The error message is pretty clear: regardless of what
*you* think, R says that 'isi' is not numeric.
Are you sure that 'isi' is not a *factor* object?
I'm willing to bet that it is.
Use str() to check your data.
-Peter Ehlers
Benjamin Cheah wrote:
Hi all,
I'm having major issues with
Dear All,
I have a question regarding the output of survfit() when I supply a Cox model.
Lets say for example:
library(survival)
fit - coxph(Surv(time, status == 2) ~ factor(spiders), data = pbc)
fit # HR for spiders is significant
newdata - data.frame(spiders = factor(0:1))
sf -
Hello,
I'm using the Hmisc cut2 function to bin a set of data. It produces bins
that I like with results like this:
[96,270]:171
[69, 96): 54
[49, 69): 40
[35, 49): 28
[28, 35): 14
[24, 28): 8
(Other) : 48
I would like to take a second set of data, and assign it to bins based on
factors
sdanzige wrote:
I'm using the Hmisc cut2 function to bin a set of data. It produces bins
that I like with results like this:
[96,270]:171
[69, 96): 54
[49, 69): 40
[35, 49): 28
[28, 35): 14
[24, 28): 8
(Other) : 48
I would like to take a second set of data, and assign it to
On 10/22/2009 10:26 PM, Jacob Kasper wrote:
I am using twoord.plot and my Y axis units on the left y overlap. I tried
using cex.axis in my par command but that only adjusted the x units, not the
y. cex.axis in twoord.plot did not help. How do I adjust Y units in the
twoord.plot?
example:
Charles C. Berry wrote:
On Thu, 22 Oct 2009, Ben Bolker wrote:
Allan.Y wrote:
Hi everyone,
I am wondering if there exists a stepwise regression function for the
Bayesian regression model. I tried googling, but I couldn't find
anything. I know step function exists for regular stepwise
Hi, Ben:
Which chapter in which of Ramsay's books?
For his most recent book (Functional Data Analysis with R and
Matlab, with Giles Hooker and your's truly), there is one script file
for each chapter with names like fdarm-ch01.R, ... fdarm-ch11.R.
These script files reproduce
On 10/23/2009 06:07 AM, Lasse Kliemann wrote:
I wish to save a scatter plot comprising approx. 2 million points
in order to include it in a LaTeX document.
Using 'pdf(...)' produces a file of size about 20 MB, which is
useless.
Using 'cairo_pdf(...)' produces a smaller file, around 3 MB. This
I am running an expt that presents a point process input x and
measures a point process output y. The times of each event are
recorded. The lengths of the data records of x and y are necessarily
different, and can be different by a factor of 10. I would like to
save these data after each
On 10/23/2009 07:58 PM, William Simpson wrote:
I am running an expt that presents a point process input x and
measures a point process output y. The times of each event are
recorded. The lengths of the data records of x and y are necessarily
different, and can be different by a factor of 10. I
Hello,
Mle2 is a little unforthcoming in the matter of standard errors? Is there a
way to ask the program to supply standard errors along with estimates in
cases when it doesn't print them 'voluntarily'?
regards,
s
[[alternative HTML version deleted]]
Jim Lemon wrote:
On 10/23/2009 07:58 PM, William Simpson wrote:
I am running an expt that presents a point process input x and
measures a point process output y. The times of each event are
recorded. The lengths of the data records of x and y are necessarily
different, and can be different by
alexander russell wrote:
Hello,
Mle2 is a little unforthcoming in the matter of standard errors? Is there a
way to ask the program to supply standard errors along with estimates in
cases when it doesn't print them 'voluntarily'?
regards,
s
What did you do? Which cases? Did you look at the
The way you do it is to compute the cross-intensity function (you can
google this; a key name is David Brillinger). The general problem is
that of system identification for point processes.
Bill
On Fri, Oct 23, 2009 at 10:31 AM, Jim Lemon j...@bitwrit.com.au wrote:
On 10/23/2009 07:58 PM,
As I understand it, they don't come in pairs anyway.
Correct.
For the same reason
a data frame is just the wrong kind of data structure. If you don't want
separate data files, you can use one file with two columns where the
second column is (say) 1 for the x and 2 for the y.
