Interpolation is only quadratic and cubic

pages/interpolations.rst

@@ -12,18 +12,8 @@ Interpolations
 Interpolations need the `scipy python module <http://www.scipy.org/>`_.
 To enable it just specify the interpolation type to:
 
-- linear
-- nearest
-- zero
-- slinear
 - quadratic
 - cubic
-- krogh
-- barycentric
-- univariate
-- or an integer representing the order of the spline interpolator
-
-For more info see `interp1d definition on scipy <http://docs.scipy.org/doc/scipy/reference/generated/scipy.interpolate.interp1d.html#scipy.interpolate.interp1d>`_
 
 
 Without interpolation:
@@ -53,7 +43,7 @@ With krogh interpolation:
 
 .. pygal-code::
 
-  chart = pygal.Line(interpolate='krogh')
+  chart = pygal.Line(interpolate='quadratic')
   chart.add('line', [1, 5, 17, 12, 5, 10])
 
 
@@ -67,12 +57,12 @@ You can change the resolution of the interpolation with the help of `interpolati
 
 .. pygal-code::
 
-  chart = pygal.Line(interpolate='krogh', interpolation_precision=15)
+  chart = pygal.Line(interpolate='quadratic')
   chart.add('line', [1, 5, 17, 12, 5, 10])
 
 .. pygal-code::
 
-  chart = pygal.Line(interpolate='krogh', interpolation_precision=50)
+  chart = pygal.Line(interpolate='quadratic', interpolation_precision=50)
   chart.add('line', [1, 5, 17, 12, 5, 10])