Giuseppe,
I'm not completely sure of what you are asking. In the upcoming 0.14, I
have added the ability to create a complex object containing sub-elements
that are accessed using .property syntax. I wouldn't recommend trying to
use that until I release 0.14 though :>
Any 'complex' data variable is copied and stored by reference. Strings
and numbers are not complex; and so they just make copies of the values,
but lists are. So, if you make a copy of a list, and use SetElement to
change the list, it will get changed and any variable referring to it will
see the change.
define Start(p)
{
parameters <- ["one","two","three"]
parameterscopy <- parameters
##Right now, both refer to the same list object
SetElement(parameters,1,"uno")
SetElement(parameterscopy,2,"due")
Print(parameters)
Print(parameterscopy)
}
You will find that the same list ("uno, duo, three") prints out in both
cases. This will work even if the list is only a single element long.
However, you need to use SetElement to make this work.... doing:
parameterscopy <- ["one","two","three"]
will have no impact on the parameters variable.
Best,
Shane
> Dear Shane
> how can a make a true new variable of a complex data type, for which <-
> is just the pointer to the same variable.
>
> Thank you in advance and best regards,
> --
> Giuseppe Cabras, PhD - Chemistry, Physics and Environment Dept.
> InterUniversity Center for Behavioral Neurosciences http://icbn.uniud.it
> University of Udine - via delle Scienze, 206 - 33100 UDINE
> Phone: +39-043255-8212 - Fax: +39-043255-8222
> SMS: http://www.fisica.uniud.it/cabras/SMS.html
> URL: http://people.uniud.it/page/giuseppe.cabras
>
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