Could you
Thanks Jim. BTW the times in x and y are in ascending order (time of
occurrence).
If I do it this way, how do I actually read the data in and store in
the file? Toy code, please.
Bill
Hi Bill,
xy-list(x=1:10,y=1:100)
Note that this cheerfully ignores how you are going to figure out which
William Simpson wrote:
As I understand it, they don't come in pairs anyway.
Correct.
For the same reason
a data frame is just the wrong kind of data structure. If you don't want
separate data files, you can use one file with two columns where the
second column is (say) 1 for the x and 2
OK thanks, I look at sleep and get it
Bill
On Fri, Oct 23, 2009 at 12:21 PM, Peter Dalgaard
p.dalga...@biostat.ku.dk wrote:
William Simpson wrote:
As I understand it, they don't come in pairs anyway.
Correct.
For the same reason
a data frame is just the wrong kind of data structure. If you
On 10/23/2009 10:07 PM, William Simpson wrote:
Thanks Jim. BTW the times in x and y are in ascending order (time of
occurrence).
If I do it this way, how do I actually read the data in and store in
the file? Toy code, please.
Hi Bill,
This seems a bit like some heartbeat data that I had
On 10/23/2009 10:07 PM, William Simpson wrote:
Thanks Jim. BTW the times in x and y are in ascending order (time of
occurrence).
If I do it this way, how do I actually read the data in and store in
the file? Toy code, please.
Hi Bill,
This seems a bit like some heartbeat data that I had to
Barry Rowlingson wrote:
However, arima crashes for this:
arima(c(1.71, 1.78, 1.95, 1.59, 2.13), order=c(1,0,0))
I'm not getting what I'd call 'crashes' with your arma or arima
examples- I get an error message and a warning:
arma(c(2.01, 2.22, 2.09, 2.17, 2.42), order=c(1,0))
Error in
Dear all,
A question related to the following has been asked on R-help before, but
I could not find any answer to it. Input will be much appreciated.
I got an unexpected sign of the slope parameter associated with a
covariate (diam) using zeroinfl(). It led me to compare the estimates
given
I don't seem to get a problem with this. Have you tried a Monte Carlo
approach to verify that you are getting incorrect answers?
For me, I get when the upper is 1 that
integrate(e2, lower = 0, upper = 1)
-0.2820948 with absolute error 5e-05
sum(e2(runif(1)))/1
[1] -0.2825667
which
On Fri, Oct 23, 2009 at 12:32 PM, Alberto Monteiro
albm...@centroin.com.br wrote:
I mean that, if I run a loop, it doesn't finish. Or, more
catastrophically, if I am running a loop and saving data to an
open file, it terminates the loop and does not close the file.
Reproducible example:
Dear list,
I would like to produce a matrix of plots, where par() is reset after
each plot (see below [simplified] example). When I use layout() to do
so, I seem to also reset the layout. I have not been able to figure out
how to prevent this from happening.
Any help is greatly appreciated!
Maybe something like this?
#Desired result is a layout of 2 plots: one red and one black
par(mfrow=c(2,1))
par(col=red)
plot(1:100)
par(col=black)
plot(1:10)
On Fri, Oct 23, 2009 at 7:26 AM, Janke ten Holt j.c.ten.h...@rug.nl wrote:
Dear list,
I would like to produce a matrix of plots,
Hi Peter and Spencer (and everyone else out there),
Thank you for your prompt reply to my post re. FDA - FYI - i'm very new to R
and FDA. Currently half way through a biostats masters degree in Sydney,
Australia! Absolutely loving it and I hope to include R computing on my future
CV!
Just to
OK, maybe I oversimplified the example, because you are of course correct...
I am working on a function, which I feed data to plot in layouts of
specified dimensions. I want to be able to set any par() variables for
each plot in the layout. Because the next plot does not know which par()
Hi all,
I am trying to do wavelets and I got an error message saying The
length of data is not a power of 2
Is there a way of handing that? or should the data length be exactly
the power of 2?
