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12 Command file: Running the job 187High level qualifiersqualifieraction!DOPATH nThe qualifiers !DOPART and !PART have been extended in release2.0 and !DOPATH and !PATH are thought to be more appropriatenames. Both spellings can be used interchangably.!DOPATH allows several analyses to be coded and run sequentiallywithout having to edit the .as file between runs. Whichparticular lines in the .as file are honoured is controlled bythe argument n of the !DOPATH qualifier in conjunction with!PATH (or !PART) statements.New!PATH pathlistThe argument (n) is often given as $1 indicating that theactual path to use is specified as the first argument on thecommand line (see Section 12.4). See Sections 15.7 and 15.10for examples. The default value of n is 1.!DOPATH n can be located anywhere in the job but if placed onthe top job control line, it cannot have the form !DOPATH $1unless the arguments are on the command line as the !DOPATHqualifier will be parsed before any job arguments on the sameline are parsed.The !PATH (or !PART) control statement may list multiplepath numbers so that the following lines are honoured if anyone of the listed path numbers is active. The !PATH qualifiermust appear at the beginning of its own line after the !DOPATHqualifier. A sequence of path numbers can be written usinga : b notation. For examplemydata.asd !DOPATH 4!PATH 2 4 6:10One situation where this might be useful is where it is necessaryto run simpler models to get reasonable starting valuesfor more complex variance models. The more complex modelsare specified in later parts and the !CONTINUE commandis used to pick up the previous estimates.