On Fri, 15 Feb 2013, Pindar wrote:

in terms of the bundle problem I was not concrete enough.
I'm using the current snapshot and still get a crash with:

<hansl>
bundle b = null
b["foo"] = 1
# open bundle via gui in symbol window
bundle b = null
# close bundle via gui -> crash
<hansl>

OK, now I see what you mean. Fixed in CVS.

I have another question concerning loops: I want to use the @ functionality 
for changing the looped through lists.
This is not working as expected. I need it for e.g. trivariate interaction:

<hansl>
open chard.gdt

loop for i=2..4 -q
   string listName = "inter$i"
   list @listName = null
endloop

inter2 = 1
inter3 = 3 4
inter4 = 5

loop for i=2..4 -q
   string listName = "inter$i"
   loop foreach j @listName -q
       print j
       print "$j"
       eval varname(@listName)
   endloop
endloop
<hansl>

This is a rather tricksy use of double string substitution: 
when the inner loop is set up is hard for gretl to know what 
"@listName" is, or will be. However, if we guess it ought to 
evaluate to a string that gives the name of a list, then 
things will go as you intend in this case. The following now 
works in CVS:

<hansl>
open data4-10.gdt

list L1 = 1
list L2 = 3 4
list L3 = 5

loop i=1..3 -q
    string listName = "L$i"
    printf "i = %d: listName = '%s'\n", i, listName
    loop foreach j @listName -q
        printf "  j = %d and dollar-j = '$j'\n", j
    endloop
endloop
</hansl>

Allin Cottrell
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