From d9d15fb735014c5c4ff4ca1ffa693290c00ef076 Mon Sep 17 00:00:00 2001
From: Clint Caywood <clint@clintcaywood.com>
Date: Sat, 24 Oct 2015 22:44:24 -0700
Subject: [PATCH] Fix breakage due to gonum/matrix mat64.ErrShape

---
 knn/knn.go                    | 3 ++-
 metrics/pairwise/chebyshev.go | 3 ++-
 metrics/pairwise/cranberra.go | 3 ++-
 metrics/pairwise/manhattan.go | 3 ++-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/knn/knn.go b/knn/knn.go
index fe69bbc..1770c0d 100644
--- a/knn/knn.go
+++ b/knn/knn.go
@@ -5,6 +5,7 @@ package knn
 
 import (
 	"fmt"
+	"github.com/gonum/matrix"
 	"github.com/gonum/matrix/mat64"
 	"github.com/sjwhitworth/golearn/base"
 	"github.com/sjwhitworth/golearn/metrics/pairwise"
@@ -235,7 +236,7 @@ func NewKnnRegressor(distfunc string) *KNNRegressor {
 
 func (KNN *KNNRegressor) Fit(values []float64, numbers []float64, rows int, cols int) {
 	if rows != len(values) {
-		panic(mat64.ErrShape)
+		panic(matrix.ErrShape)
 	}
 
 	KNN.Data = mat64.NewDense(rows, cols, numbers)
diff --git a/metrics/pairwise/chebyshev.go b/metrics/pairwise/chebyshev.go
index 86f5663..c169e83 100644
--- a/metrics/pairwise/chebyshev.go
+++ b/metrics/pairwise/chebyshev.go
@@ -3,6 +3,7 @@ package pairwise
 import (
 	"math"
 
+	"github.com/gonum/matrix"
 	"github.com/gonum/matrix/mat64"
 )
 
@@ -16,7 +17,7 @@ func (c *Chebyshev) Distance(vectorX *mat64.Dense, vectorY *mat64.Dense) float64
 	r1, c1 := vectorX.Dims()
 	r2, c2 := vectorY.Dims()
 	if r1 != r2 || c1 != c2 {
-		panic(mat64.ErrShape)
+		panic(matrix.ErrShape)
 	}
 
 	max := float64(0)
diff --git a/metrics/pairwise/cranberra.go b/metrics/pairwise/cranberra.go
index 09551de..06a99b4 100644
--- a/metrics/pairwise/cranberra.go
+++ b/metrics/pairwise/cranberra.go
@@ -3,6 +3,7 @@ package pairwise
 import (
 	"math"
 
+	"github.com/gonum/matrix"
 	"github.com/gonum/matrix/mat64"
 )
 
@@ -23,7 +24,7 @@ func (c *Cranberra) Distance(vectorX *mat64.Dense, vectorY *mat64.Dense) float64
 	r1, c1 := vectorX.Dims()
 	r2, c2 := vectorY.Dims()
 	if r1 != r2 || c1 != c2 {
-		panic(mat64.ErrShape)
+		panic(matrix.ErrShape)
 	}
 
 	sum := .0
diff --git a/metrics/pairwise/manhattan.go b/metrics/pairwise/manhattan.go
index 5664a9d..c9d3b75 100644
--- a/metrics/pairwise/manhattan.go
+++ b/metrics/pairwise/manhattan.go
@@ -3,6 +3,7 @@ package pairwise
 import (
 	"math"
 
+	"github.com/gonum/matrix"
 	"github.com/gonum/matrix/mat64"
 )
 
@@ -18,7 +19,7 @@ func (m *Manhattan) Distance(vectorX *mat64.Dense, vectorY *mat64.Dense) float64
 	r1, c1 := vectorX.Dims()
 	r2, c2 := vectorY.Dims()
 	if r1 != r2 || c1 != c2 {
-		panic(mat64.ErrShape)
+		panic(matrix.ErrShape)
 	}
 
 	result := .0