add a hint on multiplexer

1 files changed, 5 insertions, 0 deletions

diff --git a/src/statistics/trackers.rs b/src/statistics/trackers.rs
index 44b2f97..7b16fce 100644
--- a/src/statistics/trackers.rs
+++ b/src/statistics/trackers.rs
@@ -9,6 +9,11 @@
 //! doesn't matter what you track, it doesn't matter how many trackers you
 //! define.
 //!
+//! If you want to track stats separated by player or phases, consider writing
+//! your tracker in a way that it only tracks statistics for a single player,
+//! and then use a [`Multiplexer`](struct.Multiplexer.html) to automatically
+//! track it for every player/agent.
+//!
 //! You can use [`run_trackers`](../fn.run_trackers.html) to run multiple
 //! trackers on the same log.
 use std::collections::HashMap;