search

briatte / ggnet

Network visualization with ggplot2
https://briatte.github.io/ggnet/
194 stars 33 forks source link

Restriction on Edge Labels #21

Closed erdogancevher closed 7 years ago

erdogancevher commented 8 years ago

Edge labels are centered. Not possible to enter 2 edge labels on the same arrow. This is needed: For example, in Network Topology of causal relationships in a VAR model, it is customary to write the p values of the G-causalities on the same arrow; one is to indicate the GC from variable A to variable B, and the other is from variable B to variable A.

It seemed impossible to me to construct such a needed graph with ggnet.

Example (the graphs to be drawn Needed, but not Possible with ggnet) Figure 3 here: https://www.academia.edu/17057780/Determinants_of_Current_Account_Deficit_in_Turkey_The_Conditional_and_Partial_Granger_Causality_Approach

Note that 2 labels are needed (one at the beginning and the other at the end of the same arrow).

briatte commented 7 years ago

Hi @erdogancevher

You are correct, ggnet is not flexible enough to have two labels per edge, and it is unlikely that it will ever be.

However, perhaps you can get what you need by using ggnetwork instead, using the geom_edgetext and geom_edgelabel geometries together. Take a look at this vignette for examples of each geom.