入境粮食中8种主要感官指标的统计分析研究

Statistical analysis study of 8 kinds of sensory indexes in the entry grain

在研究入境粮食主要感官指标的过程中,SPSS具有较强的适用性。文章以宁波口岸入境大麦中感官指标的研究为例,详细介绍了SPSS在统计学描述、正态分布检验、回归和相关分析、聚类分析和因子分析等方面的应用。分析结果表明:根据抽样样本,进境大麦中8种主要感官指标多数趋于或接近正态分布特征,异常值在加拿大麦指标中明显,水分与蛋白质、发芽率和容重相关成都较高,同时根据因子综合得分对麦种进行了分类,为境外大麦的进口和合理利用提供了一定的参考。

In the process of study sensory indexes in entry grains, SPSS has strong applicability. Based on the study of the sensory indexes in barleys in Ningbo port as an example, introduces the application of SPSS in statis- tical description, normal distribution test, regression and correlation analysis, cluster analysis and factor analysis in detail. The analysis results show that most of 8 kinds of sensory indexes in the imported barleys are accord with normal distribution characteristics, and the abnormal value in barleys is relatively concentrated to Canada, the de- gree of correlation between moisture and other indexes （germination,protein and test weight）is higher, at the same time, the barleys are classified according to the factor comprehensive scores , it provides a certain reference for the import barleys and rational utilization.