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. 2023 Mar 2;21(3):e07866. doi: 10.2903/j.efsa.2023.7866
Model Number of parameters Formula
Null 1
y=a
Full no. of groups
y=group mean
Exp model 3 3
y=a·expbxd
Exp model 4 4
y=a·cc1expbxd
Hill model 3 3
y=a·1xdbd+xd
Hill model 4 4
y=a·1c1·xdbd+xd
Inverse Exponential 4
y=a·1+c1expbxd
Log‐Normal Family 4
y=a·1+c1Φlnb+dlnx