• using R Under development (unstable) (2018-04-22 r74625)
• using platform: x86_64-pc-linux-gnu (64-bit)
• using session charset: UTF-8
• checking for file ‘qrfactor/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘qrfactor’ version ‘1.4’
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking serialization versions ... OK
• checking whether package ‘qrfactor’ can be installed ... OK
• checking package directory ... OK
• checking DESCRIPTION meta-information ... NOTE
  Malformed Description field: should contain one or more complete sentences.
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking R files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... OK
• checking whether the package can be loaded with stated dependencies ... OK
• checking whether the package can be unloaded cleanly ... OK
• checking whether the namespace can be loaded with stated dependencies ... OK
• checking whether the namespace can be unloaded cleanly ... OK
• checking loading without being on the library search path ... OK
• checking use of S3 registration ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... NOTE
  Found the following apparent S3 methods exported but not registered:
    plot.qrfactor print.qrfactor qrfactor.default summary.qrfactor
  See section ‘Registering S3 methods’ in the ‘Writing R Extensions’
  manual.
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [21s/31s] NOTE
  plot.qrfactor : sp.label: no visible global function definition for
    ‘coordinates’
  plot.qrfactor: no visible global function definition for ‘slot’
  plot.qrfactor: no visible global function definition for ‘slot<-’
  plot.qrfactor: no visible global function definition for ‘text’
  plot.qrfactor: no visible global function definition for ‘layout’
  plot.qrfactor: no visible global function definition for ‘kmeans’
  plot.qrfactor: no visible global function definition for ‘polygon’
  plot.qrfactor: no visible global function definition for ‘points’
  plot.qrfactor: no visible global function definition for ‘mahalanobis’
  plot.qrfactor: no visible global function definition for ‘qqplot’
  plot.qrfactor: no visible global function definition for ‘qchisq’
  plot.qrfactor: no visible global function definition for ‘ppoints’
  plot.qrfactor: no visible global function definition for ‘spplot’
  plot.qrfactor: no visible global function definition for ‘bpy.colors’
  plot.qrfactor: no visible global function definition for ‘gray.colors’
  plot.qrfactor: no visible global function definition for ‘aggregate’
  plot.qrfactor: no visible global function definition for ‘aov’
  plot.qrfactor: no visible global function definition for ‘kruskal.test’
  plot.qrfactor: no visible global function definition for ‘dist’
  plot.qrfactor: no visible global function definition for ‘hclust’
  plot.qrfactor: no visible global function definition for ‘rect.hclust’
  plot.qrfactor: no visible global function definition for ‘na.omit’
  plot.qrfactor: no visible global function definition for ‘readOGR’
  plot.qrfactor: no visible global function definition for ‘wilcox.test’
  plot.qrfactor: no visible global function definition for ‘TukeyHSD’
  rq: no visible global function definition for ‘readOGR’
  rq: no visible global function definition for ‘slot’
  rq: no visible global function definition for ‘read.csv’
  rq: no visible global function definition for ‘read.table’
  rq: no visible global function definition for ‘slot<-’
  rq: no visible global function definition for ‘na.omit’
  rq: no visible global function definition for ‘cor’
  rq: no visible global function definition for ‘kmeans’
  Undefined global functions or variables:
    TukeyHSD aggregate aov bpy.colors coordinates cor dist gray.colors
    hclust kmeans kruskal.test layout mahalanobis na.omit points polygon
    ppoints qchisq qqplot read.csv read.table readOGR rect.hclust slot
    slot<- spplot text wilcox.test
  Consider adding
    importFrom("grDevices", "gray.colors")
    importFrom("graphics", "layout", "points", "polygon", "text")
    importFrom("methods", "slot", "slot<-")
    importFrom("stats", "TukeyHSD", "aggregate", "aov", "cor", "dist",
               "hclust", "kmeans", "kruskal.test", "mahalanobis",
               "na.omit", "ppoints", "qchisq", "qqplot", "rect.hclust",
               "wilcox.test")
    importFrom("utils", "read.csv", "read.table")
  to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
  contains 'methods').
• checking Rd files ... OK
• checking Rd metadata ... OK
• checking Rd line widths ... OK
• checking Rd cross-references ... OK
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking examples ... [4s/7s] OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [4s/9s] ERROR
    Running ‘MDS.R’ [4s/8s]
  Running the tests in ‘tests/MDS.R’ failed.
  Complete output:
    > library(qrfactor)
    Loading required package: mvoutlier
    Loading required package: sgeostat
    sROC 0.1-2 loaded
    Loading required package: mgraph
    Loading required package: rgdal
    Loading required package: sp
    rgdal: version: 1.2-18, (SVN revision 718)
     Geospatial Data Abstraction Library extensions to R successfully loaded
     Loaded GDAL runtime: GDAL 2.2.4, released 2018/03/19
     Path to GDAL shared files: /usr/share/gdal/2.2
     GDAL binary built with GEOS: TRUE
     Loaded PROJ.4 runtime: Rel. 5.0.1, April 1st, 2018, [PJ_VERSION: 501]
     Path to PROJ.4 shared files: (autodetected)
     Linking to sp version: 1.2-7
    Loading required package: pvclust
    Loading required package: cluster
    Loading required package: maptools
    Checking rgeos availability: FALSE
      Note: when rgeos is not available, polygon geometry computations in maptools depend on gpclib,
      which has a restricted licence. It is disabled by default;
      to enable gpclib, type gpclibPermit()
    > #data must be numeric, avoid using categorical and characters
    > data(UScereal, package="MASS")
    > variables=c("calories","protein","sodium","carbo","sugars","potassium")
    > data=UScereal[variables]
    > #Multi dimensional scaling can be simulated as:
    > plot(qrfactor(data,scale='n'),plot="r",type="mds",factors=c(1,2))
    Error in UseMethod("qrfactor") :
      no applicable method for 'qrfactor' applied to an object of class "data.frame"
    Calls: plot -> qrfactor
    Execution halted
• checking PDF version of manual ... OK
• DONE

Status: 1 ERROR, 3 NOTEs