diff --git a/NAMESPACE b/NAMESPACE
index f35c043..d236ec3 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,205 +1,200 @@
 S3method("+",ggList)
 S3method(print,ggList)
 export("%++%")
 #export("%+%")
 export(
   "aggregate.bootstrap", "aggregate.bootstrap.list", "aggregate.challenge", "aggregate.ranked.list",
   "aggregateThenRank",
   "as.challenge",
   "as.relation.challenge.incidence", "as.relation.ranked.list",
-  "bootstrap", "bootstrap.ranked.list", #"bootstrap.default",
+  "bootstrap", "bootstrap.ranked.list", 
   "boxplot.ranked.list", "boxplot.bootstrap.list", "boxplot.comparedRanks.list",
-  #"check_strict_preference",
-  "compareRanks",    "compareRanks.ranked",    "compareRanks.ranked.list", # "compareRanks.default",
-  "consensus",       "consensus.ranked.list", #"consensus.default",
+   "compareRanks",       "compareRanks.ranked.list", 
+  "consensus",       "consensus.ranked.list", 
   "Decision", "decision.challenge",
   "default_colors",
   "density.bootstrap.list",
   "dendrogram", "dendrogram.ranked.list",
   "extract.workflow",
   "kendall",    "kendall.bootstrap.list",
-  # "merge.list",
   "lineplot.challenge",
   "methodsplot","methodsplot.challenge",
   "network", "plot.network",
-  "podium","podium.ranked.list", "podium.challenge",#"podium.default",
+  "podium","podium.ranked.list", "podium.challenge",
   "print.aggregated", "print.aggregated.list", "print.comparedRanks",    "print.ranked", "print.ranked.list",
-  #"quickmerge.list",
-  "rank", "rank.aggregated.list", "rank.aggregatedRanks.list", "rank.challenge", #"rank.default",
-  "rankFrequencies", "rankFrequencies.bootstrap",    "rankFrequencies.bootstrap.list", #"rankFrequencies.default",
-  #"rankNA2",
+   "rank", "rank.aggregated.list", "rank.aggregatedRanks.list", "rank.challenge", 
+  "rankFrequencies", "rankFrequencies.bootstrap",    "rankFrequencies.bootstrap.list", 
   "rankThenAggregate",
   "rankingHeatmap", "rankingHeatmap.ranked.list", "relation_dissimilarity.ranked.list",
   "report", "report.bootstrap.list",
   "select.if", "select.if.aggregated.list", "select.if.comparedRanks.list", "select.if.list", "select.if.ranked.list",
   "significanceMap",
   "spearmansFootrule", "spearmansWeightedFootrule",
   "splitby",
   "stability", "stabilityByAlgorithm", "stabilityByTask",
   "stability.ranked.list", "relation_dissimilarity",
   "stabilityByAlgorithm.bootstrap.list",
   "stabilityByTask.bootstrap.list",
   "subset",
-  "subset.aggregated.list",    "subset.comparedRanks.list", "subset.list", "subset.ranked.list", "subset.bootstrap.list", #"which.top",
+  "subset.aggregated.list",    "subset.comparedRanks.list", "subset.list", "subset.ranked.list", "subset.bootstrap.list", 
   "test",    "test.challenge", "test.default",
   "testThenRank",
   "violin", "violin.bootstrap.list",
   "winner",   "winner.bootstrap.list", "winner.default",    "winner.ranked.list",
   "winnerFrequencies",    "winnerFrequencies.bootstrap", "winnerFrequencies.bootstrap.list",    "winnerFrequencies.default"
   )
 
 
 importFrom("dplyr", "bind_rows","group_by","summarise","select_if","filter","mutate","right_join","anti_join","ungroup","arrange","desc")
 importFrom("rlang",":=",".data","!!")
 importFrom("reshape2","melt", "acast")
 importFrom("utils", "capture.output", "methods")
 importFrom("plyr", "llply")
 importFrom("knitr", "kable")
 importFrom("tidyr", "complete","expand")
 importFrom("purrr", "%>%")
 importFrom("rmarkdown", "render","word_document","pdf_document","html_document")
 importFrom("viridisLite", "viridis","cividis")
 importFrom("ggplot2", "aes","aes_string","geom_abline", "geom_bar", "geom_boxplot", "geom_count", "geom_density", "geom_jitter",
     "geom_line", "geom_point", "geom_raster", "geom_step", "geom_text", "geom_violin","annotate","guide_legend",
     "geom_vline", "ggplot", "ggtitle","vars","xlab","ylab","scale_size_area","theme_get","rel","geom_hline","ggplot_build","scale_fill_manual",
     "scale_y_continuous","coord_cartesian", "element_text", "facet_wrap", "position_jitter", "stat", "stat_summary", "theme", "unit","guides","scale_fill_viridis_c",
     "theme_set", "theme_light", "scale_color_manual", "element_blank")
 importFrom("grDevices", "col2rgb", "gray", "rgb", "grey")
 importFrom("graphics", "abline", "axis", "barplot", "box", "layout",
                "legend", "par", "plot", "points", "segments","boxplot", "stripchart", "title", "grconvertX", "plot.new")
 importFrom("stats", "as.dist", "as.formula", "median", "p.adjust", "density",
                "quantile", "aggregate", "cor", "wilcox.test", "terms.formula", "complete.cases")
 importFrom("methods", "new")
 importFrom("relations","relation","as.relation",
     "relation_domain", "relation_incidence", "relation_is_asymmetric","relation_consensus","relation_ensemble",
     "relation_is_irreflexive", "relation_is_negatively_transitive",
     "relation_is_transitive", "relation_is_trichotomous", "relation_scores",
     "relation_violations","relation_dissimilarity")
 importFrom("graph", "addEdge")
 
