breathtestcore - Core Functions to Read and Fit 13c Time Series from Breath Tests
Reads several formats of 13C data (IRIS/Wagner, BreathID) and CSV. Creates artificial sample data for testing. Fits Maes/Ghoos, Bluck-Coward self-correcting formula using 'nls', 'nlme'. Methods to fit breath test curves with Bayesian Stan methods are refactored to package 'breathteststan'. For a Shiny GUI, see package 'dmenne/breathtestshiny' on github.
Last updated 10 months ago
13cbreathbreath-testgastroenterologymedicalstan
5.53 score 2 stars 1 packages 57 scripts 429 downloadsgastempt - Analyzing Gastric Emptying from MRI or Scintigraphy
Fits gastric emptying time series from MRI or 'scintigraphic' measurements using nonlinear mixed-model population fits with 'nlme' and Bayesian methods with Stan; computes derived parameters such as t50 and AUC.
Last updated 20 days ago
5.18 score 3 stars 17 scripts 317 downloadsbreathteststan - Stan-Based Fit to Gastric Emptying Curves
Stan-based curve-fitting function for use with package 'breathtestcore' by the same author. Stan functions are refactored here for easier testing.
Last updated 10 months ago
bayesian-methodsfittingmedicalnonlinearstan
3.48 score 3 stars 9 scripts 428 downloads