Fitting gastric emptying curves
Analyze data
Method
nlme population fit
Bayesian Stan fit
Curves analyzed as
linexp (with overshoot)
powexp (without overshoot)
Variant
1: v0 + tempt + kappa
2: pdDiag(v0 + tempt + kappa)
3: v0 + tempt
Model name
No covariance
With covariance
LKJ
Student df
Expert Mode
Simulated data
Preset
nice linexp MRI
difficult MRI
nice powexp scintigraphy
nice linexp MRI, high kappa
nice powexp scint, high beta
rough linexp MRI
rough powexp scint
rough linexp MRI with missing
rough powexp scint, with missing
few moderate outlier linexp MRI
Manual settings
# records
Seed
Data generated as
linexp (with overshoot)
powexp (without overshoot)
v0
Mean
Std (%)
tempt
beta/
kappa
Noise type/outliers
Gauss
weak (Student-7)
some (Student-5)
heavy (Student-3)
Noise %
Missing %
github source code
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