Displaying 20 results from an estimated 1000 matches similar to: "Problem VGAM and Predict"
2009 Jan 29
1
Multiple tables
Dear list,
I have a set of 100+ variables. I would like to have one by one crosstables for each variable. I started with
table(variable1, variable2)
table(variable1, variable3)
table(variable1, variable4)
...
table(variable2, variable3)
table(variable2, variable4)
...
It seems rather tedious.
Any better ideas around?
Thanks for any help!
Gerit
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2009 Jan 29
0
Massive UDP and TCP packet loss
Sorry for repost, there was an sending error with my first posting.
-------------------------------------------------------------------
Hi,
I''m trying to get Xen running on 2 different systems and have massive packet losts independ from the system I use!
This are the results from an UDP-Benchmark-Test from an Xen-Server to another one. As you make notice, the
sending packets have a
2008 Nov 13
1
Bug in 1.1.4: New line required in ACL files
Hello,
just wanted to notify you about a bug i found in 1.1.4 ACL handling: Global ACLs are ignored, when there is no line break (i.e. "owner lr" is ignored while "owner lr\n" works). I didn't track this down to see if the same happens for per-user ACLs, but it should be quite obvious in the source anyways.
Regards
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2009 Feb 04
1
Use Speex on embedded ARM-device...
Hi Jean-Marc,
I have just discovered the post of Vit Kanevsky and I have
already sent him a message.
I'm currently evaluating the work of stripping stuff on
the win32 platform(nicer workflow ;-) and noticed that
I could not just leave out the exc_*_table.c files without
getting compiler/linker warning, but possibly I made a
mistake there.
Is my assumption correct that I just need the
2009 May 14
1
.spx documentation
Hi!
I'm looking for a documentation of the .spx file type? I want/need to know how such a .spx file is built up.
I want to create a .wav to .spx converter. And additionally a .spx player.
I already searched the net and the speex site but I couldn't find anything useful. Maybe I'm missing something?
Thanks for your help!
Best regards,
Peter
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2009 Feb 10
2
Problem with retrieving updated variables after attach()
Hello,
suppose I have a data frame:
> mat
id age
1 NA NA
2 NA NA
3 NA NA
4 NA NA
5 NA NA
Then I attach the data frame:
> attach(mat)
I assign some new values...
> id <<- sample(100,5)
> age <<- rnorm(5,mean=30)
Then I want to create a new data frame from the variables id and age which still are attached to position 2 of the R environment...
> new_mat <-
2009 Feb 05
1
optimal control, maximization with several variables?
Dear all,
I would like to solve the following problem, which can be done with optimal control theory or dynamic programming:
max(x,y) a*u1+b*u2+c*f1(u2) s.t. 0<u1<x, 0<u2<f2(x,u2), x'=f3(u1,u2,x)
which can be rewritten if optimal control theory should be applied as
H=a*u1+b*u2+c*f1(u2)+lambda*(x') s.t. 0<u1<x, 0<u2<f2(x,u2)
The maximum principle
2009 Feb 06
1
Linear model: contrasts
Hey,
I am modelling a linear regression Y=X*B+E. To compute the effect of ?group? the B-values of the regressors/columns that code the interaction effects (col. 5-8 and col. 11-14, see below) have to be weighted with non-zero elements within the contrast "Group 1" minus "Group 2" (see below). My first understanding was that the interaction effects add up to zero in each group.
2009 Feb 21
0
density estimation for d>2 for the DPpackage
Dear List,
I am trying to estimate a 3 dimensional density through the DPpackage.
For example
# model
sigma <- matrix(c(0.1,0.05,0.05,0.05,0.1,0.05,0.05,0.05,0.1), ncol=3)
rnormm<- rmvnorm(n=100, mean=c(5,100,150), sigma=sigma)
sigma2 <- matrix(c(10,0.05,0.05,0.05,10,0.05,0.05,0.05,10), ncol=3)
rnormm2<- rmvnorm(n=100, mean=c(20,1,110), sigma=sigma)
rnormm<-rbind(rnormm,rnormm2)
2009 Feb 28
1
(no subject)
Hi,
The bios is not able to boot from usb, but only from floppy. I want to boot an Ubuntu-installation from usb. The iso-file was moved with usb-creator to the usb-stick. I have got a boot-floppy, which starts an DamnSmallLinux usb-stick.
