TVectorD and TList

[nastein]

Hello, I’m trying to retrieve at TVectorD from a TList

But when I add the TVectorD to the TList, I do not know how to retrieve it as the TVectorD doesn’t have a title. I’m doing this essentially because I need be able to add doubles to a TList and TVector is a TObject which can be added to a TList.

Thanks!

[sbinet]

You can ask the retrieved object for its type, either using regular C++ dynamic_cast or using ROOT’s TClass IsA and checking whether the object’s type is indeed TVectorD.

HTH,
-s

[pcanal]

I need be able to add doubles to a TList and TVector is a TObject which can be added to a TList.

For singular double, you can also use TParameter.

Cheers,
Philippe.