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Re: st: Stata 11.1 available

From   Roger Newson <>
To   "" <>
Subject   Re: st: Stata 11.1 available
Date   Fri, 4 Jun 2010 13:59:41 +0100

Thanks to all at StataCorp for this. I particularly like the -pformat()- option and the -set pformat- command. I think I will add to my the command

set pformat %-5.1e

so that I don't need to see any more uninformative P-values of 0.000, which could really be anything from 0 to 5.0e-04. (This whole range of P-values was thought by some 20th-century biostatisticians to be as good as zero, before the invention of biochips and genome scans, which routinely generate millions of multiple comparisons at a time.)

I don't seem to be able to find any reference, even in -help undocumented-, to making it possible for Stata users to write their own .pdf documentation for their own user-written packages and to integrate this .pdf documentation with Stata on-line help in the manner of the official Stata user manuals. This project was mentioned on StataList at

Is this a project for a future update? Or is it just so undocumented that it isn't even mentioned in -help undocumented-? (Sorry to be a pest.)

Best wishes


Roger B Newson BSc MSc DPhil
Lecturer in Medical Statistics
Respiratory Epidemiology and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton Campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
Tel: +44 (0)20 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Web page:
Departmental Web page:

Opinions expressed are those of the author, not of the institution.

On 03/06/2010 19:54, William Gould, StataCorp LP wrote:
Stata 11.1 is now available.  It's free.  If you have Stata 11, type
-update query- and follow the instructions.

Usually we would stop right there, but this update is nearly an
upgrade.  Highlights include,

     o Multiple imputation (-mi-) now supports fitting panel-data and
       multilevel models.

     o Truncated count-data models.  New commands -tpoisson- and -tnbreg-
       fit fit models of count-data outcomes with any form of left
       truncation, including truncation that varies observation by

     o Mixed models.  Linear mixed (multilevel) models allow more
       covariance structures for the residuals, including exponential,
       banded, and Toeplitz.

      o Probability predictions.  -predict- after count-data models, such
        as -poisson- and -nbreg-, can now predict the probability of
        particular counts or range of counts.

     o Survey bootstrap.  Estimation commands can now estimate survey
       bootstrap standard errors (SEs) using user-supplied bootstrap
       replicate weights.

     o Survey SDR weights.  Successive difference replicate (SDR) weights
       are now supported when estimating with survey data.  These weights
       are supplied with many datasets from the U.S. Census Bureau.

     o Concordance.  -estat concordance- adds a new measure of concordance,
       Gonen and Heller's K, that is robust in the presence of censoring.

     o Survey GOF.  Goodness-of-fit tests are now available after -probit
       and -logitistic- estimates on survey data.

     o Robust SEs.  Cluster-robust SEs have been added to -xtpoisson, fe-.

     o Survey CV.  The coefficient of variation (CV) is now available
       after estimation with survey data.

     o Estimation output formatting.  Numerical formats can now be
       customized on regression results.  You can set the number of
       decimal places for coefficients, SEs, p-values, and confidence
       intervals using either command-line options or the -set-

       Settings have also been added to control the display of factor
       variables in estimation tables.  These display settings include
       display of empty cells, display of base levels, and omitting
       variables excluded because of collinearity.

     o Stata/MP performance. Stata/MP has several performance
       improvements:  many panel-data estimators are even more
       parallelized, improved parallelization of estimations with more
       than 200 covariates, and improved tuning of MP on large numbers
       of processors/cores.

     o Clipboard improvements.  Clipboard support in the Data Editor
       has been enhanced.  Copies to the Clipboard now retain variable
       formats and other characteristics of the data when pasting
       within Stata.

     o Windows XP.  The amount of memory available to Stata has been
       increased on 32-bit Windows XP.

     o Do-file Editor.  Syntax highlighting, bookmarks, and other
       Do-file Editor features have been added to Stata for Mac.

     o ODBC.  ODBC support has been added for Oracle Solaris (Sun

     o Dialog boxes.  Dialog boxes on Unix now have varlist controls
       that allow you to select variables from a list of variables in
       your dataset.

Type -update query- to download and install the update.

-- Bill
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