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我試圖在R中找到具有支持向量機的新輸入向量的類概率。 訓練模型不會顯示錯誤。必須包含支持向量機中R的所有因子的數據集R
fit <-svm(device~.,data=dataframetrain,
kernel="polynomial",probability=TRUE)
但是預測一些輸入向量會顯示一些錯誤。
predict(fit,dataframetest,probability=prob)
Error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) :
contrasts can be applied only to factors with 2 or more levels
dataframetrain樣子:
> str(dataframetrain)
'data.frame': 24577 obs. of 5 variables:
$ device : Factor w/ 3 levels "mob","pc","tab": 1 1 1 1 1 1 1 1 1 1 ...
$ geslacht : Factor w/ 2 levels "M","V": 1 1 1 1 1 1 1 1 1 1 ...
$ leeftijd : num 77 67 67 66 64 64 63 61 61 58 ...
$ invultijd: num 12 12 12 12 12 12 12 12 12 12 ...
$ type : Factor w/ 8 levels "A","B","C","D",..: 5 5 5 5 5 5 5 5 5 5 ...
和dataframetest樣子:
> str(dataframetest)
'data.frame': 8 obs. of 4 variables:
$ geslacht : Factor w/ 1 level "M": 1 1 1 1 1 1 1 1
$ leeftijd : num 20 60 30 25 36 52 145 25
$ invultijd: num 6 12 2 5 6 8 69 7
$ type : Factor w/ 8 levels "A","B","C","D",..: 1 2 3 4 5 6 7 8
我訓練的模型2個因素 'geslacht' 但有時我只預測數據1個因素「geslacht」。 也許可能只用1個因子'geslacht'來測試類概率?
我希望有人能幫助我!
謝謝!它工作完美:D – karmabob