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小强爱英语 · 2023年06月07日

log odds 怎么翻译?

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NO.PZ202208220100000502

问题如下:

Identify which one of the following statements best describes the interpretation of an independent variable’s slope coefficient in a logistic regression model: “The slope coefficient is the change in the ___.”

选项:

A.log odds that the event happens per unit change in the independent variable,while all other independent variables increase by one unit

B.odds that the event happens per unit change in the independent variable,holding all other independent variables constant

C.log odds that the event happens per unit change in the independent variable,holding all other independent variables constant

解释:

C is correct. An independent variable’s slope coefficient in a logistic regression model is the change in the log odds that the event happens per unit change in the independent variable, holding all other independent variables constant.

题干中哪里体现了log的运算

1 个答案

袁园_品职助教 · 2023年06月08日

嗨,从没放弃的小努力你好:


只要是说logistic regression,表达式就是这个,然后里面的ln(P/(1-P))也就是这个y就是log odd.

我们一级里面学过odd就是优比/赔率(odds), E事件发生的优比(Odds for an event)=P/1-P。这里对这个赔率进行了ln,所以叫log odds.

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