1.13.2 [skip ci]

Fix shapes series on plotly

.gitignore

@@ -12,3 +12,4 @@ dev/
 test/tmpplotsave.hdf5
 /.benchmarkci
 /benchmark/*.json
+.vscode/

Project.toml

@@ -1,7 +1,7 @@
 name = "Plots"
 uuid = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 author = ["Tom Breloff (@tbreloff)"]
-version = "1.11.2"
+version = "1.13.2"
 
 [deps]
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
@@ -39,7 +39,7 @@ FixedPointNumbers = "0.6, 0.7, 0.8"
 GR = "0.46, 0.47, 0.48, 0.49, 0.50, 0.51, 0.52, 0.53, 0.54, 0.55, 0.57"
 GeometryBasics = "0.2, 0.3.1"
 JSON = "0.21, 1"
-Latexify = "0.14"
+Latexify = "0.14, 0.15"
 Measures = "0.3"
 NaNMath = "0.3"
 PlotThemes = "2"

deps/SnoopCompile/precompile/precompile_Plots.jl

@@ -77,11 +77,9 @@ function _precompile_()
     Base.precompile(Tuple{Core.kwftype(typeof(_make_hist)),NamedTuple{(:normed, :weights), Tuple{Bool, Nothing}},typeof(_make_hist),Tuple{Vector{Float64}},Symbol})
     Base.precompile(Tuple{Core.kwftype(typeof(_make_hist)),NamedTuple{(:normed, :weights), Tuple{Bool, Vector{Int64}}},typeof(_make_hist),Tuple{Vector{Float64}},Symbol})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:flip,), Tuple{Bool}},typeof(attr!),Axis})
-    Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:formatter,), Tuple{Symbol}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:formatter,), Tuple{typeof(datetimeformatter)}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:grid, :lims), Tuple{Bool, Tuple{Float64, Float64}}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:grid, :lims, :flip), Tuple{Bool, Tuple{Float64, Float64}, Bool}},typeof(attr!),Axis})
-    Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:grid,), Tuple{Bool}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:gridlinewidth, :grid, :gridalpha, :gridstyle, :foreground_color_grid), Tuple{Int64, Bool, Float64, Symbol, RGBA{Float64}}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:guide,), Tuple{String}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:guide_position, :guidefontvalign, :mirror, :guide), Tuple{Symbol, Symbol, Bool, String}},typeof(attr!),Axis})
@@ -90,9 +88,7 @@ function _precompile_()
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:lims,), Tuple{Tuple{Float64, Float64}}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:lims,), Tuple{Tuple{Int64, Float64}}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:lims,), Tuple{Tuple{Int64, Int64}}},typeof(attr!),Axis})
-    Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:rotation,), Tuple{Int64}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:scale, :guide), Tuple{Symbol, String}},typeof(attr!),Axis})
-    Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:ticks,), Tuple{Nothing}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(attr!)),NamedTuple{(:ticks,), Tuple{UnitRange{Int64}}},typeof(attr!),Axis})
     Base.precompile(Tuple{Core.kwftype(typeof(default)),NamedTuple{(:shape,), Tuple{Symbol}},typeof(default)})
     Base.precompile(Tuple{Core.kwftype(typeof(default)),NamedTuple{(:titlefont, :legendfontsize, :guidefont, :tickfont, :guide, :framestyle, :yminorgrid), Tuple{Tuple{Int64, String}, Int64, Tuple{Int64, Symbol}, Tuple{Int64, Symbol}, String, Symbol, Bool}},typeof(default)})
@@ -221,6 +217,8 @@ function _precompile_()
