Weighted Sum of squared residuals

The sum of squared residuals gives a measure of the deviation of the observed size values from that predicted by the selected model; it is calculated using:

where n is the number of observations.

If standard deviations (SD) have been given for the mean size at age, then the weighted sum of residuals is calculated using:

See also

Akaike Information Criterion (AIC)

Schwarz Criterion (SC)