how to delete miss data in table automatic？

TONYMA

dear： I have a problem that  everyday i update data and usually find some miss data in data table，so i want to delete them automaticly。

I worte JSL as below ，but it did not work。 where is wrong？ 

dt = Open( "C:\Users\wty\Desktop\Big Class.jmp" ); dt=Data Table( "Big Class" ) << Missing Data Pattern( columns( :age ), Output Table( "Missing Data" )); dt=Data Table("Missing Data")<< Subset(selectd Rows() ); dt<<delete selectd rows

Script.jsl

Big Class.jmp

gzmorgan0

Try this

	dt = Open( "C:\Users\wty\Desktop\Big Class.jmp" ); 
	dt = Data Table( "Big Class" ) ; //not required 
	idx = dt<< get rows where( Is Missing(:age ) );
	dt << delete rows( idx );