That worked but I had to use:
data = Array(Element, 2)
Thanks for the info!
On Sunday, February 1, 2015 at 8:57:23 PM UTC+11, Milan Bouchet-Valat wrote:
>
> Le dimanche 01 février 2015 à 01:24 -0800, alex codoreanu a écrit :
> > Thanks Milan,
> >
> >
> > I defined Element as you suggested and created
> >
> >
> > data=(Element, 2)
> What is this line supposed to do? All it does now is assign a tuple
> containing the Element type, and the integer value 2.
>
> If you want to create an Element instance, you should do e.g.:
> element = Element("a name", [1, 2], [2, 3])
>
> and then to create a list holding two Elements, and fill the first value
> with the just created element:
> data = Vector(Element, 2)
> data[1] = element
>
> Accessing members:
> data[1].lambda
>
>
> Regards
>
>
> > but
> >
> >
> > julia> data[1].lambda=[1., 2.0]
> >
> > ERROR: type DataType has no field lambda
> >
> >
> >
> > Now that I have the structure data how do I access the branch members?
> >
> >
> >
> >
> > On Sunday, February 1, 2015 at 8:07:51 PM UTC+11, Milan Bouchet-Valat
> > wrote:
> > Le dimanche 01 février 2015 à 00:35 -0800, alex codoreanu a
> > écrit :
> > > Hi all,
> > >
> > >
> > > I'm a new Julia user and I'm starting to write a high-level
> > multi data
> > > type fits file reader and writer akin to IDL's
> > mwrfits/mrdfits. I got
> > > most of the dynamics figured out by I can't quite make a
> > custom
> > > structure. For example, I would like something like:
> > >
> > >
> > > element = {name::string, lambda::[float_array, 5000
> > elements],
> > > flux::[float_array, 5000 elements]}
> > >
> > >
> > > structure = replicate(element, 500)
> > >
> > >
> > > where structure inherits the members of element and can be
> > called,
> > >
> > >
> > > structure[1].name = the name of element 1
> > > strucutre[1].lambda[1] = the first lambda element of the
> > first
> > > structure
> > Looks like a composite type would work:
> >
> > type Element
> > name::UTF8String
> > lambda::Vector{Float64}
> > flux::Vector{Float64}
> > end
> >
> >
> >
> > Regards
> >
>
>
