China-A Dataset, County-Level Units 1990

The ChinaA Datasets combine the raw geographical units and the essential county-level unit variables used for Skinner's 1990 China Regional Systems analysis. ChinaA MQ Dataset is composed of the ChinaA MQ (Merged Qu) geographic units that have been joined to tabular data compiled from the 1990 Census variables. ChinaA AVARS Dataset containst the analytical variables, based on various calculations using the raw census variables. Related Tables: Six tables (one for each of the GIS data layers) are included in this dataset. Note th at the tables contain 3,725 rows, while the GIS layers contain only 2,434 Merged Qu geographic units. The greater number of rows in the tables are due to the way in which the Merged Qu were combined from other units. In other words, the table will contain all the Qu (urban district) units for a particular city, but the Skinner analysis subsequently merged some or all of these into a single aggregate, both in terms of data values and in terms of the area to which the aggregated values relate to in geographic space. Variables: the variables published here are a later revision of the ChinaA dataset published previously (in 1995) as CITAS County-level Units 1990. Note that the variables have in some cases been RENUMBERED, so that they no longer match those found in the CITAS version, as documented here: http://citas.csde.washington.edu/data/chinaA/gswa.htm Be sure to verify the written definition for analytical variables in the Codebook, and especially the original operands, (such as a624/a602) in the Raw Variables, to make sure that you are using the correct units and rates of measure. Codebook: ChinaA_code_manual_20120615.pdf

ChinaA数据集整合了斯金纳（Skinner）1990年中国区域系统分析所需的原始地理单元与核心县级单元变量。ChinaA MQ数据集由ChinaA MQ（合并街区（Merged Qu））地理单元构成，该类单元已与基于1990年人口普查变量汇编的表格数据完成关联。ChinaA AVARS数据集包含基于原始普查变量经各类计算得到的分析变量。相关附表：本数据集包含6张表格，分别对应每一个地理信息系统（Geographic Information System，简称GIS）数据图层。注：表格共计3725行，而GIS图层仅包含2434个合并街区地理单元。表格行数更多的原因在于合并街区的构建方式：其由其他单元合并而来。换言之，单张表格会涵盖特定城市的全部街区（urban district）单元，但斯金纳的分析后续会将其中部分或全部单元合并为一个聚合单元，无论从数据值维度还是聚合值在地理空间中对应的区域维度而言均是如此。变量：此处发布的变量是此前1995年以CITAS县级单元1990（CITAS County-level Units 1990）为名发布的ChinaA数据集的修订版本。注：部分变量已重新编号，因此与CITAS版本中的变量不再一致，相关说明可参见：http://citas.csde.washington.edu/data/chinaA/gswa.htm。请务必核对代码手册中分析变量的书面定义，尤其是原始变量中的运算项（例如a624/a602），以确保使用了正确的度量单元与比率。代码手册：ChinaA_code_manual_20120615.pdf