 | | | rhelp | | Like many I am sure I get R-Help in digest form. Its easy enough to
browse the
subject lines but then if an entry interests you you have to embark
on this tedious search or scroll to find it.
ItThe stat.table function in the Epi package won 't do standard deviations.
It didn 't seem that it would be difficult to add an "sd " function to the
stat.table function. Following the example for the mea
Hello all
X is a list of 20 lists and each individual list has 65 elements.
Y is a list of 65 elements.
WANT subtract Y from each of the 20 lists in X.
Here 's what I tried and the error messaI have a large dataset (about 1 million data points from a
68-dimensional state space result of an MCMC simulation) which won 't
fit in memory. I think that the only solution for analyzing this is
saWith much help from Chuck Cleland I was able to get xyplot to
generate the plot I wanted. I 'm trying to write a script (that can be
read using source( "file ")) to create the plots I want and save the
Hello
I 'm performing mvpart analysis I 've chosen to interactively pick the tree
(xv "pick ") and to do multiple cross-validation (xvmult 10). On the plot x-val
relative error f(cp/size of the treDear list
when I execute
library(mda)
x1 <- rnorm(100000 mean 1 sd .12)
x2 <- rnorm(100000 mean .6 sd .12)
y <- pp(x1 1)+pp(x1 1)*pp(x2 .6)+.12*rnorm(length(x1))
mymars <- mars(cbind(x1 x2) y degrDear all
I am quite confused by rpart plotting. Here is example.
set.seed(1)
y <- (c(rnorm(10) rnorm(10)+2 rnorm(10)+5))
x <- c(rep(c(1 2 5) c(10 10 10))
fit <- rpart(x~y)
plot(fit)
text(fit)
TeIf there is a helpfile open (f.e ?glm) and it is the top window then
an exception error occurs (closing RGUI)
when I hit the open file button.
If the helpfile is not the top window (of the RGUI) I Dear all
Is it possible to calculate the first and second derivatives of a cubic spline curve (interpolating through the points) as opposed to a smoothing spline?
If so how is this done? Is it al
dear R wizards
plot( 1 1 ylim (2 10) xlim (2 10) type "n ")
rect( -1 -1 12 12 col gray(0.99) )
unfortunately wipes out the border axes around the plot. how do I keep
this?
regards
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This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whoHi
This is just an FYI documenting a conflict between R and
Google-Desktop. The solution was to click on the Google-Desktop icon
in the systray and click on "Pause Indexing ". I also temporarily
suDear all
Could someone please explain the following perculiarity?
> 2 0.2/0.1
[1] TRUE
> 3 0.3/0.1
[1] FALSE
Similarly
floor(0.2/0.1) 2
floor(0.3/0.1) 2
Thank you
Simon
__________Hi
I 'm a R newbie and want to accelerate the following pre-filtering
step of a data set with more than 115 000 rows
#I 'm wondering if there 's a possibility of having a
bunch of models that have already been assembled and
run using R that might be available to users? My own
interest is in AR and msm models but exam
Ok thanks
I 'll try with a simplier example
I have a vector with 4 levels
dataframe 1
station temp
aaa 12
aaa 13
bbb 12
bbb 20
aaa 23
bbb 21
ccc Hello All
I need to run a multiple regression analysis and use Akaike 's Information
Criterion for model selection. I understand that this command will give the
AIC value for specified models
AIDear R users
Does anybody know if there is an R function (package) to fit a two-terms
exponential model like y a*exp(bx) + c*exp(dx) where y is dependent
variable and x is independent variable. Quick question how can I reverse the order of the rows in a matrix?
i.e. make the last row first and the first row last etc.?
Hi
I had a logit regression but don 't really know how to
handle the "Warning message non-integer #successes in
a binomial glm! in eval(expr envir enclos) "
problem. I had the same logit regressisuppose I have the following data
x <-c(rep(.1 5) rep(.2 6) rep(.4 10) rep(.5 20))
y <-c(rep(.5 3) rep(.6 8) rep(1.2 8) rep(2.5 18) rep(3 4))
If I plot(x y) in R I will only get seven distinct
pointsDear R-listers
I am trying to work with a big (262 Mb) file but apparently reach a
memory limit using R on a MacOSX as well as on a unix machine.
This is the script
> type list(a 0 b 0 c 0)
>Hi to all
I am new in R and I would like to ask how to plot the survival function and the associated baseline hazard in the case of parametric survival estimation models(SURVIVAL PACKAGE). plot.suDear all
Anybody knows about the difference amongst various spline smoothers specifically in R 'bs ' (by default a cubic spline) 'ns ' smooth.spline with roughness penalty along with many other sm
Hi all
Apologies if this has been raised before ... R 's tapply is very fast but if
X has names in this example there seems to be a huge slow down under 1
second compared to 151 seconds. The folOn Mon 8 Aug 2005 Jake Michaelson wrote
> I use Mac OS X at home and Linux at work so the R Aqua GUI has spoiled
> me. I have not seen its equal so far (on Windows or Linux). The most
> importaHi
having a matrix where rows n and cols m I calculated the spearman
correlation values of the matrix this generated a square matrix m x m.
Dose anyone knows how can I create a plot similar to thI have a huge matrix on which I need to do a simple (elementwise)
transformation. Two of these matrices cannot fit in the memory so I cannot
do this in R.
I thought of writing some C code to do thiSorry our emails crossed...
On Mon 8 Aug 2005 Weiwei Shi wrote
> I think the problem might be caused two variables are very correlated.
> Should I check the cov matrix and try to delete some?
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