I am using R version 2.9.2 (2009-08-24)
The is library(wavethresh).
wds -
I believe that you can extend it to the power of 2 by padding it with
zeros. I don't remember if it is at the begining or the end of the
time series.
hth
stephen
On Fri, Oct 23, 2009 at 7:56 AM, Ashta sewa...@gmail.com wrote:
Hi all,
I am trying to do wavelets and I got an error message
hi all,
I don't use the package wavethresh, but I suppose that
should be possible to fill of ZEROS (zero padding) the time series,
such that its length has a 2^n elements. Another way is to
cut (remove) some elements, so that, the new length
has 2^n elements.
You can get more info. @
A practical
For now, you might be able to use par(las=1). You may have
to make enough margin room with par(mar=...) and you'll
probably want to set ylab= and add the y-label with
mtext().
-Peter Ehlers
Jim Lemon wrote:
On 10/22/2009 10:26 PM, Jacob Kasper wrote:
I am using twoord.plot and my Y axis
Dear all,
If I have the following data frame:
set.seed(21)
df1 - data.frame(col1=c(rep('a',5), rep('b',5), rep('c',5)),
col4=rnorm(1:15))
col1 col4
1 a 0.793013171
2 a 0.522251264
3 a 1.74641
4 a -1.271336123
5 a 2.197389533
6 b 0.433130777
7
Steve Lianoglou-6 wrote:
Hi,
On Oct 22, 2009, at 2:35 PM, bbslover wrote:
Usage
data(gasoline)
Format
A data frame with 60 observations on the following 2 variables.
octane
a numeric vector. The octane number.
NIR
a matrix with 401 columns. The NIR spectrum
and I see the
Dear all,
A question related to the following has been asked on R-help before, but
I could not find any answer to it. Input will be much appreciated.
I got an unexpected sign of the slope parameter associated with a
covariate (diam) using zeroinfl(). It led me to compare the estimates
given
hi all,
On Fri, Oct 23, 2009 at 3:05 PM, stephen sefick ssef...@gmail.com wrote:
I believe that you can extend it to the power of 2 by padding it with
zeros. I don't remember if it is at the begining or the end of the
time series.
hth
at the end of the time series
Cheers,
--
Josue Polanco
Hi
I have a factor 'f' and a named list 'jj'.
I want names(jj) to match up with levels(f).
How do I use levels(f) to access elements of jj?
f - factor(c(pigs,pigs,slugs))
f
[1] pigs pigs slugs
Levels: pigs slugs
jj - list(pigs=1:10,slugs=1:3)
My attempts to produce jj$pigs all give
I'm working with a 350MB CSV file on a server that has 3GB of RAM, yet I'm
hitting a memory error when I try to store the data frame into a survey
design object, the R object that stores data for complex sample survey data.
When I launch R, I execute the following line from Windows:
C:\Program
do you mean:
f - factor(c(pigs, pigs, slugs))
jj - list(pigs = 1:10, slugs = 1:3)
jj[levels(f)[1]]
jj[[levels(f)[1]]]
Best,
Dimitris
Robin Hankin wrote:
Hi
I have a factor 'f' and a named list 'jj'.
I want names(jj) to match up with levels(f).
How do I use levels(f) to access elements
Hi all,
I have the data set df with three varaibles,
x1 x2 x3
1 2 5
2 4 1
5 6 0
1 1 2
I want to insert more rows ( eg, 3 rows with value filled with zeros)
1 2 5
2 4 1
5 6 6
1 1 2
0 0 0
0 0 0
0 0 0
Can any body help me out?
Thanks
Hello Dimitris
thanks for this. It works! I guess I was fixated on the dollar sign.
I must confess that I don't really understand any of the error
messages below. Can anyone help me interpret them?
rksh
Dimitris Rizopoulos wrote:
do you mean:
f - factor(c(pigs, pigs, slugs))
jj -
Try this:
rbind(df, matrix(0, 3, 3, dimnames = list(NULL, names(df
On Fri, Oct 23, 2009 at 11:44 AM, Ashta sewa...@gmail.com wrote:
Hi all,
I have the data set df with three varaibles,
x1 x2 x3
1 2 5
2 4 1
5 6 0
1 1 2
I want to insert more rows ( eg, 3 rows with
bbslover wrote:
Steve Lianoglou-6 wrote:
Hi,
On Oct 22, 2009, at 2:35 PM, bbslover wrote:
Usage
data(gasoline)
Format
A data frame with 60 observations on the following 2 variables.
octane
a numeric vector. The octane number.