     Base.precompile(Tuple{typeof(RecipesPipeline.plot_setup!),Plot{GRBackend},Dict{Symbol, Any},Vector{Dict{Symbol, Any}}})
     Base.precompile(Tuple{typeof(RecipesPipeline.plot_setup!),Plot{PlotlyBackend},Dict{Symbol, Any},Vector{Dict{Symbol, Any}}})
     Base.precompile(Tuple{typeof(RecipesPipeline.preprocess_attributes!),Plot{GRBackend},DefaultsDict})
+    Base.precompile(Tuple{typeof(RecipesPipeline.preprocess_axis_args!),Plot{GRBackend},Dict{Symbol, Any},Symbol})
+    Base.precompile(Tuple{typeof(RecipesPipeline.preprocess_axis_args!),Plot{PlotlyBackend},Dict{Symbol, Any},Symbol})
     Base.precompile(Tuple{typeof(RecipesPipeline.process_userrecipe!),Plot{GRBackend},Vector{Dict{Symbol, Any}},Dict{Symbol, Any}})
     Base.precompile(Tuple{typeof(RecipesPipeline.process_userrecipe!),Plot{PlotlyBackend},Vector{Dict{Symbol, Any}},Dict{Symbol, Any}})
     Base.precompile(Tuple{typeof(RecipesPipeline.warn_on_recipe_aliases!),Plot{GRBackend},DefaultsDict,Symbol,Any})
@@ -233,11 +231,8 @@ function _precompile_()
     Base.precompile(Tuple{typeof(_cbar_unique),Vector{PlotUtils.ContinuousColorGradient},String})
     Base.precompile(Tuple{typeof(_cbar_unique),Vector{StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64}}},String})
     Base.precompile(Tuple{typeof(_cbar_unique),Vector{Symbol},String})
-    Base.precompile(Tuple{typeof(_cycle),ColorPalette,Int64})
-    Base.precompile(Tuple{typeof(_cycle),StepRange{Int64, Int64},Vector{Int64}})
-    Base.precompile(Tuple{typeof(_cycle),Vector{Float64},UnitRange{Int64}})
-    Base.precompile(Tuple{typeof(_cycle),Vector{Float64},Vector{Int64}})
     Base.precompile(Tuple{typeof(_do_plot_show),Plot{GRBackend},Bool})
+    Base.precompile(Tuple{typeof(_do_plot_show),Plot{PlotlyBackend},Bool})
     Base.precompile(Tuple{typeof(_heatmap_edges),Vector{Float64},Bool,Bool})
     Base.precompile(Tuple{typeof(_plot!),Plot,Any,Any})
     Base.precompile(Tuple{typeof(_preprocess_barlike),DefaultsDict,Base.OneTo{Int64},Vector{Float64}})
@@ -261,7 +256,6 @@ function _precompile_()
     Base.precompile(Tuple{typeof(get_minor_ticks),Subplot{GRBackend},Axis,Tuple{Vector{Float64}, Vector{String}}})
     Base.precompile(Tuple{typeof(get_minor_ticks),Subplot{GRBackend},Axis,Tuple{Vector{Int64}, Vector{String}}})
     Base.precompile(Tuple{typeof(get_series_color),Vector{Symbol},Subplot{GRBackend},Int64,Symbol})
-    Base.precompile(Tuple{typeof(get_series_color),Vector{Symbol},Subplot{PlotlyBackend},Int64,Symbol})
     Base.precompile(Tuple{typeof(get_ticks),StepRange{Int64, Int64},Vector{Float64},Vector{Any},Tuple{Int64, Int64},Vararg{Any, N} where N})
     Base.precompile(Tuple{typeof(get_ticks),Symbol,Vector{Float64},Vector{Any},Tuple{Float64, Float64},Vararg{Any, N} where N})
     Base.precompile(Tuple{typeof(get_ticks),Symbol,Vector{Float64},Vector{Any},Tuple{Int64, Float64},Vararg{Any, N} where N})
@@ -275,8 +269,12 @@ function _precompile_()
     Base.precompile(Tuple{typeof(gr_draw_contour),Series,StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64}},StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64}},Matrix{Float64},Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_heatmap),Series,Vector{Float64},Vector{Float64},Matrix{Float64},Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_markers),Series,Base.OneTo{Int64},Vector{Float64},Tuple{Float64, Float64}})
