Use of dynamic arrays as stage variables

[kh]

Can I have a stage variable whose derivation returns a dynamic array? If so, how do I access the individual values of this array for subsequent derivations on the output links? I tried using stagevarname<n> with no luck.

[ray.wurlod]

Yes. A stage variable can contain any value, and a dynamic array is just a string with delimiter characters.

How you access the individual elements depends on the delimiter character used in constructing the dynamic array.

A generic solution is to use the Field() function.

Code: Select all

Field(stagevariable, delimiter, fieldnumber, fieldcount)

The delimiter can be a system variable, such as @FM or @VM. The fieldcount argument is optional, and defaults to 1.

It should also be possible to use dynamic array ("angle bracket") notation in derivations.

Code: Select all

stagevariable<2>
stagevariable<1,4>

These might cause the expression editor to leave your derivations red, if it doesn't understand the syntax, but the job will compile and execute satisfactorily.