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