On 07-Oct-08 22:23:22, Bert Gunter wrote:
> But it **is** indexed in both of V&R's MASS and S Programming.
> I have no idea whether the info there will be helpful to you,
> of course. I would find (and have found) it so.
> -- Bert Gunter
The discussion of factors in V&R is certainly quite comprehe
Hi,
Yes, from my humble opinion, it doesnt make any sense to use the (2-class) ROC
curve for a rating system. For example, if the classifier predicts 100% for all
the defaulted exposures and 0% for the good clients, then even though we have a
perfect classifier we have a bad rating system.
Ho
This is a follow-up on the discussion originally posted on the R-devel list (
http://tolstoy.newcastle.edu.au/R/e4/devel/08/06/1901.html ), as I have
encountered the exact same issue mentioned in Martin's email. Here is a
simplified version of my problem:
##=
Ben Bolker wrote (to the r-sig-mixed-models list):
I still don't know what to do about the compromise between
how statistics should be done and how journal editors seem
to insist it should be done ...
This seems to me to be worthy of being included as a fortune.
the purpose of validating indirect measures such as ROC curves.
Biggest Purpose- It is useful while in more marketing /sales meeting context
;)
Also , Deciles specific performance is easy to explain and monitor for
faster execution/re modeling.
Regards,
Ajay
On Wed, Oct 8, 2008 at 4:01 AM, Fr
Em Terça 07 Out 2008, Dr Eberhard Lisse escreveu:
> Why don't you hack a little script that looks at system load,
> temperature and date/time and writes it somewhere. Then
Done! Columns are time, % of cpu usage and cpu temp in Celsius degrees.
The R script used was complete in about 2 min 10 sec a
On 07/10/2008 6:08 PM, claudia tebaldi wrote:
Dear R-helpers,
I have lat/lon coordinates of regularly spaced grid points, about 4Km
apart, covering the entire US continental region.
I would like to mask this rectangular grid in order to extract all and
only the grid points within a specific regi
Ajay ohri wrote:
This is an approach
Run the model variables on hold out sample.
Check and compare ROC curves between build and validation datasets.
Check for changes in parameter estimates (co efficients of variables) p
value and signs.
Check for binning (response versus deciles of individ
But it **is** indexed in both of V&R's MASS and S Programming. I have no
idea whether the info there will be helpful to you, of course. I would find
(and have found) it so.
-- Bert Gunter
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
This is an approach
Run the model variables on hold out sample.
Check and compare ROC curves between build and validation datasets.
Check for changes in parameter estimates (co efficients of variables) p
value and signs.
Check for binning (response versus deciles of individual variables).
Chec
Dear R-helpers,
I have lat/lon coordinates of regularly spaced grid points, about 4Km
apart, covering the entire US continental region.
I would like to mask this rectangular grid in order to extract all and
only the grid points within a specific region. Today I want to
extract Montana, say, from
Exactly. It's solved. Just remove #15.
CAPpotiFTI<-CAPpotiFT
for(i in c(2:8))CAPpotiFTI$CCA[[i]][,1]<-CAPpotiFTI$CCA[[i]][,1]*-1
It seems that I've to pay more attention and study more about R language.
Thanks a lot once more.
Rodrigo.
--
From:
>> Well, writing on my rebuttal, I find myself being unable to explain in a
>> few, easy to understand (and, at the same time, correct) sentences
stating
>> that it is not a good idea to report (most likely wrong) dfs and F
>> statistics.
Without pretending to be able to discuss the details, may
Hi Rodrigo,
This is because [I now see] you are working on a capscale object, not a cca
object, which is what I thought you were using. It still works, though, even
with c(2:8,15), though DF #15 doesn't exist in capscale objects. To show you
that this is so, run the example below, which uses a da
stephen sefick gmail.com> writes:
>
> that is a pretty big question. And I am not qualified to answer it,
> but my suggestion- from figuring out how to use other things- is to
> find out how other people have modeled ecological niches- not
> necessarily with R, and then try and find out functi
This is probably a very basic question. I want to understand factors but I am
not sure where to turn. Looking up factor in the Chambers book doesn't even
show up in the index. Maybe I am just slow but ?factor doesn't help either.
