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All functions

AIC(<breathtestnlmefit>)
S3 AIC method for breathtestnlmefit
augment(<breathtestfit>)
Augmented prediction for breathtest fit
breathtest_data()
Data structure with PDR data and descriptors for breath test records
breathtest_read_function()
Snoop method to read breath test file
btcore_file()
Path to example breath test data file
cleanup_data()
Transforms 13C breath data into a clean format for fitting
coef(<breathtestfit>)
S3 coef and summary for breathtestfit
coef_by_group()
Tabulates per-group breath test parameters
coef_diff_by_group()
Tabulates breath test parameter differences of groups
cum_exp_beta()
Cumulative exponential beta function
dob_to_pdr()
Convert breath test DOB data to PDR data
exp_beta()
Exponential beta function for 13C breath data
extract_id()
Extracts an ID from string IRIS CSV file
nlme_fit()
Mixed-model nlme fit to 13C Breath Data
nls_fit()
Individual curve fit with nls to 13C breath test data
null_fit()
Convert data to class breathtestfit
plot(<breathtestfit>)
S3 plot method for breathtestfit
read_any_breathtest()
Read breathtest files of any format
read_breathid()
Read BreathID file
read_breathid_xml()
Read new BreathID/Examens XML file
read_breathtest_excel()
Reads breathtest data in Excel format
read_iris()
Read 13C data from IRIS/Wagner Analysen
read_iris_csv()
Read 13C data from IRIS/Wagner Analysen in CSV Format
sigma(<breathtestnlmefit>)
S3 method to extract the fit's residual standard deviation
simulate_breathtest_data()
Simulate 13C breath time series data
subsample_data()
Decimate densely sampled 13C time series
t50_bluck_coward()
Bluck-Coward self-corrected half-emptying time
t50_maes_ghoos()
Half-emptying time by Maes/Ghoos method
t50_maes_ghoos_scintigraphy()
Half-emptying time t50 from Maes/Ghoos fit with scintigraphic correction
tidy(<breathtestfit>)
Broom-style tidying methods for breathtestfit
tlag_bluck_coward()
Lag phase for Bluck-Coward self-correcting fit
tlag_maes_ghoos()
So-called lag time from Maes/Ghoos fit
usz_13c
Zurich sample set of 13C breath test data
usz_13c_a
Exotic 13C breath test data
usz_13c_d
13C breath test data with MRI emptying for comparison