Displaying 20 results from an estimated 400 matches similar to: "Probit cluster-robust standard errors"
2018 Apr 08
1
How to script the script sample into script "OR", please advice
Dear User R
It's been a pleasure talking with you. I am newcomer use R. Would you
please help me how to translate the script below to "R" script?
* Area under receiver operating characteristic (AU-ROC)
predict r1m1p, p
roctab malaria r1m1p, graph summary
* Area under receiver operating characteristic (AU-ROC) curve
predict r1m2p, mu
roctab malaria r1m2p, graph summary
2011 Jan 25
1
Manual two-stage least squares in R
Hi,
I am trying to manipulate a gls regression model output to adjust for use of
two-stage least squares. Basically, I want to estimate a model, then feed in
a new set of residuals, then re-calculate all of the model output (i.e. the
standard errors of the estimators, etc.). I have found some documentation on
doing this in stata, which is below:
http://www.stata.com/help.cgi?ereturn
I am
2018 Apr 08
2
Syntax roccomp-using R
*Dear Bert, *
Thank you very much for your feedback and the useful link https://rseek.org/
and https://www.r-bloggers.com/calculating-auc-the-area-under-a-roc-curve/.
Actually, I want to know different performance between Stata and R, in
multilevel logistic regression. For this purposes, I replicate ".do" file
use Stata in
2004 Apr 19
1
specifying as.svrepdesign with odd number PSUs
Is there a way to create a BRR svrepdesign from a survey design when the number of PSUs is odd in one or more stratum? Creating a JKn svrepdesign with that condition works okay, but when I tried to create a svrepdesign with type="BRR" I get an error and this message:
"Can't split with odd numbers of PSUs in a stratum"
I get that message when I tell it to merge the
2009 Apr 13
3
Clustered data with Design package--bootcov() vs. robcov()
Hi,
I am trying to figure out exactly what the bootcov() function in the Design
package is doing within the context of clustered data. From reading the
documentation/source code it appears that using bootcov() with the cluster
argument constructs standard errors by resampling whole clusters of
observations with replacement rather than resampling individual
observations. Is that right, and is
2004 Mar 22
2
Handling of NAs in functions lrm and robcov
Hi R-helpers
I have a dataframe DF (lets say with the variables, y, x1, x2, x3, ...,
clust) containing relatively many NAs.
When I fit an ordinal regression model with the function lrm from the
Design library:
model.lrm <- lrm(y ~ x1 + x2, data=DF, x=TRUE, y=TRUE)
it will by default delete missing values in the variables y, x1, x2.
Based on model.lrm, I want to apply the robust covariance
2008 Jul 25
1
extracting Pr>ltl from robcov/ols (Design)
I am trying to extract significance levels out of a robcov+ols call.
For background: I am analysing data where multiple measurements(2 per
topic) were taken from individuals(36) on their emotional reaction
(dependent variable) to various topics (3 topics). Because I have
several emotions and a rotation to do on the topics, I'd like to have
the results pumped into a nice table.
2005 Jan 17
2
Omitting constant in ols() from Design
Hi!
I need to run ols regressions with Huber-White sandwich estimators and
the correponding standard errors, without an intercept. What I'm trying
to do is create an ols object and then use the robcov() function, on the
order of:
f <- ols(depvar ~ ind1 + ind2, x=TRUE)
robcov(f)
However, when I go
f <- ols(depvar ~ ind1 + ind2 -1, x=TRUE)
I get the following error:
Error in
2017 Jul 05
2
Svyglm Error
Greetings,
I am revisiting code from several different files I have saved from the past and all used to run flawlessly; now when I run any of the svyglm related functions, I am coming up with an error:
Error in model.frame.default(formula = F3ATTAINB ~ F1PARED, data = data, :
the ... list does not contain 4 elements
The following is a minimal reproducible example:
library(RCurl)
2009 Oct 23
2
Memory Problems with CSV and Survey Objects
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 Files\R\R-2.9.1\bin\Rgui.exe" --max-mem-size=2047M
Anything higher, and I get an
2012 Jan 19
8
sumarizar
*Hola!!! resulta que tengo unos datos de divisas ordenados por fechas
(días) los que he convertido a formato tipo YYYY-MM-DD donde DD siempre es
01:*
*
*
*
EUR.resto$date<-as.Date(EUR.resto$date)
EUR.resto$mo <- substr(EUR.resto$date,6,7)
EUR.resto$yr <- substr(EUR.resto$date, 1,4)
2004 Apr 12
2
Complex sample variances
Hello,
Is there a way to get complex sample variances in the survey package on summary statistics other than means? If not, can they be added to a future version? It would be be great to have them on totals, quantiles, ratios, and tables (eg row percent, columns percent, etc).
