topic Re: How to use 'IF' statements to delete the entire 'Row'? in Discussions

How to use 'IF' statements to delete the entire 'Row'?

Danial — Fri, 09 Jun 2023 23:40:14 GMT

How to delete the entire 'Row' when the cell is blank/empty ?

Re: How to use 'IF' statements to delete the entire 'Row'?

Danial — Fri, 09 Oct 2020 21:46:53 GMT

This is an example of the a data table to my problem Operation Product Link Quantity 1 A ABC 1000 1 A ABC 3000 1 A 1350 1 A 1235

Re: How to use 'IF' statements to delete the entire 'Row'?

txnelson — Sat, 10 Oct 2020 01:53:05 GMT

There is no need to use an IF() clause in the deleting of the rows with missing values.

// If checking for a character column
dt << delete rows(dt<<get rows where(:link==""));

// If checking for a numeric column
dt << delete rows(dt<<get rows where(isMissing(:Quantity)));

Re: How to use 'IF' statements to delete the entire 'Row'?

JLX — Sat, 10 Oct 2020 03:04:18 GMT

YEAH, I agree with @txnelson , if you really wanna do this by using if, you can do like below

Names Default To Here( 1 );
dt = Open( "$sample_data/big class.jmp" );

total_rows = N Row( dt );

For( i = total_rows, i >= 1, i--,
	If( :age[i] == 14,
		dt << delete rows( i );
		wait(0.5) // wait for a while to let you see the delete action
	)
);

Re: How to use 'IF' statements to delete the entire 'Row'?

ThuongLe — Sat, 10 Oct 2020 05:07:03 GMT

or you can do this:

Names Default To Here( 1 );
dt = Open( "$sample_data/big class.jmp" );

dt << Select Where(Is Missing(:column_you_want_to_check));
dt << Delete Rows;

Re: How to use 'IF' statements to delete the entire 'Row'?

Danial — Sat, 10 Oct 2020 13:42:54 GMT

Thank you so much. Thanks for clearing things up