expression syntax

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Permalink Reply by Chris Tietjen on June 12, 2011 at 2:30pm

Chris

Attachments:

• IfaThenbcd.ghx, 93 KB

Permalink Reply by David Rutten on June 12, 2011 at 3:00pm

If(A < 500, b, If(A > 600, d, c))

 

It's not very clean, but for a three-way split it's not too bad. This expression works as follows:

 

If(A < 500, b, If(A > 600, d, c))

 

If A is larger than 600, then the result of the bold part is equal to d, otherwise the result is equal to c. Let's call this result c|d, meaning it's either c or d, depending on the value of A. We can now rewrite the original expression and simplify it:

 

If(A < 500, b, c|d)

 

This is just a single If...Then construction where the Then part is the already partially solved result.

 

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Chris Tietjen on June 12, 2011 at 6:51pm

In the original post, "if a between 500 and 600 then c",  I can't decide if that should be taken as 'inclusive', ie. 500<=a<=600, or 'exclusive', ie. 500<a<600, of the end points.  I'm tending to think it generally means exclusive but the more I think about the less clear it becomes. 

 

Chris

Permalink Reply by Michael Herbig on June 14, 2011 at 4:58am

thx,

 

that works fine :)

@chris: thx for the definition, i will try it also.