Displaying 20 results from an estimated 1000 matches similar to: "clustering and stratification"
2002 Oct 29
5
error in Fields TPS function
Hello, I was wondering whether anyone out there knows of the solution to a
problem that I'm having with the Fields package. I am getting the error
message when I try and run the fields function tps (thin plate
splines). Namely, for two different sets of variables, I get:
> bout <- Tps( bvolcap, bdsm)
Error in svd(tempM) : error 159 in dsvdc
> wout <- Tps( wvolcap, wdsm)
2006 Jun 18
1
Post Stratification
Dear WizaRds,
having met some of you in person in Vienna, I think even more fondly
of this community and hope to continue on this route. It was great
talking with you and learning from you. Thank you. I am trying to work
through an artificial example in post stratification. This is my dataset:
library(survey)
age <- data.frame(id=1:8, stratum=rep(
2007 Feb 24
1
Woolf's test, Odds ratio, stratification
Just a general question concerning the woolf test (package vcd), when we have
stratified data (2x2 tables) and when the p.value of the woolf-test is
below 0.05 then we assume that there is a heterogeneity and a common odds
ratio cannot be computed?
Does this mean that we have to try to add more stratification variables
(stratify more) to make the woolf-test p.value insignificant?
Also in the
2008 Dec 08
0
Query in Cuminc - stratification
Hello everyone,
I am a very new user of R and I have a query about the cuminc function in the package cmprsk. In particular I would like to verify that I am interpreting the output correctly when we have a stratification variable.
Hypothetical example:
group : fair hair, dark hair
fstatus: 1=Relapse, 2=TRM, 0=censored
strata: sex (M or F)
Our data would be split into:
Fair, male,
2005 May 26
1
Survey and Stratification
Dear WizaRds,
Working through sampling theory, I tried to comprehend the concept of
stratification and apply it with Survey to a small example. My question
is more of theoretic nature, so I apologize if this does not fully fit
this board's intention, but I have come to a complete stop in my efforts
and need an expert to help me along. Please help:
age<-matrix(c(rep(1,5), rep(2,3),
2006 Feb 28
1
Win2K3 Server, in Terminal Session,
I have almost the same setup (NT4 domain, with W2K3 Terminal Server)....
I am using Suse 9.2, Samba 3.0.21b, with winbindd on a generic x86 server.
No special package configurations...just the rpms from samba for Suse.
I do have the same problems.
-- I have home directories mapped for users. When I log into the Term
Server with RDP my home directory on my Samba box comes up just fine..
What
2005 Jan 28
6
disappointed with complete lack of help.
I sent a request for help on the 21st of January....I waited.....I sent it
again on the 24th....I waited.... I sent the same question crafted
differently on the 25th.... I waited.
The help on this list is horrible..... I am sorry for whining.
I talk up open source regularly and I help when I can..... but, the claim
of "better" support from the open source community because there are so
2017 Oct 31
2
SamplingStrata R package
Hi all
I am hoping to use the SamplingStrata R package for a dataset describing a
population of businesses wherein I have information on the type of
business, as well as, for designated employment number bands, number of
employees and business turnover information. So in this context the
employment number bands can be described as micro, small, medium and large,
i.e. size of business. Hence I
2013 Apr 25
1
problem with geom_point in ggplot using a different column
I want to draw boxplot where the geom_points are displayed based on
"ERBB2.MUT" subset and they should be displayed in the right box (based
both on the "ERBB2.2064" field and "ERBB2_Status").
However, given my command I currently only see "red" points corresponding
to "MUT" subset in one straight line corresponding to only "ERBB2.2064"
2017 Oct 31
0
SamplingStrata R package
1. There is no question here.
2. In any case, this is not a code writing service, so a question about how
to code models without any offering of your own attempts might not be
replied to anyway.
3. For what sorts of queries you might expect replies to, please read and
follow the posting guide below. Also, if you do post, please post in plaint
text, not html, as the latter (especially code) can
2007 Sep 07
1
R survey package again
Hi R-users!!
