摘要
利用多元统计中的主成分分析研究学生成绩,发现第一主成分排序与学分绩排序结果基本相同,提出用第一主成分代替学分绩对学生进行综合评价更加合理.而且主成分还能反映教学过程中的优点和不足.对教学有一定的指导意义.
The Principal component analysis is used to study the students＇ achievement. We find that the first principal component ordering and credit hour ordering are similar. It is proposed to replace the credit hour with the first principal component that would be more reasonable. Furthermore the principal components can also reflect the merit and problem in teaching and studying. It also has a certain guidance to teaching.
出处
《大学数学》
北大核心
2007年第1期32-37,共6页
College Mathematics
关键词
第一主成分
学分绩
排序
成绩
the first principal component
credit hour
ordering
achievement
