Fig. 2
From: Dynamic updating of clinical survival prediction models in a changing environment
Illustration of the dynamic updating and evaluation process. Beginning at the top left, an original model was fit to the development dataset and evaluated out-of-sample on the Q1 new data. The model was then updated each quarter with new data and evaluated on the subsequent quarter’s data. These updates are called Update 1, 2, 3 and 4 where update u was performed using data from Quarter u. A colour version of this figure can be found in the electronic version of the article