求助SAS/ETS中的一个问题

shiyiming

data uscpi ;
input date:monyy. cpi @@;
format date monyy. ;
cards ;
jun90 129.9 jul90 130.4 aug90 131.6
sep90 132.7 oct90 133.5 nov90 133.8
dec90 133.8 jan91 134.5 feb91 134.8
jun91 136.0 jul91 136.2
;
proc forecast data =uscpi interval =month lead=12 out=foreout outfull outresid ;
var cpi ;
id date ;
run ;
proc print data=foreout ;
run ;
在这个程序中interval =month lead=12 out=foreout outfull outresid 这个语句是什么意思呀?

shiyiming

告诉你要预测未来十二个月的数据

shiyiming

同感