File 'UScensus2010/R/zzz.R':
  .onLoad calls:
    packageStartupMessage("\n")
    packageStartupMessage(paste("Package ", dscr$Package, ": ", dscr$Title,     "\n", "Version ", dscr$Version, " created on ", dscr$Date,     ".\n", sep = ""))
    packageStartupMessage(paste("Zack Almquist, University of California-Irvine\nne\n",     sep = ""))
    packageStartupMessage("For citation information, type citation(\"UScensus2010\").")
    packageStartupMessage("Type help(package=UScensus2010) to get started.")

See section 'Good practice' in '?.onAttach'.

MSA : MSA.aux: no visible global function definition for 'data'
areaPoly: no visible global function definition for 'slot'
areaPoly: no visible binding for global variable 'slot'
check.state : check.state.aux: no visible global function definition
  for 'data'
choropleth.plot: no visible global function definition for 'title'
city : city.aux: no visible global function definition for 'data'
county : county.aux: no visible global function definition for 'data'
county : county.aux : build.county.shape: no visible global function
  definition for 'data'
demographics : demographics.aux : dem.fun: no visible global function
  definition for 'data'
demographics : demographics.aux: no visible global function definition
  for 'data'
install.blk: no visible global function definition for
  'install.packages'
install.blkgrp: no visible global function definition for
  'install.packages'
install.cdp: no visible global function definition for
  'install.packages'
install.county: no visible global function definition for
  'install.packages'
install.tract: no visible global function definition for
  'install.packages'
nameTofips : nameTofips.aux: no visible global function definition for
  'data'
Undefined global functions or variables:
  data install.packages slot title
Consider adding
  importFrom("graphics", "title")
  importFrom("methods", "slot")
  importFrom("utils", "data", "install.packages")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').

Found the following calls to data() loading into the global environment:
File 'UScensus2010/R/demographics.R':
  data(list = paste(state, ".", level, "10", sep = ""))
See section 'Good practice' in '?data'.