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随着中国经济的深入发展,缩小城乡居民收入差距已经成为政府部门和社会各界人士关注的焦点,对该问题的深入研究也一直是学术界的热门话题。基于城镇居民人均可支配收入和农村居民家庭人均纯收入两个指标,本文根据2013年《中国城市统计年鉴》[1]中的统计数据,运用非参数核密度估计的方法对2003年及2012年的数据进行分析。在分析过程中,先用EXCEL软件对原始数据进行描述性统计分析,再利用R统计分析软件,进行非参数核密度估计,并对得到的结果进行进一步的对比分析。
With the further development of China’s economy, narrowing the income gap between urban and rural residents has become the focus of attention of government departments and people from all walks of life. An in-depth study on this issue has also been a hot topic in academia. Based on the two indicators of the per capita disposable income of urban residents and the per capita net income of rural households, based on the statistical data in China’s Urban Statistical Yearbook 2013 [1] and using the method of non-parametric kernel density estimation for 2003 and 2012 Data analysis. In the process of analysis, the original data were descriptively analyzed by EXCEL software, then the R statistical analysis software was used to estimate the non-parametric kernel density, and the results were further compared and analyzed.