Add entropy_bits and reachable_outputs columns

README.md

@@ -37,6 +37,10 @@ dataset_info:
       dtype: float64
     - name: max_cycle
       dtype: int64
+    - name: entropy_bits
+      dtype: float64
+    - name: reachable_outputs
+      dtype: int64
   splits:
     - name: train
       num_examples: 38416
@@ -72,6 +76,8 @@ Exhaustive enumeration of all 1,679,616 programs of length 8 for every possible
 | coupling | str | Register coupling type: bidirectional, one-way, or none |
 | avg_cycle | float | Mean cycle length among non-halting programs |
 | max_cycle | int | Maximum cycle length among non-halting programs |
+| entropy_bits | float | Shannon entropy of the output distribution (bits) |
+| reachable_outputs | int | Number of distinct outputs produced by halting programs |
 
 ## Statistics
 
@@ -81,6 +87,9 @@ Exhaustive enumeration of all 1,679,616 programs of length 8 for every possible
 - Total programs executed: 64,527,984,256 (38,416 x 1,679,616)
 - Avg cycle length range: [23.4, 216.1] (mean 116.2)
 - Max cycle length: 255 for all ISAs
+- Output entropy range: [0.80, 5.44] bits (mean 2.50)
+- Reachable outputs: [9, 211] / 256 (mean 53.7)
+- Outputs reachable by ALL ISAs: 9
 
 ## Extremes
 

omega_tensor.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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-size 153654
+oid sha256:07208b99c3591c4c55940f011e32c8882cef6acefd8400543065cb849a0c5341
+size 173824