I have some trouble with the survey pakage and i would be very glad if you can give me an advice.
I have a sample from a survey where household were interviewed. The sample has 4 criteria on which the stratification was based: REGION, SIZE OF HOUSEHOLD, SIZE OF LOCALITY, AGE OF HEAD OF HOUSEHOLD. Since i don't have the whole information in each cell of the cross
2017 Oct 31
1
SamplingStrata R package
Hi Bert
thank you for the reply. Not a coding query as such. Just wanted some
pointers towards how to handle strata using the package in my situation,
i.e. business type X business size with information for count and financial
turnover.
many thanks
On 31 October 2017 at 14:37, Bert Gunter <bgunter.4567 at gmail.com> wrote:
> 1. There is no question here.
>
> 2. In any case, this
2015 Jun 15
2
Different behavior of model.matrix between R 3.2 and R3.1.1
Terry - your example didn't demonstrate the problem because the variable
that interacted with strata (zed) was not a factor variable.
But I had stated the problem incorrectly. It's not that there are too
many strata terms; there are too many non-strata terms when the variable
interacting with the stratification factor is a factor variable. Here
is a simple example, where I have
2015 Jun 15
2
Different behavior of model.matrix between R 3.2 and R3.1.1
Terry - your example didn't demonstrate the problem because the variable
that interacted with strata (zed) was not a factor variable.
But I had stated the problem incorrectly. It's not that there are too
many strata terms; there are too many non-strata terms when the variable
interacting with the stratification factor is a factor variable. Here
is a simple example, where I have
2007 Sep 24
1
weighting question
Hi R-users,
Can anyone tell me where can i find info about they way how post stratification weights are calculated when i have an already stratified survey design, especially in Survey Package (but any theoretical material would do me just fine) ?
Thank you and have a nice day!
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2004 Aug 11
1
Stratified Survival Estimates
Using R version 1.8.1 for Windows, I obtain an error message using the following code. The data frame was constructed in the counting process style, where V1 is the start time, V2 is the stop time, and V3 is the censoring indicator. There are no zero-length time intervals. Variable V4 is the stratification factor (gender: F,M).
S<-Surv(V1,V2,V3)
fit<-survfit(S ~ V4,data=test.dat)
2009 Mar 28
1
stratified variables in a cox regression
>Hello,
I am hoping for assistance in regards to examining the contribution
of stratified variables in a cox regression. A previous post by Terry
Therneau noted that "That is the point of a strata; you are declaring
a variable to NOT be proportional hazards, and thus there is no
single "hazard ratio" that describes it". Given this purpose of
stratification, in the
2007 Sep 06
3
Survey package
Good afternoon!
I'm trying to use the Survey package for a stratified sample which has 4 criteria on which the stratification is based. I would like to get the corrected weights and for every element i get a weight of 1
E.g: tipping
design <- svydesign (id=~1, strata= ~regiune + size_loc + age_rec_hhh + size_hh, data= tabel)
and then weights(design)
gives
2006 Mar 01
3
Migration from NT4 to W2K3 AD
Are there any gotcha's.....
I am currently using winbindd and very successfully integrating my Samba
boxes with the NT4 domain structure. The admin who is doing the migration
(A corporate person not used to Linux at all) is already nervous about the
migration since it involves Linux.
Usernames are not supposed to change..but, the authentication domain is
going to be a completely new
2005 Jan 24
0
winbind debugging help.. act 2
Folks,
Not even a peep. Did I ask the wrong question or am I on the wrong
list? I don't mind pointers to more information....
I own both the recent books on Samba 3 and they are very good, but I seem
to be missing something.
Anyways...
Thanks and hope to hear from you soon,
Michael J Barber
WPTZ/WNNE
Computer Services Administrator
p 518-561-5555 x563
m 518-572-6639
f 518-561-5940