merror: Accuracy and Precision of Measurements

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N>=3 methods are used to measure each of n items. The data are used to estimate simultaneously systematic error (bias) and random error (imprecision). Observed measurements for each method or device are assumed to be linear functions of the unknown true values and the errors are assumed normally distributed. Maximum likelihood estimation is used for the imprecision standard deviation estimates. Pairwise calibration curves and plots can be easily generated.

Author
Richard A. Bilonick <rabilonick@gmail.com>
Date of publication
2015-11-03 10:21:06
Maintainer
Richard A. Bilonick <rabilonick@gmail.com>
License
GPL (>= 2)
Version
2.0.2

View on CRAN

Man pages

beta.bar
Compute the estimates of betas.
cb.pd
Compute accuracy estimates and maximum likelihood estimates...
cplot
Scatter plot of observations for a pair of devices with...
errors.cb
Extracts the estimated measurement errors assuming there is a...
errors.nb
Extracts the estimated measurement errors assuming there is...
errors.ncb
Extracts the estimated measurement errors assuming there is a...
lrt
Likelihood ratio test for all betas equalling one.
merror.pairs
A modified '"pairs"' plot with all axes haveing the same...
mle
Compute maximum likelihood estimates of precision.
mle.se2
Compute squared standard errors for imprecision estimates for...
ncb.od
Compute accuracy estimates and maximum likelihood estimates...
panel.merror
Draw diagonal line (line of equality) on merror.pairs plots
pm2.5
PM 2.5 Concentrations from SCAMP Collocated Samplers
precision.grubbs.cb.pd
Computes Grubbs' method of moments estimators of precision...
precision.grubbs.ncb.od
Computes Grubbs' method of moments estimators of precision...
precision.mle.ncb.od
Computes iterative approximation to mle precision estimates...
process.sd
Compute process standard deviation
process.var.mle
Compute process variance.
process.var.mle.jaech.err
Compute process variance but with minor error in Jaech...
sigma_mle
Computes the ith iteration for computing the squared...

Files in this package

merror
merror/NAMESPACE
merror/data
merror/data/pm2.5.rda
merror/R
merror/R/precision.mle.ncb.od.R
merror/R/sigma_mle.R
merror/R/ncb.od.R
merror/R/mle.se2.R
merror/R/precision.grubbs.ncb.od.R
merror/R/errors.cb.R
merror/R/mle.R
merror/R/lrt.R
merror/R/process.var.mle.R
merror/R/beta.bar.R
merror/R/panel.merror.R
merror/R/process.sd.R
merror/R/precision.grubbs.cb.pd.R
merror/R/errors.ncb.R
merror/R/errors.nb.R
merror/R/process.var.mle.jaech.err.R
merror/R/cb.pd.R
merror/R/merror.pairs.R
merror/R/cplot.R
merror/MD5
merror/README
merror/DESCRIPTION
merror/man
merror/man/pm2.5.Rd
merror/man/cb.pd.Rd
merror/man/process.var.mle.jaech.err.Rd
merror/man/mle.se2.Rd
merror/man/errors.ncb.Rd
merror/man/mle.Rd
merror/man/sigma_mle.Rd
merror/man/errors.cb.Rd
merror/man/precision.grubbs.cb.pd.Rd
merror/man/ncb.od.Rd
merror/man/process.sd.Rd
merror/man/lrt.Rd
merror/man/beta.bar.Rd
merror/man/precision.grubbs.ncb.od.Rd
merror/man/process.var.mle.Rd
merror/man/errors.nb.Rd
merror/man/precision.mle.ncb.od.Rd
merror/man/panel.merror.Rd
merror/man/merror.pairs.Rd
merror/man/cplot.Rd