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st: Stata 11.1 available
firstname.lastname@example.org (William Gould, StataCorp LP)
st: Stata 11.1 available
Thu, 03 Jun 2010 13:54:48 -0500
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
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
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
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
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
Type -update query- to download and install the update.
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