NIR
a matrix with 401 columns. The NIR spectrum
and I see the
Janke,
Janke ten Holt schrieb:
Dear list,
I would like to produce a matrix of plots, where par() is reset after
each plot (see below [simplified] example). When I use layout() to do
so, I seem to also reset the layout. I have not been able to figure out
how to prevent this from happening.
Tom Gottfried wrote:
Janke,
Janke ten Holt schrieb:
Dear list,
I would like to produce a matrix of plots, where par() is reset after
each plot (see below [simplified] example). When I use layout() to do
so, I seem to also reset the layout. I have not been able to figure out
how to
Ben,
I lose my bet! Good thing my opinion is never worth more than $.02.
Looking at the code for smooth.spline() I see that, although 'argvals'
is the first argument to the function, the error message is generated
by the second argument. [** Spencer, is this intentional? **]
So, Ben, try
?rbind
df1 - data.frame(matrix(rep(0,9),nrow=3))
names(df1) - c(x1,x2,x3)
rbind(df,df1)
--- On Fri, 10/23/09, Ashta sewa...@gmail.com wrote:
From: Ashta sewa...@gmail.com
Subject: [R] Inserting rows
To: R help r-help@r-project.org
Received: Friday, October 23, 2009, 9:44 AM
Hi all,
I
Hi all,
Probably a simple question, but I just can't find a simple answear in the older
threads or anywhere else.
I've added some new vectors as columns in a data frame using cbind(). As
they're all put as the last columns inte the data frame, I would like to move
them to specific positions.
If 'fools rush in where angels fear to tread', then Bayesians 'jump' in
where frequentists fear to 'step'...
Very nice, Chuck! Definitely one for my list of fortunes.
Ravi.
---
Ravi Varadhan, Ph.D.
Assistant
Hello Lasse,
Why not try this?
(1) Create 20MB PDF from R
(2) use convert command in linux, examples below:
convert -resize 50% 20mbfile.pdf smallerfile.pdf
convert -resize 75% 20mbfile.pdf image.png
Ghostscript can help you as well for conversion! Using vector formats
(pdf,ps,eps) are good
dataframe xx
x1 x2 x3
1 2 5
2 4 1
5 6 0
1 1 2
data.frame(xx$x2,xx$x1,xx$x3)
# or
Awkward but works
--- On Fri, 10/23/09, Joel Fürstenberg-Hägg joel_furstenberg_h...@hotmail.com
wrote:
From: Joel Fürstenberg-Hägg joel_furstenberg_h...@hotmail.com
Subject: [R] Change positions
Hi All,
I know someone has posted similar messages before, but there is
no reply. So I wonder whether there is a way to run a nested logit model in
R. It is in the GEV family; however, the commands fitting GEV don't seem to
work for nested logit. Or maybe I have to write down the
These two are for windows. I have a linux machine. Are there any other
reference for linux?
On Fri, Oct 23, 2009 at 12:08 AM, Jorge Ivan Velez
jorgeivanve...@gmail.com wrote:
Hi Peng,
Also, take a look at the following links:
http://robjhyndman.com/research/Rpackages_notes.pdf
Say I want to include the data from Minard's march on Moscow graphic in
a package. They consist of
three data frames, Minard.troops, Minard.cities, Minard.temp.
I've determined that I can document them all in one .Rd file, Minard.Rd,
that starts:
\name{Minard}
\Rdversion{1.1}
\alias{Minard}
DF[ ,names(DF)[c(your_preferred_order)]]
-Peter Ehlers
Joel Fürstenberg-Hägg wrote:
Hi all,
Probably a simple question, but I just can't find a simple answear in the older
threads or anywhere else.
I've added some new vectors as columns in a data frame using cbind(). As
they're all put as
Peter Dalgaard wrote:
alexander russell wrote:
Hello,
Mle2 is a little unforthcoming in the matter of standard errors? Is there
a
way to ask the program to supply standard errors along with estimates in
cases when it doesn't print them 'voluntarily'?
regards,
s
What did you do?
Hi Kingsford,
That's exactly what I was looking for!