Would someone please point me to a very basic tutorial where I can
Thierry,
Thanks. This worked.
Cheers,
Michael
On Fri, Oct 3, 2008 at 2:46 AM, ONKELINX, Thierry
<[EMAIL PROTECTED]>wrote:
> Michael,
>
> You get this error because you make the subset at the wrong place. Try
>
> p <- ggplot(dat[dat$sc_recov %in% c(21,31,41), ], aes(x=bbContag,
> y=..density..))
Deepayan,
Thanks for the advice.
-Micahel
On Fri, Oct 3, 2008 at 1:24 AM, Deepayan Sarkar
<[EMAIL PROTECTED]>wrote:
> On 10/2/08, Michael Just <[EMAIL PROTECTED]> wrote:
> > Dieter and Thierry:
> >
> > Per you suggestions I have tried:
> >
> > ggplot2 from Thierry:
> >
> > > p <- ggplot(dat, a
John,
Try the following:
> mapply(function(p, r, x) sub(p, r, x, fixed = TRUE), p=patt, r=repl, x=X)
b cda
"aB" "CD" "ef"
-Christos
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Thaden, John J
> Sent: Tuesday, October 07, 2008 3:59 P
Hi John,
Wouldn't you get the same with just mapply(sub, patt, repl, X) ?
Nael
On Tue, Oct 7, 2008 at 9:58 PM, Thaden, John J <[EMAIL PROTECTED]> wrote:
> R pattern-matching and replacement functions are
> vectorized: they can operate on vectors of targets.
> However, they can only use one pat
Well this time I have to assume, I'm not understanding what is wrong now.
And I have to say: 'Thank You for your patience', cause I'm going crazy
here! :-)
Mark, I tried this:
CAPpotiFTI<-CAPpotiFT
for(i in c(2:8,15)) CAPpotiFTI$CCA[[i]][, 1]<-CAPpotiFTI$CCA[[i]][, 1] * -1
and got this:
Erro
R pattern-matching and replacement functions are
vectorized: they can operate on vectors of targets.
However, they can only use one pattern and replacement.
Here is code to apply a different pattern and replacement
for every target. My question: can it be done better?
sub2 <- function(pattern, re
You may find this site useful:
http://lme4.r-forge.r-project.org/bib/lme4bib.html
On Tue, Oct 7, 2008 at 9:08 AM, Dieter Menne
<[EMAIL PROTECTED]> wrote:
> Julia S. gmail.com> writes:
>
>> Now, I did that in my article and I got a response from a reviewer that I
>> additionally should give the
Many thanks, I think I got the spirit of 'capturing and overriding'
the arguments which was the bit i was missing. It's much clearer now
with a working example.
Thanks again,
baptiste
On 7 Oct 2008, at 21:19, Deepayan Sarkar wrote:
On Tue, Oct 7, 2008 at 8:54 AM, baptiste auguie <[EMAIL P
not reproducible.
On Tue, Oct 7, 2008 at 11:35 AM, dimitris kapetanakis <[EMAIL PROTECTED]> wrote:
>
> Dear all,
>
> I am running a code using bootstraps for estimating standard errors but the
> mac crashes. When I use small number of bootstraps (100) it works fine but
> if I increase that number
On Tue, Oct 7, 2008 at 8:54 AM, baptiste auguie <[EMAIL PROTECTED]> wrote:
> Dear list,
>
>
> I've been trying this for a few hours and I just don't understand how
> lattice works with groups and subscripts.
>
> Consider the following example,
>
>
>
>> xx <- seq(1, 10, length=100)
>> x <- rep(xx, 4
that is a pretty big question. And I am not qualified to answer it,
but my suggestion- from figuring out how to use other things- is to
find out how other people have modeled ecological niches- not
necessarily with R, and then try and find out functions that preform
the pieces or the whole analys
Hi Rodrigo,
Yes it does, but this will work. You have erroneously used a "," in your
call, it should be a ".", if anything. You have also inserted "cca"... And
the axes being switched must be conformant:
>> CAPpotiFTI<-CAPpotiFT
>> for(i in c(2:8,15))
>> CAPpotiFTI$CCA[[i]][,2]<-CAPpotiFTI,cca$C
[EMAIL PROTECTED] wrote:
Hi Frank,
Thanks for your feedback! But I think we are talking about two different
things.
