X-Git-Url: https://git.njae.me.uk/?a=blobdiff_plain;f=norms.py;h=eb436c3b8163141a3ada1f1f02f8be741d6f47fb;hb=533fd44ecc7048fa6480b1f6f4488088b3399abc;hp=66452940c376658e446bb704c7198ee1ace2be22;hpb=f8f68f294a4d226bc249a067c0a22ffca502f240;p=cipher-training.git

diff --git a/norms.py b/norms.py
index 6645294..eb436c3 100644
--- a/norms.py
+++ b/norms.py
@@ -178,7 +178,7 @@ def cosine_similarity(frequencies1, frequencies2):
     for k in frequencies1:
         numerator += frequencies1[k] * frequencies2[k]
         length1 += frequencies1[k]**2
-    for k in frequencies2.keys():
+    for k in frequencies2:
         length2 += frequencies2[k]**2
     return numerator / (length1 ** 0.5 * length2 ** 0.5)