+    Base.precompile(Tuple{typeof(gr_draw_markers),Series,StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64}},Vector{Float64},Tuple{Float64, Float64}})
+    Base.precompile(Tuple{typeof(gr_draw_markers),Series,UnitRange{Int64},Vector{Float64},Tuple{Float64, Float64}})
+    Base.precompile(Tuple{typeof(gr_draw_markers),Series,Vector{Int64},Vector{Float64},Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_segments),Series,Base.OneTo{Int64},UnitRange{Int64},Tuple{Vector{Float64}, Vector{Float64}},Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_segments),Series,Base.OneTo{Int64},Vector{Float64},Int64,Tuple{Float64, Float64}})
+    Base.precompile(Tuple{typeof(gr_draw_segments),Series,Base.OneTo{Int64},Vector{Float64},Nothing,Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_segments),Series,StepRange{Int64, Int64},Vector{Float64},Int64,Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_segments),Series,Vector{Float64},Vector{Float64},Int64,Tuple{Float64, Float64}})
     Base.precompile(Tuple{typeof(gr_draw_shapes),Series,Tuple{Float64, Float64}})
@@ -301,7 +299,6 @@ function _precompile_()
     Base.precompile(Tuple{typeof(ignorenan_minimum),Vector{Int64}})
     Base.precompile(Tuple{typeof(layout_args),Int64})
     Base.precompile(Tuple{typeof(make_fillrange_side),UnitRange{Int64},LinRange{Float64}})
-    Base.precompile(Tuple{typeof(ohlc),Any})
     Base.precompile(Tuple{typeof(optimal_ticks_and_labels),Nothing,Tuple{Float64, Float64},Symbol,Function})
     Base.precompile(Tuple{typeof(optimal_ticks_and_labels),Nothing,Tuple{Float64, Float64},Symbol,Symbol})
     Base.precompile(Tuple{typeof(optimal_ticks_and_labels),Nothing,Tuple{Int64, Float64},Symbol,Symbol})
@@ -324,10 +321,6 @@ function _precompile_()
     Base.precompile(Tuple{typeof(process_axis_arg!),Dict{Symbol, Any},Symbol,Symbol})
     Base.precompile(Tuple{typeof(push!),Plot{GRBackend},Float64,Vector{Float64}})
     Base.precompile(Tuple{typeof(slice_arg),Base.ReshapedArray{Int64, 2, UnitRange{Int64}, Tuple{}},Int64})
-    Base.precompile(Tuple{typeof(slice_arg),Matrix{AbsoluteLength},Int64})
-    Base.precompile(Tuple{typeof(slice_arg),Matrix{Bool},Int64})
-    Base.precompile(Tuple{typeof(slice_arg),Matrix{PlotUtils.ContinuousColorGradient},Int64})
-    Base.precompile(Tuple{typeof(slice_arg),Matrix{RGBA{Float64}},Int64})
     Base.precompile(Tuple{typeof(spy),Any})
     Base.precompile(Tuple{typeof(straightline_data),Tuple{Float64, Float64},Tuple{Float64, Float64},Vector{Float64},Vector{Float64},Int64})
     Base.precompile(Tuple{typeof(stroke),Int64,Vararg{Any, N} where N})
@@ -339,11 +332,6 @@ function _precompile_()
     Base.precompile(Tuple{typeof(xgrid!),Plot{GRBackend},Symbol,Vararg{Any, N} where N})
     Base.precompile(Tuple{typeof(xlims),Subplot{PlotlyBackend}})
     Base.precompile(Tuple{typeof(yaxis!),Any,Any})
-    let fbody = try __lookup_kwbody__(which(gr_polyline, (Vector{Float64},Vector{Float64},typeof(GR.fillarea),))) catch missing end
-        if !ismissing(fbody)
-            precompile(fbody, (Symbol,Symbol,typeof(gr_polyline),Vector{Float64},Vector{Float64},typeof(GR.fillarea),))
-        end
-    end
     let fbody = try __lookup_kwbody__(which(plot!, (Any,))) catch missing end
         if !ismissing(fbody)
             precompile(fbody, (Any,typeof(plot!),Any,))

