Analysis of method comparison studies


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Documentation for package ‘MethComp’ version 0.5.0

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abconv Derive linear conversion coefficients from a set of indeterminate coefficients
AltReg Estimate in a method comparison model with replicates
BA.est Bias and variance components for a Bland-Altman plot.
BA.plot Bland-Altman plot of differences versus averages.
BlandAltman Bland-Altman plot of differences versus averages.
bothlines Add regression lines to a plot
cardiac Measurement of cardiac output by two different methods.
check.MCmcmc Functions to graphically assess the convergence of the MCMC-simulation in a MCmcmc object
corr.measures Association measures for method comparison studies. Please don't use them!
DA.reg Make a regresion of differeneces on averages
Deming Regression with errors in both variables (Deming regression)
ends Association measures for method comparison studies. Please don't use them!
Enzyme Enzyme activity data
fat Measurements of subcutaneous and visceral fat
glucose Glucose measurements by different methods
hba.MC A MCmcmc object from the hba1c data
hba1c Measurements of HbA1c from Steno Diabetes Center
make.repl Generate a numbering of replicates within (item,method)
mcmc.MCmcmc Fit a model for method comparison studies using WinBUGS
MCmcmc Fit a model for method comparison studies using WinBUGS
Meth Create a Meth object representing a method comparison study
Meth.sim Simulate a dataframe containing replicate measurements on the same items using different methods.
middle Association measures for method comparison studies. Please don't use them!
milk Measurement of fat content of human milk by two different methods.
ox Measurement of oxygen saturation in blood
ox.MC A MCmcmc object from the oximetry data.
pairs.MCmcmc Functions to graphically assess the convergence of the MCMC-simulation in a MCmcmc object
PEFR PEFR measurements with wright peak flow and mini wright peak flow meter.
perm.repl Randomly permute replicates within methods
plot.MCmcmc Plot estimated conversion lines and formulae.
plot.Meth Create a Meth object representing a method comparison study
plot.VarComp Plot the a posteriori densities for variance components
plvol Measurements of plasma volume measured by two different methods.
post.MCmcmc Functions to graphically assess the convergence of the MCMC-simulation in a MCmcmc object
print.MCmcmc Fit a model for method comparison studies using WinBUGS
sbp Systolic blood pressure measured by three different methods.
scint Relative renal function by Scintigraphy
subset.MCmcmc Fit a model for method comparison studies using WinBUGS
subset.Meth Create a Meth object representing a method comparison study
summary.MCmcmc Fit a model for method comparison studies using WinBUGS
summary.Meth Create a Meth object representing a method comparison study
tab.repl Table of replicates by each method
TDI Compute Lin's Total deviation index
to.long Functions to convert between long and wide representations of data.
to.wide Functions to convert between long and wide representations of data.
trace.MCmcmc Functions to graphically assess the convergence of the MCMC-simulation in a MCmcmc object
transform.Meth Create a Meth object representing a method comparison study
VC.est Bias and variance components for a Bland-Altman plot.
VitCap Merits of two instruments designed to measure certain aspects of human lung function (Vital Capacity)