Thanks.
Fred
---------------------------------
[[alternative HTML version deleted]]
2012 Jul 23
3
How to do the same thing for all levels of a column?
Dear all,
I am a R beginner, and I am looking for a way to do the same thing for all
levels of a column in a table.
Basically, I have a bunch of protein sequences composed of different amino
acid residues, and each residue is represented by an uppercase letter. I
want to calculate the ratio of different amino acid residues at each
position of the proteins. Here is an example table:
Proteins
2017 Jul 05
0
Svyglm Error
hi, i am not hitting an error when i copy and paste your code into a fresh
console. maybe compare your sessionInfo() to mine?
> sessionInfo()
R version 3.4.1 (2017-06-30)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows Server 2008 R2 x64 (build 7601) Service Pack 1
Matrix products: default
locale:
[1] LC_COLLATE=English_United States.1252
2012 Sep 12
2
help server slow
suddenly a few days ago it takes about a minute for local help to come up .
i type :
?hist
and get
starting httpd help server ... done
but only after a minute does
http://127.0.0.1:15686/library/graphics/html/hist.html
appear .
Lee De Cola, PhD, MCP.
DATA to Insight
LDECOLA@COMCAST.NET
Reston, Virginia
703 709 6972
571 315 0577 mobile
[[alternative HTML version deleted]]
2013 Apr 22
7
Multiple lon lat points in the map with ggplot2
Hello R users,
For the last few days I am struggling with the following task:
my data.frame:
A1 A2 A3 B1 B2
B3
58.81 53.292 54.501 13.013 17.39 19.407 56.02 56.251 54.033 20.099 13.15
10.411 55.376 53.099 57.625 13.396 21.031 13.22 58.584 53.194 54.218
13.038 16.854 19.289 55.7 55.921 53.847 19.942 13.153 9.828 55.093 52.934
2007 Jan 25
1
summary of the effects after logistic regression model
Dear all, my aim is to estimate the efficacy over time of a treatment for
headache prevention. Data consist of long sequences of repeated binary
outcomes (1 if the subject has at least 1 episode of headache , 0
otherwise) on subjects randomized to placebo or treatment.
I have fit a logistic regression model with Huber-White cluster sandwich
covariance estimator.
I have put in the model the
2002 Mar 22
3
heteroskedasticity-robust standard errors
I am trying to compute the white heteroskedasticity-robust standard errors
(also called the Huber standard errors) in a linear model, but I can't seem
to find a function to do it. I know that the design library in S+ has
something like this (robcov?), but I have not yet seen this library ported
to R.
Anyone know if there is already a function built into R to do this
relatively simple job?
2012 Oct 02
5
smoothScatter plot
Hi, I want to make a plot similar to sm1 (attached). The code I tried is: dcols <- densCols(x,y)
smoothScatter(x,y, col = dcols, pch=20,xlab="A",ylab="B")
abline(h=0, col="red")
But it turned out to be s1 (attached) with big dots. I was wondering if anything wrong with my code. Thanks,Zhengyu
-------------- next part --------------
A non-text
2006 Apr 04
1
F test for clustered data regression ?
I am using the Design library and robcov to compute
variance-covariance matrices for clustered data
regression.
Is there an easy way to compute the F-test (i.e.
linear hypothesis) for clustered data regression ?
Thanks in advance!
Benn