37 lines
916 B
Go
37 lines
916 B
Go
package main
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import (
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"fmt"
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"math"
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"sort"
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)
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func fivenum(a []float64) (n5 [5]float64) {
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sort.Float64s(a)
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n := float64(len(a))
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n4 := float64((len(a)+3)/2) / 2
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d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n}
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for e, de := range d {
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floor := int(de - 1)
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ceil := int(math.Ceil(de - 1))
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n5[e] = .5 * (a[floor] + a[ceil])
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}
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return
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}
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var (
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x1 = []float64{36, 40, 7, 39, 41, 15}
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x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43}
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x3 = []float64{
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0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594,
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0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772,
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0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469,
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0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578,
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}
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)
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func main() {
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fmt.Println(fivenum(x1))
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fmt.Println(fivenum(x2))
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fmt.Println(fivenum(x3))
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}
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