An exploratory analysis was performed, trends of both delays were studied, and 36 months forecasts were generated. We used the permutation test to test differences between groups and the Seasonal and Trend decomposition using Loess (STL) method and Autoregressive Integrated Moving Average (ARIMA) models for forecasting for both Health and Patient delays. We used data from notified PTB cases in mainland Portugal...
Fractional regression models are effective when the variable of interest appears in the form of proportion or fraction or rate. In other words, use of fractional regression models becomes appropriate when the dependent variable is defined only on the standard unit interval. This paper surveys fractional regression models, and studies efficiency scores of manufacturing firms of Portugal, Greece, France, and Germ...
Quando a variável dependente num modelo econométrico tem uma natureza fraccionária, correspondendo a uma proporção ou taxa, o modelo de regressão linear não é a forma mais indicada de modelar essa variável. Em vez disso, deve usar-se o chamado modelo de regressão para dados fraccionários, o qual tem em conta a natureza proporcional e limitada da variável dependente. Esta dissertação descreve as principais carac...