因子分析和灰色关联分析在股票综合评价上的应用

本文主要针对公司常见重要财务指标采用因子分析和灰色关联分析进行综合评价,并将评价结果进行对比验证,体现了因子分析和灰色关联分析在股票分析中的重要性,从而为投资者的股票选择提供重要决策依据。

来宾经济发展在广西区内的多指标计量分析

为了研究广西来宾经济发展新动能情况,该文选择2020年广西区内14个地市科技发展与创新、农业农村、人民生活等多个指标,主要从一般公共财政预算收入(亿元)、税收收入、国内增值税等方面来构建广西经济发展新动能研究体系,并对来宾与广西区内市经济发展进行综合分析及评价。立足于广西经济发展新动能现状,计量学方法构建新动能研究模型,提出促进来宾经济发展新动能和经济社会发展的政策建议,为政府进行科学决策和宏观管理提供可参考的有效依据。

“雨课堂”在物理化学教学中的应用评价

选取某个班级46名学生的课堂练习X_(1)、预习情况X_(2)、考勤情况X_(3)、课堂表现情况X_(4)、课后作业完成情况X_(5)作为分析样本,采用灰色因子分析对学生的课堂练习、预习情况、考勤情况、课堂表现情况、课后作业完成情况方面来构建教学情况的评价体系的分析,构建基于“雨课堂”的教学质量评价研究模型,对教育教学评价的研究体系进行计量分析,具有一定的理论意义和实践价值。

上海文化创意产业发展的影响因素实证研究——基于灰色关联度模型分析

本文运用灰色关联模型实证分析上海文化创意产业增加值与相关的30个不同指标之间的关联度,运用灰色因子分析法探索影响上海文化创意产业发展的主要影响因素。研究发现科技研发、政策与政府资金支持、人才资源、社会文化与文化消费环境、文化产业基础及发展状况等因素对上海文化创意产业发展具有重要影响。根据研究结果,提出发展上海文化创意产业的对策建议。

Response of Ecosystem Service Value Based on Land Use Changes and Analysis of its Driving Factors in Typical Hilly Region with Red Soil

The contribution rate of ecosystem service value variation was used to analyze the effects of land use changes on the changes of ecosystem service value in Xingguo County during 1996-2005.Grey integrated correlation was employed to explore the contribution level of the indicators such as total population,urbanization level,proportion of primary industry and investment of social fixed assets on ecosystem service value,and the correlation analysis was also carried out.The results showed that the ecosystem service value in Xingguo County during 1996-2005 mainly was woodland,and the decrease of woodland area was the major reason for the sustained reduction of ecosystem service value.With the further increase of market demand and the incentives of local government,the garden area rapidly increased during 2001-2005,and the influence degree of garden towards the changes of ecosystem service value was only second to woodland,ranking No.2.Four socio-economic indicators had different correlation degree with ecosystem service value during the different research periods.Total population,urbanization level and proportion of primary industry had high correlation degree with ecosystem service value,whereas the influence degree of various socio-economic indicators on ecosystem service value was equal with each other day by day.Urbanization level,investment of social fixed assets and total population had significant negative correlation with ecosystem service value,while the proportion of primary industry had positive correlation with ecosystem service value.