如何访问sklearn中的朴素贝叶斯模型参数（条件概率表）

Question

我们知道朴素贝叶斯模型从数据中学习其条件条件表的参数。我试图找出如何在sklearn中访问此类表。我可以给你建议吗？

Answer 1

您可以获得每个条件（特征，类别）的条件对数概率和出现次数。

基于documentation的示例：

public boolean isValidAlternativeSelection (int[] alternativesSelected) {
    boolean allOK = true;
    int nPaths= myAlternativePaths.size();
    for (int i=0; i<nPaths; i++) {
        allOK=allOK & (alternativesSelected[i]<myAlternativePaths.get(i).myAlternativeRoutes.size());
    }
    return allOK;
}


public boolean getNextValidAlternativeSelection (int[] alternativesSelected) {
    boolean allOK = true;
    int nPaths= myAlternativePaths.size();
    alternativesSelected[0]=alternativesSelected[0]+1;
    for (int i=0; i<nPaths; i++) {
        if (alternativesSelected[i]>=myAlternativePaths.get(i).myAlternativeRoutes.size()) {
            alternativesSelected[i]=0;
            if(i<nPaths-1) {
                alternativesSelected[i+1]=alternativesSelected[i+1]+1;
            } else {
                allOK = false;
            }
        }
 //       allOK=allOK & (alternativesSelected[i]<myAlternativePaths.get(i).myAlternativeRoutes.size());
    }
    return allOK;
}