similar to: twang - Toolkit for Weighting and Analysis of Nonequivalent Groups

There may be benefits to having a machine learning method that explicitly targets covariate balance. We have experimented with optimizing the weights directly to obtain the best covariate balance, but got some strange solutions for simple cases that made us wary of such methods. Machine learning methods that yield calibrated probability estimates should do well (e.g. those that optimize the

Dear List, I am having difficulty running the ps() function when variables are stored as factors and was hoping someone could provide some advice on how to proceed. I am running propensity score matching as outlined in: Greg Ridgeway, Dan McCarey, Andrew Morral, Lane Burgette and Beth Ann Grin (May 3, 2013) Toolkit for Weighting and Analysis of Nonequivalent Groups: A tutorial for the twang

Hi all, i am looking to built a simple example of a very basic propensity score adjustment, just using the estimated propensity scores as inverse probability weights (respectively 1-estimated weights for the non-treated). As far as i understood, MLE predictions of a logit model can directly be used as to estimates of the propensity score. I already considered the twang package and the

Hi all, i am wondering if there?s any other method to adjust for selection related bias of estimates except propensity scoring and heckit / mills ratio approach? i also read documentation of Match and twang package so far, so i don?t speak of any ATE / ATT related methods, respectively any methods that match or stratify... Is there something else ? thx in advance

this is the problem: load this R data frame over the internet and save it to your hard drive. http://rss.acs.unt.edu/Rdoc/library/twang/data/raceproling.RData please show how to save a dataset of males only (the variable male=1) to a new dataframe. Then do the same thing for females (male=0). Then show how to recombine the two datasets to belike the original one except that the female

Hello All! I have been working with R for the last couple of weeks and I am very impressed with the capabilities. I am creating hundreds of tables and need to dynamically name the columns. Here is a small snippet of my code: # Turn my clustering data into a data.frame object. names( clusters ) <- Abbreviate( distMethods[ i ], hclustMethods[ j ] ) df <- data.frame( clusters,

Dear All, Can you please suggest me a correct way to load the following R data frame from the internet and save it to the hard drive? The following is what I tried: > raceprofiling <- > read.table("http://rss.acs.unt.edu/Rdoc/library/twang/data/raceprofiling.RData") > save(raceprofiling, file = 'raceprofiling.RData') However, when I used dim() to check the dataset,

Dear R users: I'm happy to announce the first CRAN release of the clubSandwich package: https://cran.r-project.org/web/packages/clubSandwich clubSandwich provides several variants of the cluster-robust variance estimator for ordinary and weighted least squares linear regression models, including the bias-reduced linearization estimator of Bell and McCaffrey (2002). The package includes

Dear R users: I'm happy to announce the first CRAN release of the clubSandwich package: https://cran.r-project.org/web/packages/clubSandwich clubSandwich provides several variants of the cluster-robust variance estimator for ordinary and weighted least squares linear regression models, including the bias-reduced linearization estimator of Bell and McCaffrey (2002). The package includes

I've been running rsync for years, and it's working great - offsite backups, backups to a SAN, etc. It's a lifesaver. Occasionally, I'm getting a very few files that give me something like the following: opendir(etc/gconf/gconf.xml.defaults/schemas/apps/panel/default_profiles): Permission denied delete_one: rmdir usr/src/linux-2.4.21-32.0.1.EL/arch/mips/ite-boards: Permission

Hi Piotr, I think makes sense. Modulo bitcasts, the invariant is identified by a particular pointer SSA value. Given that you can't sensibly have two nonequivalent invariants associated with the same pointer SSA value simultaneously, there's no need to also identify the invariant with a metadata string as well. When we need a new "identifier" for the pointed-to value, we

Dear R-Help List, I'm trying to implement Firth's (1993) bias correction for log-linear models. Firth (1993) states that such a correction can be implemented by supplementing the data with a function of h_i, the diagonals from the hat matrix, but doesn't provide further details. I can see that for a saturated log-linear model, h_i=1 for all i, hence one just adds 1/2 to each count,

2017-01-26 3:28 GMT+01:00 Richard Smith <richard at metafoo.co.uk>: > On 25 January 2017 at 15:03, Hal Finkel via cfe-dev < > cfe-dev at lists.llvm.org> wrote: > >> Hi Piotr, >> >> I think makes sense. Modulo bitcasts, the invariant is identified by a >> particular pointer SSA value. Given that you can't sensibly have two >> nonequivalent

Hello all, why I can run whis command: imap1:~ # doveadm user user001 userdb: user001 ? mail????? : maildir:/var/maildir/vol04/4/46/user001 ? home????? : /var/mailfilter/vol04/4/46/user001 ? quota_rule: *:bytes=100000000 but not this one: imap1:~ # doveadm quota get -u user001 doveadm(user001): Error: user user001: Auth PASS lookup failed doveadm(user001): Fatal: passdb lookup failed what

We're looking for one or more technical people at varying levels for our group at YouGov. See below for the job descriptions. Feel free to email me directly with questions. ------- YouGov is seeking two technically sophisticated persons for its Innovations Group, based in Redwood City. We are looking for people who combine knowledge of applied statistics or econometrics with strong

Hi everyone, Does anyone here has experience using MICE to impute missing value? I am having problem to pool the imputed dataset for a MANOVA test, could you give me some advice please? Here is my code: > library(mice) >

Hi R users: I have the British Household Panel Survey (BHPS) in .tab format. I want to feed it through the Amelia package (which will be an ‘interesting’ job in itself).. But first I need to convert the various types of missing value (from about -9 to -1) to a more generic ‘NA’ code. I’ve written the following function to do this: BHPS.converter <-

On 01/28/2017 10:36 AM, Piotr Padlewski wrote: > > > 2017-01-26 15:41 GMT+01:00 Hal Finkel <hfinkel at anl.gov > <mailto:hfinkel at anl.gov>>: > > > On 01/26/2017 06:44 AM, Piotr Padlewski wrote: >> >> >> 2017-01-26 3:28 GMT+01:00 Richard Smith <richard at metafoo.co.uk >> <mailto:richard at metafoo.co.uk>>: >>

Hello! If I understand this listserve correctly, I can email this address to get help when I am struggling with code. If this is inaccurate, please let me know, and I will unsubscribe. I have been struggling with the same error message for a while, and I can't seem to get past it. Here is the issue: I am using a data set that uses -1:-9 to indicate various kinds of missing data. I changed

Hi, did somebody successfully compile Globus Toolkit 4.0.3 under CenTOS-4.4 from the source installer gt4.0.3-all-source-installer? If yes, with using some special compile controls? Any comments welcome. Regards Joachim Backes <joachim.backes at rhrk.uni-kl.de> University of Kaiserslautern,Computer Center [RHRK], Systems and Operations, High Performance Computing, D-67653