 
 S3method(print, comparedRanks)
 S3method(print, aggregated)
 S3method(print, ranked)
 S3method(print, aggregated.list)
 S3method(print, ranked.list)
 
 S3method(aggregate, challenge)
 S3method(aggregate, ranked.list)
 S3method(aggregate, bootstrap.list)
 S3method(aggregate, bootstrap)
 
 S3method(test, default)
 S3method(test, challenge)
 
 S3method(Aggregate, default)
 S3method(Aggregate, list)
 
 S3method(Rank, default)
 S3method(Rank, list)
 
 S3method(rank, default)
 S3method(rank, challenge)
 S3method(rank, aggregated.list)
 S3method(rank, aggregatedRanks.list)
 
 S3method(bootstrap, default)
 S3method(bootstrap, ranked.list)
 
 S3method(dendrogram, default)
 S3method(dendrogram, ranked.list)
 
 S3method(winner, default)
 S3method(winner, ranked.list)
 S3method(winner, bootstrap.list)
 
 S3method(rankFrequencies, default)
 S3method(rankFrequencies, bootstrap)
 S3method(rankFrequencies, bootstrap.list)
 
 S3method(winnerFrequencies, default)
 S3method(winnerFrequencies, bootstrap)
 S3method(winnerFrequencies, bootstrap.list)
 
 
 S3method(compareRanks,default)
-S3method(compareRanks,ranked)
 S3method(compareRanks,ranked.list)
 
 S3method(merge,list)
 
 S3method(melt,ranked.list)
 S3method(melt,aggregated.list)
 
 S3method(boxplot,ranked.list)
 S3method(boxplot,comparedRanks.list)
 S3method(boxplot,bootstrap.list)
 
 S3method(select.if,default)
 S3method(select.if,list)
 S3method(select.if,aggregated.list)
 S3method(select.if,ranked.list)
 S3method(select.if,comparedRanks.list)
 
 S3method(subset,list)
 S3method(subset,bootstrap.list)
 S3method(subset,aggregated.list)
 S3method(subset,ranked.list)
 S3method(subset,comparedRanks.list)
 
 S3method(podium,default)
 S3method(podium,challenge)
 S3method(podium,ranked.list)
 
 S3method(network,default)
 S3method(network,ranked.list)
 S3method(network,dist)
 S3method(plot,network)
 
 S3method(density,bootstrap.list)
 
 S3method(as.relation,challenge.incidence)
 S3method(as.relation,ranked.list)
 
 S3method(subset,bootstrap.list)
 S3method(subset,ranked.list)
 S3method(subset,list)
 S3method(subset,comparedRanks.list)
 S3method(subset,aggregated.list)
 
 S3method(decision,challenge)
 S3method(decision,default)
 
 S3method(lineplot,challenge)
 S3method(lineplot,default)
 
 S3method(methodsplot,challenge)
 S3method(methodsplot,default)
 
 S3method(significanceMap,data.frame)
 S3method(significanceMap,ranked.list)
 S3method(significanceMap,default)
 
 S3method(violin,bootstrap.list)
 S3method(violin,default)
 
 S3method(rankingHeatmap,ranked.list)
 S3method(rankingHeatmap,default)
 
 S3method(relation_dissimilarity,ranked.list)
 S3method(relation_dissimilarity,default)
 
 S3method(stabilityByTask,bootstrap.list)
 S3method(stabilityByTask,default)
 S3method(stability,default)
 S3method(stability,ranked.list)
 
 S3method(stabilityByAlgorithm,bootstrap.list)
 S3method(stabilityByAlgorithm,default)
 
 S3method(consensus,ranked.list)
 S3method(consensus,default)
 
 S3method(report,bootstrap.list)
 S3method(report,ranked.list)
 S3method(report,default)
diff --git a/R/compareRanks.R b/R/compareRanks.R
index 34c1f05..0832bc1 100644
--- a/R/compareRanks.R
+++ b/R/compareRanks.R
@@ -1,58 +1,42 @@
 kendall=function(a,b) cor(a,b,method="kendall")
 spearmansWeightedFootrule=function(a,b)  sum(abs(a-b)/pmin(a,b))
 spearmansFootrule=function(a,b)  sum(abs(a-b))
 # SpearmansFootrule=function(a,b)  sum(abs(match(a, b) - a))
 # SpearmansWeightedFootrule=function(a,b)  sum(abs(match(a, b) - a)/pmin(a,b))
 
 
 compareRanks <- function(x,...) UseMethod("compareRanks")
 compareRanks.default <- function(x, ...) stop("not implemented for this class")
 
-compareRanks.ranked <-function(x,
-                               y,
-                               FUN=kendall,...){
-    mat=merge(x$mat,
-              y$mat,
-              by="row.names",
-              suffixes = c(".1",".2"),
-              ...)
-    tau=FUN(mat$rank.1,
-            mat$rank.2)
-    res=list(tau=tau,
-             mat=mat)
-    class(res)="comparedRanks"
-    res
-  }
-
 
  compareRanks.ranked.list <-function(x,
                                      y,
                                      FUN=kendall,...){
     matlist=merge.list(x$matlist,
                        y$matlist
                        ,...)
     res=lapply(1:length(matlist), 
                function(z){
                  tau=FUN(matlist[[z]][,"rank.1"],
                          matlist[[z]][,"rank.2"])
                  res=list(tau=tau,
                           mat=matlist[[z]])
                  class(res)="comparedRanks"
                  res
                  })
     names(res)=names(matlist)
     class(res)="comparedRanks.list"
    res
   }
 
 
 
 
 print.comparedRanks <-
 function(x,...)  {
   cat("\n")
   print(x$mat)
   cat("\nKendall's tau =",x$tau,"\n-------------------------------------------------------\n")
  }