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Author or maintainer of the following packages:
Chronological objects which can handle dates and times.
A collection of miscellaneous basic statistic functions and convenience wrappers for efficiently des...
Various R programming tools for data manipulation, including: - medical unit conversions ('ConvertMe...
Fit linear and generalized linear mixed-effects models. The models and their components are represen...
Provides a test of replacement and extension of the optim() function to unify and streamline optimiz...
Provides a replacement and extension of the optim()
function to unify and streamline optimiza...
Lots of plots, various labeling, axis and color scaling functions.
An object oriented system using object-based, also called prototype-based, rather than class-based o...
A consistently well behaved method of interpolation based on piecewise rational functions using Stin...
An S3 class with methods for totally ordered indexed
observations. It is particularly aimed a...
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John C Nash