src/axes.jl

@@ -235,6 +235,66 @@ function get_ticks(sp::Subplot, axis::Axis; update = true)
     return axis.plotattributes[:optimized_ticks]
 end
 
+# Ticks getter functions
+for l in (:x, :y, :z)
+    axis = string(l, "-axis")  # "x-axis"
+    ticks = string(l, "ticks") # "xticks"
+    f = Symbol(ticks)          # :xticks
+    @eval begin
+        """
+            $($f)(p::Plot)
+
+        returns a vector of the $($axis) ticks of the subplots of `p`.
+
+        Example use:
+
+        ```jldoctest
+        julia> p = plot(1:5, $($ticks)=[1,2])
+
+        julia> $($f)(p)
+        1-element Vector{Tuple{Vector{Float64}, Vector{String}}}:
+         ([1.0, 2.0], ["1", "2"])
+        ```
+
+        If `p` consists of a single subplot, you might want to grab
+        only the first element, via
+
+        ```jldoctest
+        julia> $($f)(p)[1]
+        ([1.0, 2.0], ["1", "2"])
+        ```
+
+        or you can call $($f) on the first (only) subplot of `p` via
+
+        ```jldoctest
+        julia> $($f)(p[1])
+        ([1.0, 2.0], ["1", "2"])
+        ```
+        """
+        $f(p::Plot) = get_ticks(p, $(Meta.quot(l)))
+        """
+            $($f)(sp::Subplot)
+
+        returns the $($axis) ticks of the subplot `sp`.
+
+        Note that the ticks are returned as tuples of values and labels:
+
+        ```jldoctest
+        julia> sp = plot(1:5, $($ticks)=[1,2]).subplots[1]
+        Subplot{1}
+
+        julia> $($f)(sp)
+        ([1.0, 2.0], ["1", "2"])
+        ```
+        """
+        $f(sp::Subplot) = get_ticks(sp, $(Meta.quot(l)))
+        export $f
+    end
+end
+# get_ticks from axis symbol :x, :y, or :z
+get_ticks(sp::Subplot, s::Symbol) = get_ticks(sp, sp[Symbol(s, :axis)])
+get_ticks(p::Plot, s::Symbol) = [get_ticks(sp, s) for sp in p.subplots]
+
 function get_ticks(ticks::Symbol, cvals::T, dvals, args...) where T
     if ticks === :none
         return T[], String[]

src/backends/pgfplotsx.jl

@@ -225,16 +225,22 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
             @label colorbar_end
 
             if hascolorbar(sp)
+                cticks = get_colorbar_ticks(sp)[2]
                 colorbar_style = PGFPlotsX.Options(
                     "title" => sp[:colorbar_title],
-                    "xticklabel style" => pgfx_get_ticklabel_style(sp, sp[:xaxis]),
-                    "yticklabel style" => pgfx_get_ticklabel_style(sp, sp[:yaxis]),
                 )
                 if sp[:colorbar] === :top
                     push!(colorbar_style,
                         "at" => string((0.5, 1.05)),
                         "anchor" => "south",
+                        "xtick" => string("{", join(cticks, ","), "}"),
                         "xticklabel pos" => "upper",
+                        "xticklabel style" => pgfx_get_colorbar_ticklabel_style(sp),
+                    )
+                else
+                    push!(colorbar_style,
+                        "ytick" => string("{", join(cticks, ","), "}"),
+                        "yticklabel style" => pgfx_get_colorbar_ticklabel_style(sp),
                     )
                 end
                 push!(
@@ -242,6 +248,8 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                     string("colorbar", pgfx_get_colorbar_pos(sp[:colorbar])) => nothing,
                     "colorbar style" => colorbar_style,
                 )
+            else
+                push!(axis_opt, "colorbar" => "false") 
             end
             if RecipesPipeline.is3d(sp)
                 azim, elev = sp[:camera]
@@ -341,7 +349,7 @@ function pgfx_add_series!(::Val{:path}, axis, series_opt, series, series_func, o
     # treat segments
     segments = collect(series_segments(series, series[:seriestype]))
     sf = opt[:fillrange]
-    for segment in segments
+    for (k, segment) in enumerate(segments)
         i, rng = segment.attr_index, segment.range
         segment_opt = PGFPlotsX.Options()
         segment_opt = merge(segment_opt, pgfx_linestyle(opt, i))
@@ -397,7 +405,7 @@ function pgfx_add_series!(::Val{:path}, axis, series_opt, series, series_func, o
                 )
                 end
             end
-            if i == 1 &&
+            if k == 1 &&
                series[:subplot][:legend] != :none && pgfx_should_add_to_legend(series)
                 pgfx_filllegend!(series_opt, opt)
             end
@@ -809,15 +817,23 @@ function pgfx_get_ticklabel_style(sp, axis)
     return PGFPlotsX.Options(
         "font" => pgfx_font(
             axis[:tickfontsize], pgfx_thickness_scaling(sp)
-        ),
-        "color" => cstr,
+        ), "color" => cstr,
         "draw opacity" => alpha(cstr),
         "rotate" => axis[:tickfontrotation],
     )
 end
 
