Getting unique words from a macro

[Konrad Zdeb]

I have a local macro with a list of words, I would like to filter it so I can get only unique words.

local mylist variableA variableA variableA variableB variableB
do something to `mylist'
di "`mylist'"
variableA variableB

[Nick Cox]

local mylist variableA variableA variableA variableB variableB
local uniqlist : list uniq mylist

mac li
<stuff omitted> 
_uniqlist:      variableA variableB
_mylist:        variableA variableA variableA variableB variableB

Big tip: For tools like this, start with help macro.

[Konrad Zdeb]

Big tip: For tools like this, start with help macro.

Thanks for the code, it worked like a charm. With respect to this help section, I did have a look but I find it rather synoptic.

[Sarah Edgington]

You have to keep clicking to dig deeper with the macro help.
help macrolists will get you to info on the trick Nick used here.
Most of what I routinely use with macros is summarized well if you click on the extended_fcn link in the main macro help. To get to this you have to click one more time to get to the full information on manipulating lists.