read.neurons.catmaid could include annotation info

[jefferis]

For example if there were multiple matching annotations, each neuron could be tagged with the (first) matching annotation.

[jefferis]

Or the neuronlist could have the annotations as an attribute. The minimum is that there should be an example showing how to use this.

[jefferis]

see catmaid_get_annotations_for_skeletons and #38

[jefferis]

Question is where to put this. Probably best to add as list of annotations as a column to main data.frame. Could separately add catmaid_get_annotations_for_skeletons data.frame as another attribute. But might need to add a helper function to look for tag. neuron_tag? Perhaps also a point_tag could be another addition?

[jefferis]

putting the annotations in a column of the data.frame then causes problems when you try use

nl[,]

or

write.csv(as.data.frame(nl))

So I am thinking that maybe the approach of providing a helper function might work best.

[jefferis]

I think the tags info should probably not be directly in the data.frame so edb516f needs to be rolled back.

[jefferis]

Eventually opted to include this as a separate data.frame since that seemed the most lightweight approach.