DOC: BUG: Correct formulas in spatial.distance. Closes scipy#1391.

oesteban · Feb 27, 2011 · 35fe2e4 · 35fe2e4
1 parent 5149470
commit 35fe2e4
Showing 1 changed file with 8 additions and 8 deletions.
diff --git a/scipy/spatial/distance.py b/scipy/spatial/distance.py
@@ -271,8 +271,8 @@ def cosine(u, v):
 
     .. math::
 
-       \frac{1-uv^T}
-            {||u||_2 ||v||_2}.
+       1 - \frac{uv^T}
+                {||u||_2 ||v||_2}.
 
     Parameters
     ----------
@@ -298,8 +298,8 @@ def correlation(u, v):
 
     .. math::
 
-       \frac{1 - (u - \bar{u}){(v - \bar{v})}^T}
-            {{||(u - \bar{u})||}_2 {||(v - \bar{v})||}_2^T}
+       1 - frac{(u - \bar{u}){(v - \bar{v})}^T}
+               {{||(u - \bar{u})||}_2 {||(v - \bar{v})||}_2^T}
 
     where :math:`\bar{u}` is the mean of a vectors elements and ``n``
     is the common dimensionality of ``u`` and ``v``.
@@ -905,8 +905,8 @@ def pdist(X, metric='euclidean', p=2, w=None, V=None, VI=None):
 
        .. math::
 
-          \frac{1 - uv^T}
-               {{|u|}_2 {|v|}_2}
+          1 - \frac{uv^T}
+                   {{|u|}_2 {|v|}_2}
 
        where |*|_2 is the 2 norm of its argument *.
 
@@ -916,8 +916,8 @@ def pdist(X, metric='euclidean', p=2, w=None, V=None, VI=None):
 
        .. math::
 
-          \frac{1 - (u - \bar{u})(v - \bar{v})^T}
-               {{|(u - \bar{u})|}{|(v - \bar{v})|}^T}
+          1 - \frac{(u - \bar{u})(v - \bar{v})^T}
+                   {{|(u - \bar{u})|}{|(v - \bar{v})|}^T}
 
        where :math:`\bar{v}` is the mean of the elements of vector v.