针对居民收入差距的统计分析问题,通过回归分析、正态性检验、boxcox变换等方法,运用Matlab、SPSS、Excel软件,建立了绝对收入差距模型、相对收入差距模型及人均收入模型,综合分析了我国居民收入差距状况及变化规律,得出我国居民收入差距较大并且有上升趋势的结论。并提出新的人均收入计算公式,使得达到人均收入的实际人群所占比例在60%以上。
In this paper , aiming at statistical analysis of the problem of income gap , an absolute income gap model, a relative income gap model and a per capital income model were established through regression analysis, normality test, boxcox transform methods, the use of Matlab, SPSS, and Excellsoftware.The income gap and its variation rule of the residents in our country were comprehensively analyzed .Some conclusions were drawn that income gap in China is large and there is a rising trend .A new formula on per capita income , which made the proportion of the population whose income up to per capital income above 60%, was also proposed .