1) Validation: The generalization performance of the classifier. See,
for example, "Studies on the Validation of Internal Rating Systems" by
BIS.
I didn't think the desire was
To all:
I'm using RBloomberg to pull historical equity prices across a range of
international markets. Bloomberg defaults to returning stock prices to
R in local currency, for example,
blpGetData(conn, "ALUA AR Equity", "PX_LAST",start="09/30/08",
end="09/30/08")
returns a stock price in Argen
Sorry for the mistake, I'm trying to rotate the CAP 1 axis not 2!
Ah well, I tried the this other way, but it gave me an error.
Something in the syntax, I tried to change something but didn't fix the
error.
CAPpotiFTI<-CAPpotiFT
for(i in c(2:8,15)) CAPpotiFTI$CCA[[i]][,2]<-CAPpotiFTI,cca$CCA[[i
Try the linear quantile regression function rq() in the quantreg package.
For 1 sample estimates, your model would have just an intercept term.
There is a weight argument.
quantiles.out <- rq(y ~ 1, data=mydata, tau=1:9/10, weight=myweights)
would yield the 0.10, 0.20, ..., 0.80, 0.90 weighted
There was discussion about language desing here recently -- other
languages are aparently badly designed.
They:
1. Allow you to sort lists, which is bad idea.
2. Probably use name like 'sort.list' for that purpose, which is even
worse idea.
3. Do not respond 'error: have you called sort on a list'
[EMAIL PROTECTED] wrote:
Hi,
how can I attach variable labels originally read by read.spss() to the
resulting variables?
X <- read.spss('data.sav', use.value.labels = TRUE, to.data.frame =
TRUE, trim.factor.names = TRUE, trim_values = TRUE, reencode = "UTF-8")
names(X) <- tolower(names(X))
sj wrote:
I have a set of values and their corresponding weights. I can use the
function weighted.mean to calculate the weighted mean, I would like to be
able to similarly calculate the weighted median and quantiles? Is there a
function in R that can do this?
thanks,
Spencer
library(Hmisc)
?
Hi Rodrigo,
Again an error, as that doesn't touch one of the data structures. You need
to extend the range to include #15, as below:
## This does axis 2
mynew.cca <- my.cca
for (i in c(2:8,15)) mynew.cca$CCA[[i]][, 2] <- mynew,cca$CCA[[i]][, 2] * -1
Cheers, Mark.
Mark Difford wrote:
>
> Hi R
Just as a curiosity. Is there on R any function able to run a SimPer
(Similarity Percentage Analysis)? It's an analysis of the Primer software. I
guess, but I'm not sure!
I was looking for it on CRAN, but I didn't found anything.
___
MSc. Rodrigo Aluizio
Centro de
Hi Rodrigo,
I looked through my scripts and found my old hack. __WARNING__: Be very
careful to check that
the mirror isn't broken and that all is in order! Make sure that you are
reversing the axes you want. In your original post you mention axis 2, i.e.
y-axis. Below you have used axis 1.
## Th
Here is one way that might work for you:
> x <- c(20,18, 45, 16, 47, 47, 15, 26, 14,14,12,16,35,27,18,94,16,26,26,30)
> # create a matrix of pairs
> matrix(sample(x), ncol=2)
[,1] [,2]
[1,] 14 16
[2,] 27 20
[3,] 26 16
[4,] 47 15
[5,] 35 47
[6,] 16 18
[7,] 14
I have a set of values and their corresponding weights. I can use the
function weighted.mean to calculate the weighted mean, I would like to be
able to similarly calculate the weighted median and quantiles? Is there a
function in R that can do this?
thanks,
Spencer
[[alternative HTML ve
Thanks a lot, Petr! This works perfect!
myList was actually a list of data.frame, and the command line
initially choked. But once I converted it to matrix, it worked like a
charm:
apply(do.call(rbind, lapply(lapply(myList, as.matrix), c)), 2, t.test)
Thanks,
Gang
On Mon, Oct 6, 2008 at 9:42 AM
Hi, and thanks for your email,
I realise my example was not very good. The actual dataset I'm trying
to plot is rather big and this oversimplified example did not make
much sense.
