Displaying 20 results from an estimated 80 matches similar to: "Error using newdata argument in survfit"
2004 Aug 19
0
Clustering and the test for proportional hazards
Dear List,
Is the test for proportional hazards valid when the model contains a cluster
variable? The output looks strange with the cluster variable.
My intervals are based on calendar time and the clustering variable is
related to the season the event occurs in.
model1<-coxph(Surv(Start,Stop,Event)~LagAOO+I(LagAOO^2)+
FirstSeen+TSLE+strata(CumPOO.rc)+cluster(quarter),data=data8, x=T)
2008 Jan 04
3
nls (with SSlogis model and upper limit) never returns (PR#10544)
Full_Name: Hendrik Weisser
Version: 2.6.1
OS: Linux
Submission from: (NULL) (139.19.102.218)
The following computation never finishes and locks R up:
> values <- list(x=10:30, y=c(23.85, 28.805, 28.195, 26.23, 25.005, 20.475,
17.33, 14.97, 11.765, 8.857, 5.3725, 5.16, 4.2105, 2.929, 2.174, 1.25, 1.0255,
0.612, 0.556, 0.4025, 0.173))
> y.max <- max(values$y)
> model <- nls(y ~
2008 Jul 29
1
combining zoo series with an overlapping index?
day<-structure(c(7.7, 7.7, 7.7, 7.7, 7.7, 7.71, 7.7, 7.71, 7.71, 7.7,
7.7, 7.7, 7.7, 7.69, 7.68, 7.68, 7.67, 7.67, 7.67, 7.66, 7.65,
7.65, 7.65, 7.64, 7.64, 7.63, 7.63, 7.63, 7.62, 7.62, 7.62, 7.62,
7.63, 7.63, 7.63, 7.63, 7.63, 7.64, 7.64, 7.65, 7.65, 7.65, 7.66,
7.66, 7.67, 7.67, 7.67, 7.68, 7.68, 7.69, 7.69, 7.69, 7.69, 7.7,
7.7, 7.7, 7.7, 7.7, 7.71, 7.7, 7.7, 7.71, 7.71, 7.7, 7.7, 7.7,
7.7,
2008 Jul 28
1
Interpolating a line and then summing there values for a diurnal oxygen curve (zoo object)
#I would like to interpolate a straight line between 06/08/06 04:16:00 -
06/08/06 20:31:00 with values and then sum them. This is an estimate of
ecosystem #respiration and I will be using this in a larger context(48 days
of these diurnal curves), but for right now I am just trying to figure out
how to do it for this one #day example. I have some other code for
Ecosystem (stream) Metabolism that
2010 Oct 03
2
A problem about nomogram--thank you for you help
dear professor:
I am a doctor of urinary,and I am developing a nomogram of bladder tumor.Now I have a problem about this.
I have got the result like this through analysing the dataset "exp11.sav" through multinominal logistic regression by SPSS 17.0.(the Sig. is high,that is good ,it is just aexperimental data )
Parameter Estimates
Ya
B
Std. Error
Wald
df
Sig.
Exp(B)
95%
2014 Sep 01
1
Correlation Matrix with a Covariate
R Help -
I'm trying to run a correlation matrix with a covariate of "age" and will
at some point will also want to covary other variables concurrently.
I'm using the "psych" package and have tried other methods such as writing
a loop to extract semi-partial correlations, but it does not seem to be
working. How can I accomplish this?
library(psych)
> set.cor(y =
2004 Apr 25
2
nonparametric multiple sample comparison
Hello all,
Here goes one of my first functions.
I want to make a nonparametric multiple sample comparison with unequal sample
sizes (see Zar?s Biostatistical Analysis, 3rd. Ed., pg. 201 Example 10.11, pg.
288 Example 11.10). In the real world, I want to compare samples of fish
length captured with different fishing gears.
After using the Kruskal-Wallis test I want to check the differences
2011 Sep 27
1
ANOVA define as factor or not
Hi all
This is probably a simple problem but somehow I am having much trouble with
finding a solution, so I seek your help!
I have a data-set with continuous response variables. The explanatory
variably is 4xpH treatments (so 8.08, 7.94, 7.81 and 7.71) so also
continuous and not technically factorial.
However I have decided to do Anova's (as well as regression) to explore the
effect of
2012 Apr 08
2
xyplot() does not plot legends with "relation=free" scales
Hi all,
I have this problem with lattice that xyplot() won't draw some of my axis labels if the type (i.e. the relation argument) of scales is set as free. For example, in the plot below, I would want it to also show:
1. the labels E1,...E6 below the 10th panel (i.e. 3rd row, 2 col)....just as it is now done below the 12th panel....
