The Analyze Arbor widget shows different statistics on whole neurons and different parts of them. Its working set of skeletons is shown in the table at the top, which skeletons can be added to or removed from through the source selector and buttons like Append in the widget toolbar, like it is the case with many widgets.

This table is divided into information on four different views on a neuron, which are determined by CATMAID automatically by assuming the root node of a skeleton is at its soma and the end of visible microtubules are marked using the microtubules end tag. The neuron's axonic and dendritic parts are determined using flow centrality (FC). If no axon terminals can be determined through synapse clustering and FC, dendrites will be considered everything not part of the backbone (see below):

1. Arbor: this is the entire skeleton
2. Backbone: all nodes reachable from the root node until a "microtubules end" tag is found
3. Dendrites: the dendritic nodes according to FC, usually most of inputs. If FC finds no cut, dendrites will be all nodes not in backbone
4. Axon terminals: the axon as determined by FC, usually most outputs. If FC finds no cut, no axon terminals will be analyzed explicitly.

For each of those a set of statistics is listed:

1. Cable (nm):: the total length of the respective part, Gaussian smoothed with a sigma of 200 nm
2. Inputs: the number of postsynaptic sites
3. Outputs: the number of presynaptic sites
4. Time (min): the number of minutes in which nodes have been created in this part
5. Mitochondria: The number of nodes tagged with "mitochondrium" in this part

The second part of the widget visualizes various histograms and statistics for each part.