Stata Technical Bulletin
Acknowledgment
I am grateful to Dr. John Moran for alerting me to this error.
References
Bradburn, M. J., J. J. Deeks, and D. G. Altman. 1998. sbe24: metan—an alternative meta-analysis command. Stata Technical Bulletin 44: 4-15.
Reprinted in Stata Technical Bulletin Reprints, vol. 8, pp. 86-100.
Duval, S. and R. Tweedie. 2000. A nonparametric “trim and fill” method of accounting for publication bias in meta-analysis. Journal of the American
Statistical Association 95(449): 89-98.
Steichen, T. J. 2000. sbe39: Nonparametric “trim and fill” analysis of publication bias in meta-analysis. Stata Technical Bulletin 57: 8-14.
sg84.3 Concordance correlation coefficient: minor corrections
Thomas J. Steichen, RJRT, [email protected]
Nicholas J. Cox, University of Durham, UK, [email protected]
Abstract: This insert fixes some bugs and corrects some defaults affecting detailed user control of graphical output in the program
for concordance correlation. The numerical calculations were not changed.
Keywords: concordance correlation, graphics, measurement comparison.
Description
concord computes the concordance correlation coefficient for agreement on a continuous measure obtained by two persons
or methods and provides optional graphical displays. A full description of the method and of the operation of the command was
given by Steichen and Cox (1998a), with revisions and updates in Steichen and Cox (1998b, 2000).
This insert fixes some small bugs affecting detailed user control of graphical display through the connect(), symbol(),
and pen() options. It also corrects a few of the corresponding default values.
Specifically, the default graph-options for graph(loa) now include connect (111.1), symbol(iiioi), and pen(35324)
for the lower confidence interval limit, mean difference, upper confidence interval limit, data points, and regression line (if
requested) respectively, along with default titles and labels. Further, the visual characteristics of the data points and line in the
normal probability plot now follow those of the data points and regression line in the associated loa (limits-of-agreement) plot.
Acknowledgment
We are grateful to Sonia Doria Nobrega for alerting us to the bugs.
References
Steichen, T. J. and N. J. Cox. 1998a. sg84: Concordance correlation coefficient. Stata Technical Bulletin 43: 35-39. Reprinted in Stata Technical
Bulletin Reprints, vol. 8, pp. 137-143.
——. 1998b. sg84.1: Concordance correlation coefficient, revisited. Stata Technical Bulletin 45: 21-23. Reprinted in Stata Technical Bulletin Reprints,
vol. 8, pp. 143 - 145.
——. 2000. sg84.2: Concordance correlation coefficient: update for Stata 6. Stata Technical Bulletin 54: 25-26. Reprinted in Stata Technical Bulletin
Reprints, vol. 9, pp. 169-170.
sg97.2 Update to formatting regression output
John Luke Gallup, Harvard University, [email protected]
Abstract: An update to the outreg command is described.
Keywords: regression output.
I have updated outreg, a program described in Gallup (1998, 1999) that writes regression output to a text file. New
features allow including user-specified statistics and notes, 10% asterisks, table and column titles, scientific notation for coefficient
estimates, and reporting of confidence interval and marginal effects. I have also fixed bugs in the reporting results from dprobit,
heckman, and heckprob regressions, and outreg can now be used after dlogit2, dprobit2, and dmlogit2. Because outreg
has been so extensively modified, we describe its full syntax.