I actually do need to color different subsets of the data differently
in each panel, that's why I thought of
On 10/7/2008 12:23 PM, Gang Chen wrote:
Thanks a lot for the suggestion!
Unfortunately " R --no-save < prog.R" does not work well with my
situation because prog.R
contain lines such as readline() and () that require user response in
the middle of the
execution. I also tried other options such as
On 07-Oct-08 17:46:52, Hsiao-nan Cheung wrote:
> Hi,
> I have a question to ask. if in a linear regression model, the
> independent variables are not statistically significant, is it
> necessary to test these variables in a non-linear model?
> Since most of non-linear form of a variable can be repr
Is Rscript what you want?
http://stat.ethz.ch/R-manual/R-patched/library/utils/html/Rscript.html
>From the docs I can't see if it allows interactivity (also through
tcl/tk). Still, give a look.
ScionForbai
__
R-help@r-project.org mailing list
https://
I think prior posters addressed that or maybe what you really want is
a command that accepts your function and automatically constructs
a GUI front end for it. In that case see ggenericwidget in the gWidgets
package and the fgui package. You don't need VB at all for this.
On Tue, Oct 7, 2008 at
Well here is one example where x is not significant in a linear regression:
> x <- seq( -1,1, 0.1 )
> y <- x^2 + rnorm(21,0,.1)
> summary(lm(y~x))
Would you really want to dismiss any relationship (non-linear) between x and y
based on the above p-value?
--
Gregory (Greg) L. Snow Ph.D.
Statistic
Thanks for the suggestion, Luke!
Your approach would load prog.R whenever invoking R, but that is not
exactly what I want. Basically I can run prog.R through
source("~/someDir/prog.R") inside R. Also since prog.R involves many
lines of readline() and tclvalue() in tcltk package, the program
requir
Hello R users
My goal is to use R to write functions for and automate a series of analyses
i would like to do on a large data set. The calculations are not very
difficult in themselves, however they will be very time consuming (Plus I
think R will be extremely useful and this is another excuse to
THank you. I just didn't know the "rules". In other languages it is possible to
pass in a 'compare' function so the sort is defined by the function. I guess I
was a) wondering why it failed, and b) if there was a similar work around to
sort generic lists. Also I was specifically addressing the l
Hi,
I have a question to ask. if in a linear regression model, the independent
variables are not statistically significant, is it necessary to test these
variables in a non-linear model? Since most of non-linear form of a variable
can be represented to a linear combination using Taylor's theore
Ok Mark, it worked for the species.
I still get an error if I try with biplot (cn,sp), but it's not a problem,
repositioning the species is enough.
Thanks once again.
Just for future consults the error that still remains:
CAPpotiFTI<-scores(CAPpotiFT, display=c('bp','species','cn','sites')
CAPp
Dear all,we just realized something. Sarah's distance function - indeed -
calculates mahalanobis distance very well. However, it uses the
observed variance-covariance matrix by default.
What we actually need (sorry for not stating it clearly in to be able to
specify which variance-covariance matrix
Sorry that my post wasn't very clear.
What I am wanting to do is learn to build some simple GUIs for a limited
number of functions. Basically, I am envisioning a screen with check boxes,
a drop down menu etc. that users could select to run analyses on imported
data.
I have worked with VB before,
Not exactly sure what you want to do, but ...
In your example, you do not need groups, since the color doesn't change
within the levels of the conditioning variable (fact). Hence you can use the
panel.number() function to choose the plotting color of each panel, like
this:
## .. continuing with y
Seek and ye shall find ... Check the RGUI's link on the "other" web page on
CRAN.
If you are on Windows, there is some simple built-in GUI functionality.
?winMenuAdd, ?select.list and the links therein will get you started there.
Cheers,
Bert Gunter
-Original Message-
From: [EMAIL PROTEC
Georgina Sarah Humphreys research.gla.ac.uk> writes:
>
> Does anyone know how to retrieve the R squared value for a line on a graph?
