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Good graphs make complex problems clear. From the weather forecast to the Dow Jones average, graphs are so ubiquitous today that it is hard to imagine a world without them. Yet they are a modern invention. This book is the first to comprehensively plot humankind's fascinating efforts to visualize data, from a key seventeenth-century precursor--England's plague-driven initiative to register vital statistics--right up to the latest advances. In a highly readable, richly illustrated story of invention and inventor that mixes science and politics, intrigue and scandal, revolution and shopping

This article describes a generalization to a model of recidivism proposed earlier by Maltz and McCleary (1977). This modification allows the model to better fit data on recidivism that the earlier authors presented. The mathematical and logical derivation of the new model are presented as are two methods of parameter estimation. The efficacy of the model is demonstrated on Taylor's (1971) data set and is compared with earlier efforts. It is found that the old model's fit is more than 16 times worse than that ofthe new model.