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Two-Stage Estimation of Non-Recursive Choice Models
Two-Stage Estimation of Non-Recursive Choice Models

The Practical Implementation of Bayesian Model Selection
The Practical Implementation of Bayesian Model Selection

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Quantitative Methods
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... Most commonly, with all other variables held constant, there is a constant increase of b1 in the logit (p) for every 1-unit increase in x1. But remember that even though the right hand side of the model is linearly related to the logit (that is, to the natural log of the odds-ratio), what does it me ...
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... observation’s Y given the new observation’s X with 95% probability. • Approximately 95% of observations Yi are within 2 RMSEs of their predicted value Eˆ (Y | X  X i ) given their X • Cautions in Interpreting Regression: – Prediction intervals for X values outside the range of the observed X variab ...
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Data assimilation

Data assimilation is the process by which observations are incorporated into a computer model of a real system. Applications of data assimilation arise in many fields of geosciences, perhaps most importantly in weather forecasting and hydrology. The most commonly used form of data assimilation proceeds by analysis cycles. In each analysis cycle, observations of the current (and possibly past) state of a system are combined with the results from a numerical model (the forecast) to produce an analysis, which is considered as 'the best' estimate of the current state of the system. This is called the analysis step. Essentially, the analysis step tries to balance the uncertainty in the data and in the forecast. The result may be the best estimate of the physical system, but it may not the best estimate of the model's incomplete representation of that system, so some filtering may be required. The model is then advanced in time and its result becomes the forecast in the next analysis cycle. As an alternative to analysis cycles, data assimilation can proceed by some sort of nudging process, where the model equations themselves are modified to add terms that continuously push the model towards observations.
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