surrealpatch/util/math/top.go

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// Copyright © 2016 Abcum Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package math
func Top(vals []float64, take int) []float64 {
var out []float64
if len(vals) == 0 {
return nil
}
sort := Sort(vals)
for i := 0; i < take && i < len(vals); i++ {
out = append(out, sort[len(vals)-1-i])
}
return out
}