CFSimpleIndexer.md

@@ -142,7 +142,7 @@ Finally, the values of `hpg::VisData<N>::m_cf_index` may be computed as in the f
   hpg::CellIndex cell_index(
     0,       // baseline type
     /*...*/, // time
-    W_0,     // w plane
+    0,       // w plane (in indexed subset of store)
     /*...*/, // frequency
     0        // mueller, not significant here, 0 is always valid
   );