02-27-2014 06:00 PM
There are sevaral procedures that use the concept. Basically it allows one call to manuipulate, for example the labels of one data set in a library and then the formats associated with different dataset in the same library. So you "run" the section of labels then the formats. The run statement then says to do the instructions llisted above for the specified data set(s). The quit says to end the procedure.
In some of the graphic and modeling procedures the concept allows generating multiple outputs without having to reload data into memory.