The balloon rule
http://www.jstor.org/pss/2683562
Dieter
__
R-help@r-project.org mailing list
https://stat.ethz.ch/
Wade,
What type of GUI do you want?
Do you want a full GUI that the user runs to do everything (that uses R as the
computational engine)? Look at R commander, JGR, and the R plugin for Excel as
possible examples.
Are you more interested in a simple GUI for one specific plot or function to
ru
Hi Frank,
If the way distance() calculates the Mahalanobis distance meets your
needs other than the covariance specification, you can tweak that
_very_ easily. If you use fix(distance) at the command line, you can
edit the source.
change the first line to:
function (x, method = "euclidean", icov)
Georgina Sarah Humphreys research.gla.ac.uk> writes:
>
> Does anyone know how to retrieve the R squared value for a line on a graph?
>
> Thanks
> Georgina
>
We need a LOT more information to answer your question ...
please read the posting guide and tell us in a bit more
detail what you're
Since objects of class "list" in R can be made up of heterogeneous
objects, sorting them does not make much sense. For example, does "A",
come before or after 1000, does a linear model summary come before or
after pi?
If your data are all numeric, store them as a numeric vector, where sort
w
Hi all,
I have looked around for help on creating GUIs for R, but haven't found
anything. I would be interested in any advice or webpages that have
information on the best language, tutorials etc. for creating simple GUIs.
Mainly I want to do this as a heuristic exercise.
Thanks for any help.
W
Exactly what were your expections from sorting the list? What did you
expect the answer to look like? You can 'unlist' the list and then
sort the elements:
> x[["A"]] <- 1:10
> x[["B"]] <- 4:12
> sort(unlist(x))
A1 A2 A3 A4 B1 A5 B2 A6 B3 A7 B4 A8 B5 A9 B6 A10 B7 B8 B9
1 2
Try this:
x[order(unlist(x), decreasing = TRUE)]
On Tue, Oct 7, 2008 at 1:28 PM, <[EMAIL PROTECTED]> wrote:
> I am trying to sort a list and the data is obiously not in the right format.
> I am trying:
>
> x <- list()
> x[["A"]] <- 1
> x[["B"]] <- 2
>
> order(x)
>
> But am getting:
>
> Error i
I gather you are using Windows and in that case you could
use RDCOMClient or rcom to get it via Internet Explorer, e.g.
library(RDCOMClient)
ie <- COMCreate("InternetExplorer.Application")
URL <- "https://stat.ethz.ch/mailman/listinfo/r-help";
ie$Navigate(URL)
while(ie[["Busy"]]) Sys.sleep(1)
txt
Dear all,
I have strong interest on Ecological Niche Model, which in general use a set
of environmental variables (continuous, categorical etc) and Presence (or
Presense/Absence) records for species. I think that "grasp" and "adehabitat"
packages could help me on these tasks.
My input layers are on
distance() from the ecodist package will calculate Mahalanobis distances.
Sarah
--
Sarah Goslee
http://www.functionaldiversity.org
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http:
Something like
env R_PROFILE=prog.R R
may work for you. You may need to call .First.sys at the beginning of
prog.R to get default packages loaded.
luke
On Tue, 7 Oct 2008, Gang Chen wrote:
Thanks a lot for the suggestion!
Unfortunately " R --no-save < prog.R" does not work well with my
I will preface this message by saying that I am not an R developer and no
very little about R...but here is my situation:
One of my users has developed a model for analysing commodity prices. At the
moment when he runs this model on his daily data set it takes roughly 5
hours to complete. He is u
Hello all,
I am fitting a Gamma distribution to some data I have using nls(). The
function obviously runs into issues when using a 0 as a parameter value. I
understand the line alg = "port" can be used to set the lower bounds to
prevent this from happening. When I run the code I get the following
Dear all,
We have a data frame x with n people as rows and k variables as columns.
Now, for each person (i.e., each row) we want to calculate a distance
between him/her and EACH other person in x. In other words, we want to
create a n x n matrix with distances (with zeros in the diagonal).
Howeve
Does anyone know how to retrieve the R squared value for a line on a graph?
