This refers to the term collection commonly used in async_build_markets.py and async_find_opportunities.py.
Collection: the group of exchanges which share a common market.
For example, the collection for the Gulden versus Bitcoin (NLG/BTC) market is comprised of the following exchanges:
- Bittrex
- Bleutrade
- CoinExchange
Singularly Available Market: A market which is only traded on one exchange. Examples are:
- Bytecent vs Bitcoin (BYC/BTC, traded only on Bittrex)
- Mineum vs Dogecoin (MNM/DOGE, traded only on Cryptopia)
In a multigraph, all edges between two vertices A and B form an edge bunch.
Note: In a multidigraph, an edge bunch is all edges between two vertices A and B which point in the same direction.