fixed dependencies

vendor/gonum.org/v1/gonum/stat/distmv/distmv.go

@@ -0,0 +1,28 @@
+// Copyright ©2015 The Gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package distmv
+
+const (
+	badQuantile      = "distmv: quantile not between 0 and 1"
+	badOutputLen     = "distmv: output slice is not nil or the correct length"
+	badInputLength   = "distmv: input slice length mismatch"
+	badSizeMismatch  = "distmv: size mismatch"
+	badZeroDimension = "distmv: zero dimensional input"
+	nonPosDimension  = "distmv: non-positive dimension input"
+)
+
+const logTwoPi = 1.8378770664093454835606594728112352797227949472755668
+
+// reuseAs returns a slice of length n. If len(dst) is n, dst is returned,
+// otherwise dst must be nil or reuseAs will panic.
+func reuseAs(dst []float64, n int) []float64 {
+	if dst == nil {
+		dst = make([]float64, n)
+	}
+	if len(dst) != n {
+		panic(badOutputLen)
+	}
+	return dst
+}