bland_altman_plot: Extended Bland-Atlman limits of agreement (LoA) plot
Description
This function produces the extended Bland-Altman Limits of Agreement (LoA) plot
when there are repeated measurements with possibly heteroscedastic variance of
measurement errors.
Usage
bland_altman_plot(data, new = "y1", Ref = "y2", ID = "id", fill = TRUE)
Arguments
- data
a dataframe contains the object identification number (id),
the measurement values from the new measurement method (y1) and those from
the reference standard (y2)
- new
specify the variable name or location for the new measurement method
- Ref
specify the variable name or location for the reference measuerment method
- ID
specify the variable name for location for the subject identification number (id)
- fill
logical. if TRUE use the average value for new methods to
fill out the missing value (only useful for drawing a plot with all the
measurements by the reference standard)
Author
Mingkai Peng & Patrick Taffé
Details
This functions computes the limits of agreement (LoA) when there are
repeated measurements and possibly heteroscedastic variance of measurement errors
Examples
Run this code### Load the data
data(data1)
### Bland and Altman's plot
bland_altman_plot(data1)
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