From 91a814d56daf3c644fcfa1256361f9212a8bd5eb Mon Sep 17 00:00:00 2001
From: Dev <dev@solve.poker>
Date: Sun, 2 Nov 2025 15:55:55 +1100
Subject: [PATCH] add praser example of new emd data

---
 cross_validation/emd.py | 52 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 cross_validation/emd.py

diff --git a/cross_validation/emd.py b/cross_validation/emd.py
new file mode 100644
index 0000000..bb56c0d
--- /dev/null
+++ b/cross_validation/emd.py
@@ -0,0 +1,52 @@
+import math
+
+import numpy as np
+from pathlib import Path
+
+CARD_BITS = 6
+RANKS = "23456789TJQKA"
+SUITS = "shdc"
+
+
+def load_np(filename):
+    return np.load((Path(__file__).parent.parent / "ehs-data" / filename).resolve())
+
+
+np_river = load_np("sd_river_ehs.np")
+np_turn = load_np("sd_turn_hist.np")
+np_flop = load_np("sd_flop_hist.np")
+
+
+def to_card(i):
+    return f"{RANKS[math.floor(i / 4)]}{SUITS[i % 4]}"
+
+
+def to_cards(value, n):
+    return [to_card((value >> (i * CARD_BITS)) & 0x3F) for i in range(n)]
+
+
+N_ROWS = 1
+
+print("\nflop data: # bins 465")
+for row in np_flop[0:N_ROWS]:
+    print("-----")
+    print(row)
+    print(f"board: {to_cards(row['board'], 3)}")
+    print(f"player: {to_cards(row['player'], 2)}")
+    print(f"bins: {row['bins']}")
+
+print("\nturn data: # bins 30")
+for row in np_turn[0:N_ROWS]:
+    print("-----")
+    print(row)
+    print(f"board: {to_cards(row['board'], 3)}")
+    print(f"player: {to_cards(row['player'], 2)}")
+    print(f"bins: {row['bins']}")
+
+print("\nriver data: 0-29 (winrate: (ehs+1) * 1/30)")
+for row in np_river[0:N_ROWS]:
+    print("-----")
+    print(row)
+    print(f"board: {to_cards(row['board'], 3)}")
+    print(f"player: {to_cards(row['player'], 2)}")
+    print(f"wins: {row['ehs']}")