Thanks.
Mike
On Thu, 22 Oct 2009, Kingsford Jones wrote:
help(gnls, pack=nlme)
hth,
Kingsford Jones
On Thu, Oct 22, 2009 at 4:36 PM, Michael A. Gilchrist mi...@utk.edu wrote:
Hello,
I've been fitting a random effects model using
On Fri, Oct 23, 2009 at 3:58 AM, Dieter Menne
dieter.me...@menne-biomed.de wrote:
sdanzige wrote:
I'm using the Hmisc cut2 function to bin a set of data. It produces bins
that I like with results like this:
[96,270]:171
[69, 96): 54
[49, 69): 40
[35, 49): 28
[28, 35): 14
[24, 28):
Try this:
df1$SMA - ave(df1$col4, df1$col1, FUN = function(x) c(NA, (head(x,
-1) + tail(x, -1))/2))
It would also be possible to convert it from long form to wide form
using reshape (or read.zoo in the devel version of zoo), convert that
to a zoo series and the use rollapply in the zoo package.
Janke ten Holt wrote:
Tom Gottfried wrote:
Janke,
Janke ten Holt schrieb:
Dear list,
I would like to produce a matrix of plots, where par() is reset after
each plot (see below [simplified] example). When I use layout() to do
so, I seem to also reset the layout. I have not been able to
Hi Pen,
On Oct 23, 2009, at 10:31 AM, Peng Yu wrote:
These two are for windows. I have a linux machine. Are there any other
reference for linux?
The steps are pretty much the same. For instance, in robjhyndman.com
link, you can simply start from step 2 and go on.
Also, the official
The help on mahalanobis {stats} does not include any reference. I'm
interested in understand why Mahalanobis is defined in its current way
and how to use it. Could somebody point me a good book on this? I have
looked through a few books, but they all give very light explanation
on it.
Dieter Menne wrote:
It used to be quite tricky, but on popular request Brian Ripley has added
an example how to extract the intervals using regular expression on the
bottom of the examples for cut (note:cut in base, not cut2 in Hmisc).
Thank you, but the regular expression example
Joel -
Suppose the columns are named x1, x2, x3, x4, and x5.
You can use subscripting:
x[c('x2','x4','x1','x3','x5')]
or, to save typing the quotes
subset(x,select=c(x2,x4,x1,x3,x5))
- Phil Spector
sdanzige wrote:
Thank you, but the regular expression example doesn't seem to work
correctly.
I wrote a regular expression that does seem to work, so I'll post it here
for anyone else that needs it.
labs-levels(df$p_bin)
cbind(lower=as.numeric(sub([[(],,sub(,.*,,labs))),
Hi,
On Oct 23, 2009, at 11:36 AM, Peng Yu wrote:
The help on mahalanobis {stats} does not include any reference. I'm
interested in understand why Mahalanobis is defined in its current way
and how to use it. Could somebody point me a good book on this? I have
looked through a few books, but
Colleagues,
I wish to execute a task only if a particular file is newer than a
second file. I can access the file modification dates using
file.info()$mtime.
This yields a time object (? POSIX).
sizeisdir modemtime
ctime
Tord Snäll-4 wrote:
Dear all,
A question related to the following has been asked on R-help before, but
I could not find any answer to it. Input will be much appreciated.
I got an unexpected sign of the slope parameter associated with a
covariate (diam) using zeroinfl(). It led me to
Barry Rowlingson wrote:
If you're doing anything in a loop that has the potential to fail
because of singularities or other conditions when your model can't be
fitted, you need to stick what you are doing in a 'try' clause. This
lets you trap errors and do something with them.
Plenty
Have a look at your company name and your phone number. Nudge nudge,
wink wink, say no more... /H
On Fri, Oct 23, 2009 at 9:02 AM, Dennis Fisher fis...@plessthan.com wrote:
Colleagues,
I wish to execute a task only if a particular file is newer than a second
file. I can access the file
On Fri, Oct 23, 2009 at 5:02 PM, Dennis Fisher fis...@plessthan.com wrote:
Colleagues,
I wish to execute a task only if a particular file is newer than a second
file. I can access the file modification dates using file.info()$mtime.
This yields a time object (? POSIX).
