.DNA.connectivitylist : .fun_conn_idx: no visible global function
  definition for ‘attach.big.matrix’
.DNA.distance: no visible global function definition for
  ‘as.big.matrix’
.checkadjmatrix: no visible global function definition for
  ‘is.big.matrix’
.cor.threshold: no visible global function definition for ‘qt’
.cv: no visible global function definition for ‘sd’
.filterLowCorrelation: no visible global function definition for
  ‘is.big.matrix’
.network.differences : .fun_distance: no visible global function
  definition for ‘attach.big.matrix’
.plotLines: no visible global function definition for ‘lines’
.plotLines: no visible global function definition for ‘legend’
.uniqueTissues: no visible binding for global variable ‘tail’
.uniqueTissues: no visible global function definition for ‘str_sub’
PSOL_NegativeExpansion: no visible global function definition for
  ‘write.table’
PSOL_NegativeExpansion: no visible global function definition for
  ‘install.packages’
PSOL_NegativeExpansion: no visible global function definition for ‘pdf’
PSOL_NegativeExpansion: no visible global function definition for ‘par’
PSOL_NegativeExpansion: no visible global function definition for
  ‘points’
PSOL_NegativeExpansion: no visible global function definition for
  ‘axis’
PSOL_NegativeExpansion: no visible global function definition for
  ‘mtext’
PSOL_NegativeExpansion: no visible global function definition for
  ‘dev.off’
PSOL_ResultExtraction: no visible global function definition for
  ‘read.table’
geneRanker: no visible global function definition for ‘RankingTstat’
geneRanker: no visible global function definition for ‘RankingFC’
geneRanker: no visible global function definition for ‘RankingWilcoxon’
geneRanker: no visible global function definition for
  ‘RankingBaldiLong’
geneRanker: no visible global function definition for
  ‘RankingShrinkageT’
geneRanker: no visible global function definition for ‘RankingSam’
geneRanker: no visible global function definition for
  ‘RankingSoftthresholdT’
geneRanker: no visible global function definition for ‘RankingLimma’
geneRanker: no visible global function definition for ‘toplist’
optimalScore: no visible global function definition for ‘abline’
plotROC: no visible global function definition for ‘par’
predictor: no visible global function definition for ‘predict’
Undefined global functions or variables:
  RankingBaldiLong RankingFC RankingLimma RankingSam RankingShrinkageT
  RankingSoftthresholdT RankingTstat RankingWilcoxon abline
  as.big.matrix attach.big.matrix axis dev.off install.packages
  is.big.matrix legend lines mtext par pdf points predict qt read.table
  sd str_sub tail toplist write.table
Consider adding
  importFrom("grDevices", "dev.off", "pdf")
  importFrom("graphics", "abline", "axis", "legend", "lines", "mtext",
             "par", "points")
  importFrom("stats", "predict", "qt", "sd")
  importFrom("utils", "install.packages", "read.table", "tail",
             "write.table")
to your NAMESPACE file.