2. as well as the labels (2,4,6,8) on the top of panels 1
2011 May 16
2
Post-hoc tests in MASS using glm.nb
I am struggling to generate p values for comparisons of levels (post-hoc
tests) in a glm with a negative binomial distribution
I am trying to compare cell counts on different days as grown on different
media (e.g. types of cryogel) so I have 2 explanatory variables (Day and
Cryogel), which are both factors, and an over-dispersed count variable
(number of cells) as the response. I know that both
2002 Aug 02
1
Means of Monte Carlo simulated lists
Hello,
I am doing simulations, and I generate a list at each iteration (with
three component matrices in the example below), saving the results in
a list. For example, after two iterations, I have something like
> str(sim.theta)
List of 2
$ :List of 3
..$ : num [1:6, 1:4] -3.67 -1.07 -2.99 -18.38 -3.26 ...
..$ : num [1:6, 1:6] -7.56 -3.14 -4.99 1.03 2.79 ...
..$ : num [1:6, 1:4]
2004 Aug 21
3
Puzzled at lm() and time-series
I tried toy problems and there doesn't seem to be a basic problem
between lm() and ts objects:
X = data.frame(x=c(1,2,7,9), y=c(7,2,3,1))
lm(y ~ x, X)
X <- lapply(X, function(x) ts(x, frequency=12, start=c(1994,7)))
lm(y ~ x, X)
and this works fine - whether you do an lm() before or after making ts
objects, it's okay.
But I have a situation where things aren't okay.
2012 Jun 04
2
paquete SPEI función thornthwaite
Hola eRReros.
Os lo explico con un ejemplo:
# Cargamos los paquetes y el ejemplo
install.packages("SPEI")
library("SPEI")
data(wichita)
# los primeros 12 datos
head(wichita,12)
# mi subset de los primeros 12 datos
meu<-wichita[c(1:12),]
meu
# como veis los valores de TMED son iguales en ambos dataframes.
# ahora viene el problema
# calculamos
2012 Apr 19
0
Thanks-solved:RE: problem extracting data from a set of list vectors
Thanks Don and Jim,
"Get" did the trick! That command is new to me, and is exactly what this problem needed. The syntax that worked is actually slightly simpler than what was suggested. This is what worked:
all.comps <- ls(pattern="^res")
for(i in all.comps){
obj = get(i);
...
Thanks again.
--Kelly V.
-----Original Message-----
From: MacQueen, Don [mailto:macqueen1 at
2015 May 02
2
Samba 4 slow write
Hi folks,
On Fri, Apr 24, 2015 at 08:01:54AM +0800, Jones Syue wrote:
> Hello Ervin,
>
> > I'll notify to you about the result. (First, I need to upgrade
> > that server.)
>
> Sure! That will be great help me to understand if this patch
> works on thast compiling case too,
> thank you.
I"ve downloaded the Ubuntu's Samba 4.1.6 deb source, and patch it
2008 Nov 20
0
Update of X2R (with FishGraph) at CRAN, 20 Nov 2008
X2R is a bundle of three software libraries for passing complicated data
structures from Fortran, C/C++, or AD Model Builder to R. An update has
been sent to CRAN and should be available from mirrors shortly. From the
menu at the left of the CRAN home page, look under Software / Other.
We also have updated FishGraph, a compatible set of R functions for
examining output from fish population
2008 Nov 20
0
Update of X2R (with FishGraph) at CRAN, 20 Nov 2008
X2R is a bundle of three software libraries for passing complicated data
structures from Fortran, C/C++, or AD Model Builder to R. An update has
been sent to CRAN and should be available from mirrors shortly. From the
menu at the left of the CRAN home page, look under Software / Other.
We also have updated FishGraph, a compatible set of R functions for
examining output from fish population
2008 Jan 31
0
Update of X2R (with FishGraph) sent to CRAN, 30 Jan 2008
X2R is a bundle of three software libraries allowing the user to pass
structured data easily from Fortran, C/C++, or AD Model Builder to R.
An update to X2R has been sent to CRAN and should be available at
mirrors shortly. We also have uploaded FishGraph, a set of R functions
to generate graphics from fish population models. From the menu at the
left of the CRAN home page, look under Software /
2008 Jan 31
0
Update of X2R (with FishGraph) sent to CRAN, 30 Jan 2008
X2R is a bundle of three software libraries allowing the user to pass
structured data easily from Fortran, C/C++, or AD Model Builder to R.
An update to X2R has been sent to CRAN and should be available at
mirrors shortly. We also have uploaded FishGraph, a set of R functions
to generate graphics from fish population models. From the menu at the
left of the CRAN home page, look under Software /
2003 Dec 02
2
IPv4-only networks via IPv6-only network
Hello all,
I would like to connect two IPv4-only networks through global IPv6-only
network with tinc.
Could anyone tell me how to configure tinc.conf and the other config files?
Thanks in advance,
Ichiro
Tinc: Discussion list about the tinc VPN daemon
Archive: http://mail.nl.linux.org/lists/
Tinc site: http://tinc.nl.linux.org/