You can change the order of nearly everything just by applying an appropriate
index and assigning to
the original object. Something like
data - data[,order_of_columns]
Tom
Joel Fürstenberg-Hägg schrieb:
Hi all,
Probably a simple question, but I just can't find a simple answear in the
On Fri, Oct 23, 2009 at 12:10 AM, Peng Yu pengyu...@gmail.com wrote:
I found the following document on making R packages. But it is old.
I'm wondering if there is more current ones and hopefully more
complete ones.
Friedrich Leisch made an excellent tutorial for making R packages,
with a
Consider a data structure where header rows supply ID values (school
and grade in the example below) that are not captured in subsequent rows
df - read.table(textConnection(
school grade studentid score
101 5 NA NA
NA NA 123 21
NA NA 124 25
201 6 NA NA
NA NA 231 33), header=TRUE)
On Thu, 22 Oct 2009, Mura Tamakou wrote:
Dear All,
I have a question regarding the output of survfit() when I supply a Cox model.
Lets say for example:
snipped: code that doesn't quite run
we observe that the 95% CIs overlap!! How is this possible since the HR for
spiders is significant.
One for the ggplot2 gurus...
I have a function which makes a plot just fine if the response vector (res
in the example; fac1 is a factor) has no NA in it. It plots the data, then
makes a little annotation at the bottom with the data counts using:
p - p + geom_text(aes(x = fac1, y = min(res)
Yes, a 350Mb data frame is a bit big for 32-bit R to handle conveniently.
As you note, the survey package doesn't yet do database-backed replicate-weight
designs. You can get the same effect yourself without too much work.
First, put the data into a database, such as SQLite. If you have the
This is kind of a dumb question: I know you can use isdebugged() to find
out if a specific function is flagged for debugging, but is there a way to
list all the functions that are flagged for debugging?
Thanks,
Andrew
[[alternative HTML version deleted]]
Hello-
I have run an ANOVA on 4 treatments with unequal sample sizes (n=9,7,10 and
10). I want to determine where my sig. differences are between treatments
using a Bonferroni test, and have run the code:
pairwise.t.test(Wk16, Treatment, p.adf=bonf)
I receive an error message stating that
On 10/23/2009 1:30 PM, slrei...@vims.edu wrote:
Hello-
I have run an ANOVA on 4 treatments with unequal sample sizes (n=9,7,10
and 10). I want to determine where my sig. differences are between
treatments using a Bonferroni test, and have run the code:
pairwise.t.test(Wk16, Treatment,
list all objects first; use a loop (explicitly or not) to check
whether (1) your objects are functions (2) functions are debugged
f = function(x) x
g = 1
x = ls()
debug(f)
sapply(x[sapply(x, function(i) is.function(get(i)))], isdebugged)
f
TRUE
undebug(f)
sapply(x[sapply(x, function(i)
On 10/23/2009 1:28 PM, Andrew Yee wrote:
This is kind of a dumb question: I know you can use isdebugged() to find
out if a specific function is flagged for debugging, but is there a way to
list all the functions that are flagged for debugging?
No, R doesn't keep any master list, it sets a
Oops... I forgot to mention that 'envir' (or 'pos') should be
specified in ls()/get() in my last reply if you are looking for
debugged functions in environments other than .GlobalEnv.
Regards,
Yihui
--
Yihui Xie xieyi...@gmail.com
Phone: 515-294-6609 Web: http://yihui.name
Department of
I have often wanted to get such a list as well without having to write
code myself. If a function which automatically iterated over all
possible objects and listed out the ones that being debugged were
available in the core it would be useful. Even if its slow this would
be used at debug time
The BIC (Raftery) can be used for quasi-Bayesian model selection, but it's
not stepwise. Ntzoufras shows how to use WinBUGS to conduct Bayesian
model selection, but again it's not stepwise
Ntzoufras, I. (2002), 'Gibbs variable selection using BUGS', Journal of
Statistical Software 7(7),
Hello List,
I am fitting a logistic regression model for some presence/absence type
data. I have numerous covariates I am fitting to explain variation, and I
am using AIC to rank models. However, I would like to report how well my
best model (s) do at prediction. I have looked over the
On 10/23/2009 2:27 PM, Gabor Grothendieck wrote:
I have often wanted to get such a list as well without having to write
code myself. If a function which automatically iterated over all
possible objects and listed out the ones that being debugged were
available in the core it would be useful.
