Provides classes and calculation and plotting functions for metrology applications, including measurement uncertainty estimation and inter-laboratory metrology comparison studies.
The metRology package includes functions for:
Plotting for Key Comparisons (dot-and-bar, consistency)
Uncertainty evaluation using algebraic or numeric differentiation, with support for correlation
Monte Carlo evaluation of uncertainty (including correlation for normally distributed variables)
Classes and functions for location estimates for metrology comparisons
Mandel's h and k statistics and plots for interlaboratory studies
Support functions for an excel interface
Changes in version 0.9-28-1 from version 0.9-28-0 include:
blockplot x-axis label, which was incorrect.
Changes in version 0.9-28-0 from version 0.9-27-2 include:
A new plot,
blockplot, added. A “block plot” is a histogram variant identifiying
individual data points, which appear as “blocks” in the plot.
blockplot provides for grouped
data, which generates vertically separated subplots for each group. Fills and label colours can be specified
for each data point.
Changes in version 0.9-27-2 from version 0.9-26-2 include:
pmsd and related functions will now use fast interpolation by default, and
provide exact values for both odd- and even-n data sets up to n=199.
gplot (called by
plot.mandel.kh) now has a
which allows finer control of vertical line spacing.
Changes in version 0.9-26-2 from version 0.9-26-1 include:
Fix to a bug in
reml.loc which failed to report the standard uncertainty
cplot now respects
cex.axis as a plot parameter.
Changes in version 0.9-26-1 from version 0.9-26-0 include:
Added plot and barplot methods for MSD class.
Minor correction to code in
msd to prevent over-replication
s is a function and returns a vector.
Changes in version 0.9-26 from version 0.9-25 include:
msd now returns an object of class
includes the original data as attributes to permit subsequent bootstrapping.
A new function,
bootMSD that performs parametric
MSD objects to obtain critical values
and p-values for the general case where standard uncertainties/standard
errors differ appreciably.
Improvements in version 0.9-25 from version 0.9-23 include:
plot.d.ellipse now takes default
dimnames in the supplied
Improvements in version 0.9-23 from version 0.9-22 include:
A wholly new Youden plot (see
yplot), with many options for confidence ellipses
A REML location estimate,
reml.loc, in addition to
reml.loc can use means and standard uncertainties/standard errors instead of raw data
and when doing so does not require degrees of freedom.
Incremental improvements in handling for the median scaled difference measure of anomalies.
msd is faster and less memory-intensive, and
pmsd now uses a
beta formulation to extend to very high
n (at least 1e6 - if you feel very
Corrections and bugfixes include:
plot.drop1.uncert to give a plot for each measure of change specified in
corrects a grep warning appearing in
corrects an unnecessary 'missing
u' error message in version 0.9-22's
cov was specified and
u was not.
Stephen L R Ellison <firstname.lastname@example.org>.
Maintainer: Stephen L R Ellison <email@example.com>
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