topic Re: expression in QlikView

expression

raadwiptec — Wed, 25 Nov 2020 16:16:04 GMT

i need to write and expression for the following below..

I have the following columns in my source.

Invoice type

Location

Price

i need an expression for the following condition

invoice type should be 100,101,105,107,109,190 plus if location is null --invoice type should be 200 and 201 , then output should be Prices * -1

Re: expression

Gysbert_Wassenaar — Fri, 12 Aug 2016 09:03:31 GMT

Something like this maybe:

LOAD

[Invoice type],

Location,

If(Match([Invoice type],'100','101','105','107','109','190') or (Match([Invoice type],'200','201') and Len(Trim(Location))=0), -Price, Price) as Price

FROM

...source...

;

Re: expression

raadwiptec — Fri, 12 Aug 2016 09:06:01 GMT

Hi Gysbert,

Can you give me in expression ?

Re: expression

raadwiptec — Fri, 12 Aug 2016 09:07:25 GMT

and secondly invoice type 200 and 201 should be considered only when location is empty

Re: expression

Gysbert_Wassenaar — Fri, 12 Aug 2016 09:21:13 GMT

If you don't like the expression I posted please explain what expression you want instead.

Re: expression

raadwiptec — Fri, 12 Aug 2016 09:26:06 GMT

hi gysbert

Iam looking an expression for the front end and not at the script level.. secondly as said invoice type 200 and 201 should be considered only when location is empty

Re: expression

Gysbert_Wassenaar — Fri, 12 Aug 2016 09:33:57 GMT

Well, I think you should fix this in the script, but the expressions works just as well in a chart.

Re: expression

raadwiptec — Fri, 12 Aug 2016 09:37:48 GMT

can you provide me both?

Re: expression

Gysbert_Wassenaar — Fri, 12 Aug 2016 09:47:19 GMT

If(Match([Invoice type],'100','101','105','107','109','190') or (Match([Invoice type],'200','201') and Len(Trim(Location))=0), -Price, Price)

Re: expression

raadwiptec — Fri, 12 Aug 2016 12:26:14 GMT

hi gybert this is not correct..invoice type 200 and 201 should be considered only when location is empty and price should price * -1

Re: expression

Gysbert_Wassenaar — Fri, 12 Aug 2016 12:30:25 GMT

Looks correct to me. Point out the error please.

Re: expression

raadwiptec — Fri, 12 Aug 2016 12:38:58 GMT

how is this condition getting fulfilled?

invoice type 200 and 201 should be considered only when location is empty and output is price * -1

Re: expression

Gysbert_Wassenaar — Fri, 12 Aug 2016 12:43:21 GMT

Just to make sure we both understand boolean logic the same way perhaps you should Google for "boolean and operator" to find out what an and does between two conditions.

Re: expression

r3iuk — Fri, 12 Aug 2016 13:41:19 GMT

Gysbert's answer is correct according to my interpretation of your requirement. However it can be tricky sometimes to read complex if statements when they are written on one line so I often break them up into separate lines to check they are constructed in the way that I want them to be. So Gysbert's statement can be written as:

if(

Match([Invoice type],'100','101','105','107','109','190')

(

Match([Invoice type],'200','201')

and

Len(Trim(Location))=0

-1,

) * Price

You could write a more long winded version which you may or may find more understandable, but I would stick with Gysbert:

if(

Match([Invoice type],'100','101','105','107','109','190'),

-1,

if(

Match([Invoice type],'200','201')

and

Len(Trim(Location))=0,

-1,

)

) * Price

Re: expression

raadwiptec — Tue, 16 Aug 2016 13:49:00 GMT

Hi Mike .Gybs

Indeed both looks same, other than the -1 and the -Price at the end..

thanks both