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Stata 9 软件更新 (下载 2006-11-21 补丁)
2006-11-27  pomine.com
Stata 9 可执行文件和 ado 文件都已更新到 2006-11-21 的最新补丁,如您能在 Stata 中直接连接 StataCorp 的服务器,请使用 update all 命令进行自动更新。
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如果不能在 Stata 中直接连接服务器,请参照下面的页面,进行手动更新:
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Stata 9 可执行文件手动更新说明
Stata 9 ado 文件手动更新说明
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___2006-11-21 补丁更新内容___
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Ado-files
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1. bstat exited with an error indicating a name conflict when the stat() option contained a matrix with equation names. This has been fixed.
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2. cnreg, logit, mlogit, ologit, oprobit, probit, regress, and tobit are now noticeably faster (up to five times faster) when used within large loops, such as statsby with datasets that have many small by-groups.
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3. histogram with an if condition that excluded one of the categories in the by() option resulted in an extra empty plot when option addlabels or kdensity was specified or resulted in an error when option normal was specified. This has been fixed.
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4. nestreg reported confidence intervals for the default confidence level even when a different confidence level was specified in the level() option of the prefixed command. This has been fixed.
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5. quadchk exited with an error when used to check models using the offset() option. This has been fixed. quadchk also ignored weights and the collinear and constraints() options. This has been fixed.
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6. svy now identifies the rare case when a sampling unit bridges adjacent strata in multistage designs. svy treats all sampling units as nested within strata and units from prior stages.
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7. svy: heckman excluded from the estimation sample observations with a missing value in the dependent variable when it should not have. This has been fixed.
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8. svy jackknife reported incorrect values for the sample size, population size, and number of strata when some of the strata were omitted. This has been fixed.
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9. svy linearization is now two to five times faster. svy: mean, svy:
proportion, svy: ratio, and svy: total are considerably faster when the over() option identifies many subpopulations.
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10. svy: mean, svy: proportion, svy: ratio, and svy: total reported missing standard errors due to strata with one sampling unit even when a subpop() option excluded the offending strata. This has been fixed.
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11. svy: mean, svy: proportion, svy: ratio, and svy: total failed to omit strata that contain no subpopulation members. This has been fixed.
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12. svy: tabulate twoway, when option row or column is specified, uses the ratio estimator to compute cell proportions relative to the row or column margins. For direct standardization, option stdize(), a better estimator is available: the standardized ratio estimator. This standardized ratio estimator is now used in place of the simple ratio estimator when stdize() is specified.
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13. svy: tabulate incorrectly reported zero standard errors when used with survey data that had strata with one sampling unit. Standard errors and confidence intervals are now suppressed with a note explaining why when the se or ci option is specified in such cases.
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14. xtcloglog and xtpoisson with the re and normal options would ignore constraints on lnsig2u. This has been fixed.
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15. xtintreg, xtlogit, xtprobit, xtpoisson with the re and normal options, and xttobit all accepted the collinear option but exited with an error when used with a constraint to define a collinear model. This is now fixed.
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16. xtintreg and xttobit ignored constraints on sigma_u and sigma_e. This has been fixed.
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17. xtline has new i() and t() options. The i() option allows the panels (groups) to be identified using a string variable. The t() option allows a variable with noninteger values and repeated values within group.
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The important effect of this is that xtline can now be used to easily create two-way graphs with separate plots for each level of a categorical variable. For example,
. xtline mpg, t(displacement) i(rep78) overlay creates five line plots of mpg versus displacement, one for each of the five levels of rep78.
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These plots can be rendered as other twoway plottypes by adding a recast() option. For example, adding recast(scatter) to the command above will produce five scatterplots rather than five line plots.
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Stata executable, all platforms
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18. In Mata's ghk() function, when the covariance matrix is not positive definite, the ghk() Cholesky routine will pivot out the offending row and column of the covariance matrix. The ghk() function failed to permute the corresponding upper bound of integration. This has been fixed.
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Stata executable, Windows
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19. Stata for Windows now supports Microsoft Windows Vista.
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Stata executable, Macintosh
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20. For efficiency, when resizing a graph window, Stata draws a preview of the graph rather than completely redrawing the graph. However, the preview could be drawn at the wrong size if the window is quickly resized by jerking the mouse. This has been fixed.
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21. When there is a -more- condition in the Results window, Stata will continuously poll for a key press to clear the -more- condition, which causes the processor usage to be very high. Stata now does not poll as often when there is a -more- condition, causing the processor usage to be very low.
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22. Some graph markers and objects would not be drawn with an outline in the Graph window when using the Quartz 2D graphics engine. This has been fixed. This bug did not affect EPS and PS files.
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23. The console version of Stata/MP for Intel-based Macs could not correctly determine whether an executable update was available. This has been fixed.
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24. The Do-file Editor will now treat a tab character as multiple spaces when printing a do-file. The Do-file Editor previously treated a tab character as one space when printing.
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25. Stata now creates the Stata license file as stata.lic instead of Stata.Lic after license initialization. This distinction allows Mac OS X systems using the UFS file system to read the license file because the UFS file system is case sensitive. The default file system for Mac OS X is HFS+ and is not case sensitive, and it will accept both stata.lic and Stata.Lic. Current Stata users who are using the UFS file system can simply rename the file Stata.Lic to stata.lic. Current Stata users who are using the HFS+ file system do not need to rename Stata.Lic to stata.lic.
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Stata executable, Unix (GUI)
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26. Clicking a link in the Results window to open a help file in the Viewer could cause Stata to crash. This has been fixed.
 
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