本文整理匯總了Golang中github.com/sjwhitworth/golearn/base.Instances.GetClass方法的典型用法代碼示例。如果您正苦於以下問題：Golang Instances.GetClass方法的具體用法？Golang Instances.GetClass怎麽用？Golang Instances.GetClass使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/sjwhitworth/golearn/base.Instances的用法示例。
在下文中一共展示了Instances.GetClass方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: ChiMBuildFrequencyTable
func ChiMBuildFrequencyTable(attr int, inst *base.Instances) []*FrequencyTableEntry {
ret := make([]*FrequencyTableEntry, 0)
var attribute *base.FloatAttribute
attribute, ok := inst.GetAttr(attr).(*base.FloatAttribute)
if !ok {
panic("only use Chi-M on numeric stuff")
}
for i := 0; i < inst.Rows; i++ {
value := inst.Get(i, attr)
valueConv := attribute.GetUsrVal(value)
class := inst.GetClass(i)
// Search the frequency table for the value
found := false
for _, entry := range ret {
if entry.Value == valueConv {
found = true
entry.Frequency[class] += 1
}
}
if !found {
newEntry := &FrequencyTableEntry{
valueConv,
make(map[string]int),
}
newEntry.Frequency[class] = 1
ret = append(ret, newEntry)
}
}
return ret
}示例2: GetConfusionMatrix
// GetConfusionMatrix builds a ConfusionMatrix from a set of reference (`ref')
// and generate (`gen') Instances.
func GetConfusionMatrix(ref *base.Instances, gen *base.Instances) map[string]map[string]int {
if ref.Rows != gen.Rows {
panic("Row counts should match")
}
ret := make(map[string]map[string]int)
for i := 0; i < ref.Rows; i++ {
referenceClass := ref.GetClass(i)
predictedClass := gen.GetClass(i)
if _, ok := ret[referenceClass]; ok {
ret[referenceClass][predictedClass]++
} else {
ret[referenceClass] = make(map[string]int)
ret[referenceClass][predictedClass] = 1
}
}
return ret
}