In the example "Fit a One-Compartment Model to an Individual's PK Profile" for the function sbiofit (the example is found in the sbiofit help page), an initial dose of 10 milligram is used:
dose = sbiodose('dose');
dose.TargetName = 'Drug_Central';
dose.StartTime = 0;
dose.Amount = 10;
dose.AmountUnits = 'milligram';
dose.TimeUnits = 'hour';
I just wonder where that value is coming from as it seems I cannot find it anywhere in the example. Should it be also a value that needs to be estimated, or it is a value that needs to be known from experimental/synthetic data?