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Table 5 Coefficients of fixed-effects survival model

From: Evaluation of different approaches to individual tree growth and survival modelling using data collected at irregular intervals – a case study for Pinus patula in Kenya

Predictor Modelling approach
Regression 1 Regression 2 Optimization
Constant 7.83597 6.36929 11.31540
ln(d) 1.54649 3.41518 2.94256
d –0.02158 –0.10010 –0.07065
ln(T) –3.14473 –4.13006 –5.06713
DOM 1.32723 1.41859 0.92033
Step –0.21552
  1. d = diameter at breast height; T = stand age; DOM = dominance; Step = length of the projection period.