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Fig. 2 | BMC Medical Research Methodology

Fig. 2

From: Crowding in the emergency department in the absence of boarding – a transition regression model to predict departures and waiting time

Fig. 2

Diagnostics: Residuals against fitted values and QQ-plots of residual and theoretical quantiles. Stratified on shift and weekday/weekend. Residuals against fitted values plot: Linearity indicated by a symmetric distribution around zero with no trend. Homoscedasticity indicated by no trend in the vertical scatter. Independent errors indicated by lack of any pattern. QQ-plot: To check for normality

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