我认为有一行代码可以评定学生的答案,但我无法完全找到答案。这里有三个问题和两个学生的例子。评分学生的考试
在此先感谢
#the correct answers
key = t(c(1,2,3))
#the student responses
responses = t(data.frame(c(1,2,3),c(1,3,3)))
colnames(responses) =c('v1','v2','v3')
rownames(responses) = c('student1', 'student2')
#the desired graded matrix
graded = t(data.frame(c(T,T,T),c(T,F,T)))
dimnames(graded) = dimnames(responses)
graded
如果你教CS,你可能会对https://cseducators.stackexchange.com/感兴趣(但由于它仍处于私人测试版,所以通过https://area51.stackexchange.com/proposals/92460/computer-science-educators进行最简单的输入) –