Table 7 Calculating the amount of modeling error.

From: Simulation and modelling of heavy metals and water quality parameters in the river

Heavy metal

Type of relationship

AME

RSME

Pb

Linear

0.31

0.46

Logarithmic

1.8

3.7

Cd

Linear

0.24

0.42

Logarithmic

1.2

2.3

Zn

Linear

0.56

0.75

Logarithmic

2.8

4.8

  1. AME absolute mean error.
  2. RMSE root mean square error.