WebbThe Randi´c index R(G) of a graph G = (V,E) is defined as follows: R(G) = X uv∈E 1 √ d ud v. Here d u and d v are the degrees of vertices u and v, respectively. From a mathematical … Webb17 apr. 2024 · The Rand index is a way to compare the similarity of results between two different clustering methods. Often denoted R, the Rand Index is calculated as: R = (a+b) / (nC2) where: a: The number of times a pair of elements belongs to the same cluster across two clustering methods.
Randi indices of different orders - CODESSA PRO
http://www.codessa-pro.com/descriptors/topo/rido.htm WebbKEY WORDS: Randi´c index, m-tree, lexicographic order 1. Introduction and terminology Molecular topology determines a large number of molecular properties, including not … gas media holdings
SOURCES AND METHODS CONSTRUCTION PRICE INDICES - OECD
WebbRandi 's molecular connectivity index. Randi indices of different orders. Balaban's J index. Kier and Hall valence connectivity indices. Kier shape indices. Kier flexibility index. Mean … Webb1 maj 2011 · In this paper, we investigate the zeroth-order general Randic index of conjugated bicyclic graphs (i.e., bicyclic graphs with perfect matchings). We characterized the conjugated bicyclic graphs with maximum and minimum R"@a^0 according to @a in different intervals. Webbrandi: This function is used to generate normally distributed pseudo-random values. randn: This function is used to generate normally distributed random values. randperm: This is used to create permuted random values. rng: This controls the random number generation. RandStream: This is used for the stream of random numbers. david dew horsley real estate