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MethComp (version 1.30.2)

Analysis of Agreement in Method Comparison Studies

Description

Methods (standard and advanced) for analysis of agreement between measurement methods. These cover Bland-Altman plots, Deming regression, Lin's Total deviation index, and difference-on-average regression. See Carstensen B. (2010) "Comparing Clinical Measurement Methods: A Practical Guide (Statistics in Practice)" for more information.

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Install

install.packages('MethComp')

Monthly Downloads

478

Version

1.30.2

License

GPL (>= 2)

Maintainer

Last Published

October 20th, 2024

Functions in MethComp (1.30.2)

Passing-Bablok regression

Simulate a dataframe containing replicate measurements on the same items using different methods.

Functions to handle transformations of measurement results.

Compute Lin's Total deviation index

Derive linear conversion coefficients from a set of indeterminate coefficients

Peak Expiratory Flow Rate (PEFR) measurements with Wright peak flow and mini Wright peak flow meter.

Measurement of cardiac output by two different methods.

Merits of two instruments designed to measure certain aspects of human lung function (Vital Capacity)

Classical association measures

Function to identify the middle of a vector

A MCmcmc object from the hba1c data

Function to identify the extremes of a vector

Functions to handle transformations of measurement results.

Summarize conversion equations and prediction intervals between methods.

Measurement of fat content of human milk by two different methods.

Add regression lines to a plot

Glucose measurements by different methods

Measurements of HbA1c from Steno Diabetes Center

Measurements of subcutaneous and visceral fat

A MCmcmc object from the oximetry data.

Manipulate the replicate numbering within (item,method)

Measurement of oxygen saturation in blood

Predict results from PBreg object

Measurements of plasma volume measured by two different methods.

Plot estimated conversion lines and formulae.

Summarize conversion equations and prediction intervals between methods.

Bland-Altman plot of differences versus averages.

Systolic blood pressure measured by three different methods.

Relative renal function by Scintigraphy

A MCmcmc object from the sbp data

Print a MCmcmc object

Perception of points in a swarm

Sample Meth object with replacement

Create a pairs plot for an MCmcmc object

Functions to convert between long and wide representations of data

Functions to convert between long and wide representations of data

Functions to graphically assess the convergence of the MCMC-simulation in a MCmcmc object

Summary for Meth obect

Subset an MCmcmc object

Convert DA to (classical) regression

Convert DA to (classical) regression

Data from a rating experiment of recorgnizing point counts.

Regression with errors in both variables (Deming regression)

Create a Meth object representing a method comparison study

Estimate in a method comparison model with replicates

Enzyme activity data

Measurements of Cardiac output.

Make a regression of differences on averages

Bias and variance components for a Bland-Altman plot.

Fit a model for method comparison studies using WinBUGS