{smcl} {* 27september2002}{...} {hline} help for {hi:qsim} {hline} {title:Automation for clarify} {p 8 16}{cmd:qsim}, [{cmdab:c:ommand(}{it:string asis)} {cmd:setx2(}{it:setx list} {cmd:by(}{it:xi variable} ] {title:Description} {p}{cmd:qsim} provides a wrapper for the {cmd: clarify} series of program that automates simulation with dummy variables produced by Stata's {cmd:xi} prefix. If xi: variables are not used, the automation process works without them. {title:Remarks} {p}Without {cmd:qsim} each of the 3 {cmd:clarify} programs has to be run separately for each level of the xi: categorical variable. {cmd:qsim} can be placed into one or more {cmd:foreach} loops and a large series of simulations can be run at one time. {p} The output can be pasted into a text editor. Marking {cmd:E(} identifies the line with the simulation data output. This line then can be cut to Excel (or similar programs) to make an output table. The whole process takes less than a minute. {p} The {cmd:levels} module of Nicholas J. Cox (available from the Boston College archives) is required to run {cmd:qsim} and is installed as part of this package. {title:Options} {p}{cmd:setx2()} expects the appropriate {cmd:clarify setx} commands. The contents of {cmdab:c:ommand} must be put in quotations. {p}{cmd:by()} expects one xi: variable. If left blank the programs runs as if there were no xi: variable. Do not enter the xi: variable in the {cmd:setx2()} option. {title:Examples} {p 4 8}{inp:. qsim, c("reg euroutil age sex white ra i.edcat") setx2(age 55 sex 1) by(edcat)} {p_end} {p 4 8}{input:. qsim, c("reg euroutil age sex white ra i.edcat") setx2(age 55)} {p_end} {title:Author} Fred Wolfe, National Data Bank for Rheumatic Diseases, Wichita, KS fwolfe@arthritis-research.org {title:Also see} {p 0 19}On-line help: {help clarify}, {help estsimp}, {help setx}, {help simqi}, if installed. {p_end}