DOC: remove obsolete NA reference from polyfit docs

6 files changed, 0 insertions, 30 deletions

diff --git a/numpy/polynomial/chebyshev.py b/numpy/polynomial/chebyshev.py
index 6a2394382..b8303ef43 100644
--- a/numpy/polynomial/chebyshev.py
+++ b/numpy/polynomial/chebyshev.py
@@ -1607,11 +1607,6 @@ def chebfit(x, y, deg, rcond=None, full=False, w=None):
 
     where `n` is `deg`.
 
-    Since numpy version 1.7.0, chebfit also supports NA. If any of the
-    elements of `x`, `y`, or `w` are NA, then the corresponding rows of the
-    linear least squares problem (see Notes) are set to 0. If `y` is 2-D,
-    then an NA in any row of `y` invalidates that whole row.
-
     Parameters
     ----------
     x : array_like, shape (M,)
diff --git a/numpy/polynomial/hermite.py b/numpy/polynomial/hermite.py
index 4140acfb7..3db5e364d 100644
--- a/numpy/polynomial/hermite.py
+++ b/numpy/polynomial/hermite.py
@@ -1379,11 +1379,6 @@ def hermfit(x, y, deg, rcond=None, full=False, w=None):
 
     where `n` is `deg`.
 
-    Since numpy version 1.7.0, hermfit also supports NA. If any of the
-    elements of `x`, `y`, or `w` are NA, then the corresponding rows of the
-    linear least squares problem (see Notes) are set to 0. If `y` is 2-D,
-    then an NA in any row of `y` invalidates that whole row.
-
     Parameters
     ----------
     x : array_like, shape (M,)
diff --git a/numpy/polynomial/hermite_e.py b/numpy/polynomial/hermite_e.py
index 735ca9470..99f29a892 100644
--- a/numpy/polynomial/hermite_e.py
+++ b/numpy/polynomial/hermite_e.py
@@ -1375,11 +1375,6 @@ def hermefit(x, y, deg, rcond=None, full=False, w=None):
 
     where `n` is `deg`.
 
-    Since numpy version 1.7.0, hermefit also supports NA. If any of the
-    elements of `x`, `y`, or `w` are NA, then the corresponding rows of the
-    linear least squares problem (see Notes) are set to 0. If `y` is 2-D,
-    then an NA in any row of `y` invalidates that whole row.
-
     Parameters
     ----------
     x : array_like, shape (M,)
diff --git a/numpy/polynomial/laguerre.py b/numpy/polynomial/laguerre.py
index b7ffe9b0c..e88f2b07b 100644
--- a/numpy/polynomial/laguerre.py
+++ b/numpy/polynomial/laguerre.py
@@ -1378,11 +1378,6 @@ def lagfit(x, y, deg, rcond=None, full=False, w=None):
 
     where `n` is `deg`.
 
-    Since numpy version 1.7.0, lagfit also supports NA. If any of the
-    elements of `x`, `y`, or `w` are NA, then the corresponding rows of the
-    linear least squares problem (see Notes) are set to 0. If `y` is 2-D,
-    then an NA in any row of `y` invalidates that whole row.
-
     Parameters
     ----------
     x : array_like, shape (M,)
diff --git a/numpy/polynomial/legendre.py b/numpy/polynomial/legendre.py
index 8d89c8412..c4ce0ddde 100644
--- a/numpy/polynomial/legendre.py
+++ b/numpy/polynomial/legendre.py
@@ -1408,11 +1408,6 @@ def legfit(x, y, deg, rcond=None, full=False, w=None):
 
     where `n` is `deg`.
 
-    Since numpy version 1.7.0, legfit also supports NA. If any of the
-    elements of `x`, `y`, or `w` are NA, then the corresponding rows of the
-    linear least squares problem (see Notes) are set to 0. If `y` is 2-D,
-    then an NA in any row of `y` invalidates that whole row.
-
     Parameters
     ----------
     x : array_like, shape (M,)
diff --git a/numpy/polynomial/polynomial.py b/numpy/polynomial/polynomial.py
index c30fc6d0c..ca0784ba6 100644
--- a/numpy/polynomial/polynomial.py
+++ b/numpy/polynomial/polynomial.py
@@ -1207,11 +1207,6 @@ def polyfit(x, y, deg, rcond=None, full=False, w=None):
 
     where `n` is `deg`.
 
-    Since numpy version 1.7.0, polyfit also supports NA. If any of the
-    elements of `x`, `y`, or `w` are NA, then the corresponding rows of the
-    linear least squares problem (see Notes) are set to 0. If `y` is 2-D,
-    then an NA in any row of `y` invalidates that whole row.
-
     Parameters
     ----------
     x : array_like, shape (`M`,)