Hi,
I am using R in one of my courses. I am trying to use R's linprog
package to solve to formulate 2-class classification problem as Linear
programming problem.
For my formulation, I need to set to cvec to all 0s.
I know the points are linearly separable so an optimal solution x
does exist,
On Fri, Oct 23, 2009 at 2:34 PM, Duncan Murdoch murd...@stats.uwo.ca wrote:
On 10/23/2009 2:27 PM, Gabor Grothendieck wrote:
I have often wanted to get such a list as well without having to write
code myself. If a function which automatically iterated over all
possible objects and listed
Thanks everyone for the responses. As a suggestion, wouldn't it be useful,
that when you run isdebugged() without any parameters, it would just report
back the functions that are being flagged for debugging?
Andrew
On Fri, Oct 23, 2009 at 2:12 PM, Yihui Xie xieyi...@gmail.com wrote:
Oops... I
On 10/23/2009 2:49 PM, Andrew Yee wrote:
Thanks everyone for the responses. As a suggestion, wouldn't it be useful,
that when you run isdebugged() without any parameters, it would just report
back the functions that are being flagged for debugging?
Could you give an example of what the answer
Hi,
I have a process using svm from the e1071 library. it works.
I want to try using the KSVM library instead. The same data used wiht
e1071 gives me an error with KSVM.
My data is a data.frame.
sample code:
svm_formula - formula(y ~ a + B + C)
svm_model - ksvm(formula, data=train_data,
The stepAIC() function in MASS can be used, with k = log(n), to implement
your suggestion of quasi-Bayesian stepwise selection using the BIC
criterion.
Ravi.
---
Ravi Varadhan, Ph.D.
Assistant Professor, The
Hi,
On Oct 23, 2009, at 2:39 PM, Gabor Grothendieck wrote:
On Fri, Oct 23, 2009 at 2:34 PM, Duncan Murdoch
murd...@stats.uwo.ca wrote:
On 10/23/2009 2:27 PM, Gabor Grothendieck wrote:
I have often wanted to get such a list as well without having to
write
code myself. If a function
On Fri, Oct 23, 2009 at 10:59 AM, Steve Lianoglou
mailinglist.honey...@gmail.com wrote:
Hi,
On Oct 23, 2009, at 11:36 AM, Peng Yu wrote:
The help on mahalanobis {stats} does not include any reference. I'm
interested in understand why Mahalanobis is defined in its current way
and how to use
On Fri, Oct 23, 2009 at 2:52 PM, Duncan Murdoch murd...@stats.uwo.ca wrote:
On 10/23/2009 2:49 PM, Andrew Yee wrote:
Thanks everyone for the responses. As a suggestion, wouldn't it be
useful,
that when you run isdebugged() without any parameters, it would just
report
back the functions
Hi,
I found the reason. By default it puts a condition for x = 0. Is
there a way to get rid of this condition?
Medha
On Fri, Oct 23, 2009 at 2:34 PM, Medha Atre medha.a...@gmail.com wrote:
Hi,
I am using R in one of my courses. I am trying to use R's linprog
package to solve to formulate
Hi,
I have a data set:
Dataset
X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17
1 user1 m 22 19 28 24 12 18 9 7 4 5 4 7 5 7 9
2 user2 f 25 19 23 18 18 15 6 8 6 6 7 10 7 7 7
3 user3 f 28 21 24 18 15 12 10 6 7 9 5 10 5 9 5
4
Dear all,
I want to report the results of discriminant analysis in a way that
would enable the readers to use my results (functions) for
classification of their own cases. For this it should suffice to
provide discriminant functions along with the cut-off values for
distinguishing the groups.
Ravi Varadhan wrote:
The stepAIC() function in MASS can be used, with k = log(n), to implement
your suggestion of quasi-Bayesian stepwise selection using the BIC
criterion.
Ravi.
Although many statisticians use BIC otherwise, it was only designed to
compare two pre-specified models.
Frank
1 - 100 of 134 matches
Mail list logo
