1. How does the egen function handle the "by" part: . by var1: egen ... . bysort var1 (var2): egen ... i.e., where in the egen code, does it figure out that it needs to sort before doing a by operation etc (i.e. where does it figure out that it was supplied with -...
Web: What does the error r(?) mean when I try to connect to the Internet from within Stata? (Updated 27 July 2011) Programming language: Where is my personal ado directory? (Updated 27 July 2011) Programming language: Why don’t my community-contributed estimation commands work in Stata...
Stata does not care about end-of-line format, but some editors and other programs do. New command snapshot saves to disk and restores from disk copies of the data in memory. snapshot used by the new Data Editor. An important feature of the Data Editor is that it can log all the ...
This has been changed to N-round(mean(k1,k2,...)). (Stata website) xtgee, xtpois, xtprobit Estimation of the exchangeable working correlation parameter was incorrect in the presence of singletons — groups containing single observations. In the presence of singletons, the estimated working ...
Natural disasters and the research object may be difference or out of phase, which does not involve the vital interests of the research object. In addition, followed by the residents' quality of life, to a certain extent, residents' perception of climate change may reduce gradually. Hagen et ...