Merge pull request #4950 from jakevdp/ls-zerodiv-err

BUG: fix integer roundoff corner case in Lomb-Scargle
astropy · May 20, 2016 · 8d56e05 · 8d56e05
2 parents 8818327 + 6a16f34
commit 8d56e05
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/astropy/stats/lombscargle/implementations/chi2_impl.py b/astropy/stats/lombscargle/implementations/chi2_impl.py
@@ -75,7 +75,7 @@ def compute_power(f):
     p = np.array([compute_power(f) for f in frequency])
 
     if normalization == 'psd':
-        p *= 0.5 * t.size / (dy ** -2).sum()
+        p *= 0.5 * t.size / (dy ** -2.0).sum()
     elif normalization == 'model':
         p /= (chi2_ref - p)
     elif normalization == 'log':