But this bootfloppy doesn't start the Ubuntu-usb-stick.
Which parameters in syslinux.cfg I must change to start Ubuntu-Linux?
There are the following
2009 Jan 05
1
adding a curve with xaxs="i"
I want the curve to touch the y axis like the curve touches the upper boundary.
How can I eliminate the margin between axis and curve on the left side?
x1 <- c(1,2,3,4,5)
x2 <- c(2,4,6,8,10)
mod <- lm (x2~x1)
hm <- function (x) (mod$coe[1]+x*mod$coe[2])
plot.new()
# ...
box()
curve (hm,lty=1,add=T,xaxs="i",yaxs="i")
(R 2.8.1)
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2009 Jan 16
1
(no subject)
Dear users,
i just installed the lastest version of R, 2.8.1 on my computer (OS Windows
XP). Then i tried to update the packages copied from my old R version by
>update.packages(ask=F)
However i get the following warning:
"Warning: unable to access index for repository
http://cran.ch.r-project.org/bin/windows/contrib/2.8
Warning: unable to access index for repository
2008 Dec 29
4
Merge or combine data frames with missing columns
Hi R-experts,
suppose I have a list with containing data frame elements:
[[1]]
(Intercept) y1 y2 y3 y4
-6.64 0.761 0.383 0.775 0.163
[[2]]
(Intercept) y2 y3
-3.858 0.854 0.834
Now I want to put them into ONE dataframe like this:
(Intercept) y1
2013 Apr 17
1
Bug in VGAM z value and coefficient ?
Dear,
When i multiply the y of a regression by 10, I would expect that the
coefficient would be multiply by 10 and the z value to stay constant. Here
some reproducible code to support the case.
*Ex 1*
library(mvtnorm)
library(VGAM)
set.seed(1)
x=rmvnorm(1000,sigma=matrix(c(1,0.75,0.75,1),2,2))
2007 Oct 29
1
VGAM and vglm
Hi Folks,
I wonderif someone who is familiar with the details
of vglm in the VGAM package can assist me. I'm new
to using it, and there doesn;t seem much in the
documentation that's relevant to the question below.
Say I have a vector x of 0/1 responses and another
vector y of 0/1 responses, these in fact being a
bivariate set of 0/1 responses equivalent to
cbind(x,y).
E.g.
2009 Jun 05
2
p-values from VGAM function vglm
Anyone know how to get p-values for the t-values from the coefficients
produced in vglm?
Attached is the code and output ? see comment added to output to show
where I need p-values
+ print(paste("********** Using VGAM function gamma2 **********"))
+ modl2<-
vglm(MidPoint~Count,gamma2,data=modl.subset,trace=TRUE,crit="c")
+ print(coef(modl2,matrix=TRUE))
2012 Jan 10
1
S4 summary method not being called (VGAM)
The symptom triggering this email is that an S4 summary method sometimes refuses to be invoked, even when a package is explicitly loaded, if the first load of the package is implicit. It may or may not be specific to 'summary' methods and/or the 'VGAM' package. I've sent to R-devel because (i) it looks like some kind of bug to me, but I'm not sure; (ii) it's not
2011 Aug 23
1
P values for vglm(zibinomial) function in VGAM
Hi ,
I know this question has been asked twice in the past but to my knowldege,
it still hasn't been solved.
I am doing a zero inflated binomial model using the VGAM package, I need to
obtain p values for my Tvalues in the vglm output. code is as follows
> mod2=vglm(dmat~Season+Diel+Tidal.phase+Tidal.cycle,zibinomial, data=mp1)
> summary(mod2)
Call:
vglm(formula = dmat ~ Season +
2009 Jan 14
2
Set caller ID to anonymous
Hi guys,
I am trying to set the caller ID to 'Anonymous <anonymous>' if the caller is not registered to the asterisk server. But I can't find a solution.
Any ideas?
Regards Philipp
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2009 Jan 16
1
Updating packages under R 2.8.1
Dear users,
i just installed the lastest version of R, 2.8.1 on my computer (OS Windows
XP). Then i tried to update the packages copied from my old R version by
>update.packages(ask=F)
However i get the following warning:
"Warning: unable to access index for repository
http://cran.ch.r-project.org/bin/windows/contrib/2.8
Warning: unable to access index for repository