Creating a list of lists

[Mor Zahavi]

Hi,


I am trying to create a list of variable names.
Since I have a lot of variables I have created groups of small number of variables.

My aim is to use the whole list or subgroups of it as a list of variable names in various commands.

For example - lets say I have 100 variables, I created 10 local macros with each containing 10 variable names:

---

local list1 “var1 var2 … var10”
local list2 “var11 var12 … var20”
…
local list10 “var91 var92 … var100”

—

I now wish to recall all variables without listing all locals and with the option of retrieving subgroups of the list.
for example (this code won't work obviously):

---

local listx “list1-list10”

and

local listy "list1-list4"

—


How can I do this?

Thanks

Mor

[Nick Cox]

Sometimes using all variables is just the default any way

summarize 

list 

edit

and many other times you don't need this because * or _all gives you all variables

If you want this for real (tell us why) then

unab all : *

is one way to do it.

[Mor Zahavi]

I don't need this for all variables. I think you got me wrong.
I want to be able to use a loop with subsets of variable names.
What I essentially seek is for a way to create a list of lists.
Although I have seen some of your replies to similar questions, none of them involved creating a macro of strings from locals that are themselves a string.

just for clarification:

I have -

local vargroup1 "var1 var2"
local vargroup2 "var3 var4"
local vargroup3 "var5 var6"

and want a local that contains all variables or some of them without having to write this:

local vars "vargroup1 vargroup2 vargroup3"

but instead something like:

local vars "vargroup*"

or better yet:

local vars "vargroup1-vargroup3"

which allows for more flexibility in choosing the subset of variables I need each time.

Thanks ahead,

Mor

[Nick Cox]

I now wish to recall all variables

is what you said.

Although I have seen some of your replies to similar questions, none of them involved creating a macro of strings from locals that are themselves a string.

it's a bit risky to assert that none of my posts apply to your question.

Given ten lists in local macros you can do things like this

forval j = 1/10 {
      foreach v of var `list`j'' {
            ....
      }
}

I hope that you don't literally work with names like var1 to var100!

[Mor Zahavi]

Apologies for the poor phrasing.
It is indeed risky but I meant to say I read before posting.

this seems to be what I look for, but can you help me in creating a single macro which would contain the final list of variable names?

(My variables have much worse names than var1 var2)