From 89b5b43d1f00a087527ca267b32ea7bdb8579aa5 Mon Sep 17 00:00:00 2001
From: rnhmjoj <rnhmjoj@inventati.org>
Date: Sun, 18 Mar 2018 18:00:18 +0000
Subject: [PATCH] fix type error

---
 optics/light.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/optics/light.py b/optics/light.py
index 6d59547..515ed57 100644
--- a/optics/light.py
+++ b/optics/light.py
@@ -129,7 +129,7 @@ x = np.linspace(ds.min-1e-3, ds.max+1e-3, 300)
 gauss = mlab.normpdf(x, ds.mean, ds.std)
 
 # χ² test
-O, B, _ = plt.hist(ds, bins=6, normed=1, facecolor='#506d72')
+O, B, _ = plt.hist(np.asarray(ds), bins=6, normed=1, facecolor='#506d72')
 alpha   = chi_squared(ds, O, B)
 print('''
 # Δs histogram