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Table 5 Parameter estimates (with standard errors in parentheses) for H1, H2 and H3 models applied in two examples.

From: Hyperbolastic growth models: theory and application

Model

Parameter

Polio Estimate

MTS Estimate

H1

M

41951.4 (603.8)

0.5633 (0.16)

 

β

3.9 × 10-5 (3.06 × 10-6

0.0395 (0.02)

 

θ

-2.6851 (0.29)

-0.2171 (0.05)

H2

M

41574.9 (670.6)

0.3360 (0.03)

 

β

2.9 × 10-6 (7.02 × 10-7)

1.9 × 10-5 (4.7 × 10-5)

 

γ

1.8865 (0.13)

2.6784 (0.55)

H3

M

41359.6 (817.5)

0.5871 (0.02)

 

β

4.11 × 10-6 (5.62 × 10-6)

0.0371 (0.01)

 

γ

6.18 (0.67)

0.8575 (0.05)

 

θ

-0.00065 (0.01)

-0.0256 (0.003)