[Aavso-photometry] Transforms: what about VERR?

[George Silvis]

When you transform your VMAG information, what should you do with 
VERR? Is it unchanged by the transform? Or should it reflect the 
uncertainty of the transform coefficients? Suggestions?

I have put together an application to apply transform coefficients ( 
it is available to all at http://www.gasilvis.net/transformer/ ). 
Right now it does not modify the VERR, but it would be good to do the 
right thing.

Thanks
George
SGEO