Vl set

[Harry O'Rahilly]

Hello fellow STATA users

I am using STATA version 15.1

I would like to create a create a specialized variable list for use as independent variables for an estimation command, see page 5 of the link below.

https://www.stata.com/manuals/dvl.pdf

This is possible with the VL commands:

vl create power = (gear_ratio displacement weight)

I wish to run commands using foreach, original code:

{
foreach v of varlist myvar1 myvar2 [..] myvarN
[..]
}

and rather than list each var I wish to abbreviate by creating a specialized variable list, i.e.

vl create myvarlist= (myvar1 myvar2 [..] myvarN)
{
foreach v of varlist myvarlist
[..]
}

To use the VL suite of commands I may need to upgrade to the latest version of STATA.

Would you be able to suggest please an alternative method possible with STATA 15.1 to create a specialized variable list, or is a version upgrade required?

Thank you.
Harry