Looking to automate a process and coming at problem from two methods, looking for guidance:

[#1]

Hi all, I'm running a script that takes a column from a data table and summarises it like so:

names default to here(1);
dt = Current Data Table();

fails = dt << Summary(Group( :Test_Name ),Freq( "None" ),Weight( "None" ),Output Table( "Tests that have Failed" ));

The general method in our process is to select a row in the table created:

There can be any number of rows in this first summary table shown above so it needs to be implemented using a for loop to remain general. When doing manually, I select one of the rows in this summary column, return to the original table, right click "selected" in the bottom corner and then click "data view" like below

then apply this script to it: 

names default to here(1);
dt = Current Data Table();

dt << text to columns( delimiter( ":" ), columns( :Test_Result ) );
dt << Summary(Group( :Test_Result 2 ),Freq( "None" ),Weight( "None" ),Output Table( "Patterns to Keep" ));

I have tried doing in another way:

I am trying to access each element in the test_name column of the summary table in a for loop, trying to select the elements equal to the test_name selected by the for loop in the original table and creating a subset table from that, then summarising that but the debugger isn't being verbose enough to see the issue:

names default to here(1);
dt = Current Data Table();
fails = dt << Summary(Group( :Test_Name ),Freq( "None" ),Weight( "None" ),Output Table( "Tests that have Failed" ));
testlist={};
For( i = 1, i <= Nrows(fails), i++, test=Column(fails,i);
tab= dt << select where(contains(:Test_Name,test));
For( i = 1, i <= Nrows(fails), i++,
		tab << Summary(Group( :Test_Result 2 ),Freq( "None" ),Weight( "None" ),Output Table( "Patterns to Keep" ));

	

Any guidance on either how to piece together my first attempt or to correct the issue with my second would be much appreciated!

[#2]

I would solve the issue by just adding a BY() variable to your second Summary

tab << Summary(Group( :Test_Result 2 ),Freq( "None" ),Weight( "None" ),Output Table( "Patterns to Keep" ),
	by( :Test_Name )
);