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Add an option to label nodes in dendrograms #419

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Add an option to label nodes in dendrograms #419

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9 changes: 5 additions & 4 deletions src/dendrogram.jl
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
function treepositions(hc::Hclust, useheight::Bool, orientation=:vertical)
function treepositions(hc::Hclust, useheight::Bool, orientation)

order = StatsBase.indexmap(hc.order)
nodepos = Dict(-i => (float(order[i]), 0.0) for i in hc.order)
Expand All @@ -24,8 +24,9 @@ function treepositions(hc::Hclust, useheight::Bool, orientation=:vertical)
end
end

@recipe function f(hc::Hclust; useheight=true, orientation=:vertical )
@recipe function f(hc::Hclust; useheight=true, orientation=:vertical, leaflabel=string)
typeof(useheight) <: Bool || error("'useheight' argument must be true or false")
nodeslabels = map(leaflabel, hc.order)

legend --> false
linecolor --> :black
Expand All @@ -34,7 +35,7 @@ end
yforeground_color_axis --> :white
ygrid --> false
ylims --> (0.5, length(hc.order) + 0.5)
yticks --> (1:nnodes(hc), string.(1:nnodes(hc))[hc.order])
yticks --> (1:nnodes(hc), nodeslabels)
if useheight
hs=sum(hc.heights)
xlims --> (0, hs+hs*0.01)
Expand All @@ -46,7 +47,7 @@ end
xforeground_color_axis --> :white
xgrid --> false
xlims --> (0.5, length(hc.order) + 0.5)
xticks --> (1:nnodes(hc), string.(1:nnodes(hc))[hc.order])
xticks --> (1:nnodes(hc), nodeslabels)
ylims --> (0, Inf)
yshowaxis --> useheight
end
Expand Down