Applied grey relational grade in recreation participation for the students in vocational schools

At present, people tend to do recreation without limitation on age. Although recreation can only be done while job finished, which recreation is most suitable for people still remain uncertain. Hence, we focus on this field and based on experts´ experiences, we use a questionnaire to obtain the leisure participation grade of vocational school students. The contents of the questionnaire include 24 items, and the returned questionnaires are 620. In our study, we desert traditional method, and present the globalization relational grade in grey system theory to analyze the whole data. Since the returned 620 documents are too huge to analyze by using traditional computer toolbox, we also developed a Matlab toolbox for our need. As a result, we can divide the inspected items into three parts, and all are matched with our real original thoughts. Then we can derive a new approach in this filed from the paper, and extend it into other relative fields.