topic Re: What's wrong with below code in Discussions

What's wrong with below code

jerryspilTC — Wed, 08 Jan 2020 12:37:14 GMT

I've got errors on below code:

dt << New Column( "Stage",
	If( Formula( Substr( :Column 9, 1, 2 ) ) == "CP",
		Formula( Left( :Column 9, 3 ) ),
		" "
	)
);

I want to add a new Col named "Stage" besides a raw Column 9, if starts with CP get the 1st 3 letters else blank, but I've got errors

Unexpected end of input. Perhaps there is a missing "," or ")".
Trying to parse arguments of function "New Column".
Line 207 Column 3: ►

I suspect I use Formula in wrong way, might need help here :)

Column 9	Stage
NG
CP2-NAVI12	CP2
CP1-NAVI12	CP1
NG
CP2-NAVI12	CP2

Re: What's wrong with below code

txnelson — Wed, 08 Jan 2020 11:01:20 GMT

The issue with your code is that you are not understanding the Formula element from the New Column function. You seem to be approaching the problem thinking that each segment within your line of script that has a function, such as Substr() or Left() needs to be told that it is a formula. Actually, the entire line of jsl:

If( Substr( :Column 9, 1, 2 ) == "CP", Left( :Column 9, 3 ), "" )

is what needs to be declared as the formula for the new column. Thus the New Column() function needs to be specified as:

dt << New Column( "Stage",
		Character,
		"Nominal",
		Formula( If( Substr( :Column 9, 1, 2 ) == "CP", Left( :Column 9, 3 ), "" ) )
	);

Re: What's wrong with below code

jerryspilTC — Thu, 09 Jan 2020 00:42:23 GMT

Thanks Jim, Got it :)