Thanks
Georgina
__
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
an
I am trying to sort a list and the data is obiously not in the right format. I
am trying:
x <- list()
x[["A"]] <- 1
x[["B"]] <- 2
order(x)
But am getting:
Error in order(x) : unimplemented type 'list' in 'orderVector1'
How should I change the list so that it can be sorted? What kinds of objec
Thanks a lot for the suggestion!
Unfortunately " R --no-save < prog.R" does not work well with my
situation because prog.R
contain lines such as readline() and () that require user response in
the middle of the
execution. I also tried other options such as "R -f prog.R" and "R
--interactive < prog
Hi Tony --
Tony Breyal <[EMAIL PROTECTED]> writes:
> Dear R-help,
>
> I want to download the text from a web page, however what i end up
> with is the html code. Is there some option that i am missing in the
> RCurl package? Or is there another way to achieve this? This is the
> code i am using:
Here is something to try:
> result <- list()
> for (i in 1:2){
+ for (j in 1:2){
+ result[[paste(i, j, sep="|")]] <- rep(i,j)
+ }
+ }
>
> result
$`1|1`
[1] 1
$`1|2`
[1] 1 1
$`2|1`
[1] 2
$`2|2`
[1] 2 2
On Tue, Oct 7, 2008 at 11:01 AM, Mark Kimpel <[EMAIL PROTECTED]> wrote:
> I
Antje yahoo.de> writes:
> I get a strange behaviour of a boxplot with the following code. There seems
> to
> be a problem with the xlim-parameter. Did I do anything wrong? What else can
> I
> do to force the boxplot to have a defined x-range?
>
> x <- rnorm(100)
> boxplot(x, notch=TRUE, xla
Dear list,
I've been trying this for a few hours and I just don't understand how
lattice works with groups and subscripts.
Consider the following example,
xx <- seq(1, 10, length=100)
x <- rep(xx, 4)
y <- c(cos(xx), sin(xx), xx, xx^2/10)
fact <- factor(rep(c("cos", "sin", "id", "square")
Dear all,
I am running a code using bootstraps for estimating standard errors but the
mac crashes. When I use small number of bootstraps (100) it works fine but
if I increase that number it crashes.
Thanks in advance
dimitris
The code, the error and my mac characteristics are the following:
Lpatops are not for heavy lifting, they are Toys for the Boys.
I run the .NA country code Top Level Domain Name Registry
which is Java based. It supports an API called EPP and I have
of course a clone on my MacBook (and on the Sexy Little Number
:-)-O). I tested the EPP by writing a loop registeri
Hi Rodrigo,
Sorry again: the structure vegan uses is quite complex. Technically you
should use the extractor function scores() to extract what you want from the
object, e.g. scores(my.cca, display="species") or scores(my.cca,
display="cn") [centroids]. I did work out a quicker way of reversing ax
Hi Frank,
Thanks for your feedback! But I think we are talking about two different
things.
1) Validation: The generalization performance of the classifier. See,
for example, "Studies on the Validation of Internal Rating Systems" by
BIS.
2) Calibration: Correct calibration of a PD rating system
Hi,
how can I attach variable labels originally read by read.spss() to the
resulting variables?
X <- read.spss('data.sav', use.value.labels = TRUE, to.data.frame =
TRUE, trim.factor.names = TRUE, trim_values = TRUE, reencode = "UTF-8")
names(X) <- tolower(names(X))
attach(X)
Thank you
Julia S. gmail.com> writes:
> Now, I did that in my article and I got a response from a reviewer that I
> additionally should give the degrees of freedom, and the F-statistics. From
> what I read here, that would be incorrect to do, and I sort of intuitively
> also understand why (at least I thin
[EMAIL PROTECTED] wrote:
Usually one validates scorecards with the ROC curve, Pietra Index, KS
test, etc. You may be interested in the WP 14 from BIS (www.bis.org).
Regards,
Pedro
No, the validation should be done using an absolute reliability
(calibration) curve. You need to verify that at
I am performing many permutations on a data-set with each permutation
producing a variable number of results. I thought that the best way to keep
track of all this in one object would be with a list ('res.lst'). To address
these variable results for each permutation I attempted to construct this
li
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