beta.pd.utils: no visible global function definition for 'combn'
dist.mat: no visible global function definition for 'as.dist'
recluster.boot: no visible global function definition for 'hclust'
recluster.cons: no visible global function definition for 'hclust'
recluster.cons: no visible global function definition for 'as.dist'
recluster.cons: no visible global function definition for 'median'
recluster.expl.diss: no visible global function definition for
  'reorder'
recluster.group.col: no visible global function definition for
  'aggregate'
recluster.hist: no visible global function definition for 'hist'
recluster.identify.nodes: no visible global function definition for
  'complete.cases'
recluster.identify.nodes: no visible global function definition for
  'aggregate'
recluster.identify.nodes : x: no visible global function definition for
  'aggregate'
recluster.identify.nodes: no visible global function definition for
  'lines'
recluster.identify.nodes: no visible global function definition for
  'points'
recluster.line: no visible global function definition for 'dist'
recluster.line: no visible global function definition for 'lm'
recluster.node.strength: no visible global function definition for
  'hclust'
recluster.plot.col: no visible global function definition for 'rgb'
recluster.plot.col: no visible global function definition for 'points'
recluster.plot.matrix: no visible global function definition for 'grey'
recluster.plot.matrix: no visible global function definition for 'rect'
recluster.plot.sites.col: no visible global function definition for
  'rgb'
recluster.plot.sites.col: no visible global function definition for
  'points'
recluster.region: no visible global function definition for 'as.dist'
recluster.region: no visible global function definition for 'hclust'
recluster.region: no visible global function definition for 'cutree'
recluster.test.dist: no visible global function definition for 'dist'
recluster.test.dist: no visible global function definition for 'points'
Undefined global functions or variables:
  aggregate as.dist combn complete.cases cutree dist grey hclust hist
  lines lm median points rect reorder rgb
Consider adding
  importFrom("grDevices", "grey", "rgb")
  importFrom("graphics", "hist", "lines", "points", "rect")
  importFrom("stats", "aggregate", "as.dist", "complete.cases", "cutree",
             "dist", "hclust", "lm", "median", "reorder")
  importFrom("utils", "combn")
to your NAMESPACE file.