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→经过Kass调整（Bonferroni界调整）的对数价值准则
<math>
<math>
m=\left\{\begin{array}{ll} C_{L-1}^{B-1} \mbox{ , when X is Ordinal/Interval} & \\
m=\left\{\begin{array}{ll} C_{L-1}^{B-1} \mbox{ , 当 X 是顺序/间隔} & \\
S(L,B) \mbox{ , when X is Nominal} & \end{array}\right.
S(L,B) \mbox{ , 当X为名义值时} & \end{array}\right.
</math>
</math>
<math>\Delta Gini=0.197, \Delta H=0.504, \mbox{Logworth}=140, m=96, \mbox{Adjusted Logworth}=138</math>
<math>\Delta Gini=0.197, \Delta H=0.504, \mbox{Logworth}=140, m=96, \mbox{Adjusted Logworth}=138</math>
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===回归树损失函数===
===回归树损失函数===