Question

在R中使用aov（）函数时，我没有得到F统计量或p值。（我看了t his question，但我使用的是单向设计，所以答案不适用。）

自变量是＆＃34;老师＆＃34;因变量是＆＃34;得分。＆＃34;我已经从下面复制了我的代码，并随机抽取了数据。

teacher <- c("B","C", "B", "A", "A", "B", "A", "D", "B", "C",
             "D", "C", "B", "C", "C", "B", "C", "B", "B", "D", "A", "A", "C", "A", "D")

score <- c(10,13,13,7,7,4,7,10,3,13,11,17,14,11,13,8,15,13,8,9,8,12,10,5,11)

mydata <- data.frame(teacher,score)

aov(score~teacher, data = mydata)

结果如下：

Call:
   aov(formula = score ~ teacher, data = mydata)

Terms:
                 teacher Residuals
Sum of Squares  108.0245  183.8155
Deg. of Freedom        3        21

Residual standard error: 2.958567
Estimated effects may be unbalanced

所以我的问题是：为什么我没有获得F统计/ p值？我如何获得这些值？

Answer 1

p值在摘要中。如果您尝试：

摘要（aov（得分〜老师，数据= mydata））

你会得到：

            Df Sum Sq Mean Sq F value Pr(>F)  
teacher      3  108.0   36.01   4.114 0.0192 *
Residuals   21  183.8    8.75                 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

R中的aov：没有显示F统计量

1 个答案: