Morgan B S, Norbury J
Demography. 1981 May;18(2):251-6.
The relationship between the index of residential differentiation (RDI), a recently introduced measure of residential segregation which is designed to summarize the distribution of c social groups in a single index, and the indices of dissimilarity (D) and segregation (SI) is examined. It is demonstrated that RDI is a natural extension of D, and that when c = 2, RDI = D; when c greater than 2, it is possible to stipulate RDI in terms of SI, but it is not possible to stipulate RDI in a straightforward manner in terms of D. An adjusted RDI is then suggested in which random segregation rather than complete desegregation is used as the baseline.
研究了居住分化指数（RDI）与差异指数（D）和隔离指数（SI）之间的关系。居住分化指数是最近引入的一种居住隔离度量指标，旨在用单一指数概括不同社会群体的分布情况。结果表明，RDI是D的自然扩展，当c = 2时，RDI = D；当c大于2时，可以根据SI来规定RDI，但无法直接根据D来规定RDI。随后提出了一种调整后的RDI，其中以随机隔离而非完全融合作为基线。
