Prepare for v0.5.0

bjodah · Feb 7, 2017 · 1e77350 · 1e77350
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diff --git a/CHANGES.rst b/CHANGES.rst
@@ -1,5 +1,5 @@
-unreleased
-==========
+v0.5.0
+======
 - ``.electrochemistry.nernst_formula`` - thanks to Adel Qalieh (@adelq)
 - moved ``.util.parsing.number_to_scientific_*`` to ``.printing(.numbers)``
 - Number formating now handles uncertainties.

diff --git a/chempy/util/regression.py b/chempy/util/regression.py
@@ -193,7 +193,7 @@ def least_squares(x, y, w=1): # w == 1 => OLS, w != 1 => WLS
 
  """
  sqrtw = np.sqrt(w)
- Y = y * sqrtw
+ Y = np.asarray(y, dtype=np.float64) * sqrtw
  _x = np.asarray(x)
  X = np.ones((_x.size, 2))
  X[:, 1] = x