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update to fix data race #39

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update to fix data race #39

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9 changes: 8 additions & 1 deletion training/model.go
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Original file line number Diff line number Diff line change
@@ -1,21 +1,28 @@
package training

import "math/rand"
import (
"math/rand"
"sync"
)

// Example is an input-target pair
type Example struct {
Input []float64
Response []float64
}

var mu sync.Mutex

// Examples is a set of input-output pairs
type Examples []Example

// Shuffle shuffles slice in-place
func (e Examples) Shuffle() {
for i := range e {
mu.Lock()
j := rand.Intn(i + 1)
e[i], e[j] = e[j], e[i]
mu.Unlock()
}
}

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