41 lines
885 B
Go
41 lines
885 B
Go
// Copyright © 2016 SurrealDB Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package math
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import "math"
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func Spread(vals []float64) float64 {
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var min, max float64
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switch len(vals) {
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case 0:
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return math.NaN()
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case 1:
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return 0
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}
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for _, v := range vals {
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switch {
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case v < min:
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min = v
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case v > max:
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max = v
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}
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}
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return (max - min) - 1
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}
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