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Package reference: U

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Package Description
ucminf General-purpose unconstrained non-linear optimization
udunits interface to Unidata's routines to convert units
udunits2 udunits-2 bindings for R
Umacs Universal Markov chain sampler
umlr Open Source Development with UML and R
ump Uniformly Most Powerful Tests
unbalhaar Function estimation via Unbalanced Haar wavelets
uncompress Uncompress
UNF Tools for creating universal numeric fingerprints for data.
Unicode Unicode data and utilities
uniCox Univarate shrinkage prediction in the Cox model
uniPlot Uniforms and customizes plots of packages ggplot2, graphics and lattice
unknownR
unknownR You didn't know you didn't know?
unmarked Models for Data from Unmarked Animals
untb ecological drift under the UNTB
upclass Updated Classification Methods using Unlabelled Data
urca Unit root and cointegration tests for time series data
urn Urn : Sampling Without Replacement
uroot Unit Root Tests and Graphics for Seasonal Time Series
UScancer
UScensus1990blkgrp US Census 1990 Blockgroup Level Shapefiles and Additional Demographic Data
UScensus2000 US Census 2000 Suite of R Packages
UScensus2000add US Census 2000 Suite of R Packages: Demographic Add
UScensus2000blkgrp US Census 2000 Block Group Shapefiles and Additional Demographic Data
UScensus2000cdp US Census 2000 Designated Places Shapefiles and Additional Demographic Data
UScensus2000tract US Census 2000 Tract Level Shapefiles and Additional Demographic Data
UScensus2010 US Census 2010 Suite of R Packages
usdm Uncertainty analysis for species distribution models
useful A collection of handy, useful functions
UsingR Data sets for the text "Using R for Introductory Statistics"
uskew
usl Analyze system scalability with the Universal Scalability Law
USPS Unsupervised and Supervised methods of Propensity Score Adjustment for Bias
utility Construct, Evaluate and Plot Value and Utility Functions
uuid
UWHAM Unbinned weighted histogram analysis method (UWHAM)