+function pgfx_get_colorbar_ticklabel_style(sp)
+    cstr = plot_color(sp[:colorbar_tickfontcolor])
+    return PGFPlotsX.Options(
+        "font" => pgfx_font(
+            sp[:colorbar_tickfontsize], pgfx_thickness_scaling(sp)
+        ), "color" => cstr,
+        "draw opacity" => alpha(cstr),
+        "rotate" => sp[:colorbar_tickfontrotation],
+    )
+end
 ## --------------------------------------------------------------------------------------
-# Generates a colormap for pgfplots based on a ColorGradient
 pgfx_arrow(::Nothing) = "every arrow/.append style={-}"
 function pgfx_arrow(arr::Arrow, side = arr.side)
     components = String[]
@@ -848,6 +864,7 @@ function pgfx_filllegend!(series_opt, opt)
               }""")
 end
 
+# Generates a colormap for pgfplots based on a ColorGradient
 pgfx_colormap(cl::PlotUtils.AbstractColorList) = pgfx_colormap(color_list(cl))
 function pgfx_colormap(v::Vector{<:Colorant})
     join(map(v) do c

src/backends/plotly.jl

@@ -662,7 +662,7 @@ function plotly_series(plt::Plot, series::Series)
 end
 
 function plotly_series_shapes(plt::Plot, series::Series, clims)
-    segments = collect(series_segments(series))
+    segments = series_segments(series)
     plotattributes_outs = Vector{KW}(undef, length(segments))
 
     # TODO: create a plotattributes_out for each polygon
@@ -681,7 +681,7 @@ function plotly_series_shapes(plt::Plot, series::Series, clims)
         for (letter, data) in zip((:x, :y), shape_data(series, 100))
     )
 
-    for segment in segments
+    for (k, segment) in enumerate(segments)
         i, rng = segment.attr_index, segment.range
         length(rng) < 2 && continue
 
@@ -701,10 +701,10 @@ function plotly_series_shapes(plt::Plot, series::Series, clims)
                 :dash => string(get_linestyle(series, i)),
             )
         end
-        plotattributes_out[:showlegend] = i==1 ? should_add_to_legend(series) : false
+        plotattributes_out[:showlegend] = k==1 ? should_add_to_legend(series) : false
         plotly_polar!(plotattributes_out, series)
         plotly_hover!(plotattributes_out, _cycle(series[:hover], i))
-        plotattributes_outs[i] = plotattributes_out
+        plotattributes_outs[k] = plotattributes_out
     end
     if series[:fill_z] !== nothing
         push!(plotattributes_outs, plotly_colorbar_hack(series, plotattributes_base, :fill))

src/backends/pyplot.jl

@@ -759,7 +759,7 @@ function py_surround_latextext(latexstring, env)
 end
 
 
-function py_set_ticks(ax, ticks, letter, env)
+function py_set_ticks(sp, ax, ticks, letter, env)
     ticks == :auto && return
     axis = getproperty(ax, Symbol(letter,"axis"))
     if ticks == :none || ticks === nothing || ticks == false
@@ -777,7 +777,7 @@ function py_set_ticks(ax, ticks, letter, env)
     elseif ttype == :ticks_and_labels
         axis."set_ticks"(ticks[1])
 
-        if pyrcparams["text.usetex"]
+        if get(sp[:extra_kwargs], :rawticklabels, false)
             tick_labels = ticks[2]
         else
             tick_labels = [py_surround_latextext(ticklabel, env) for ticklabel in ticks[2]]
@@ -1009,7 +1009,7 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
                 ticks_letter=:y
             end
             py_set_scale(cb.ax, sp, sp[:colorbar_scale], ticks_letter)
-            sp[:colorbar_ticks] == :native ? nothing : py_set_ticks(cb.ax, ticks, ticks_letter, env)
+            sp[:colorbar_ticks] == :native ? nothing : py_set_ticks(sp, cb.ax, ticks, ticks_letter, env)
 
             for lab in cbar_axis."get_ticklabels"()
                   lab."set_fontsize"(py_thickness_scale(plt, sp[:colorbar_tickfontsize]))
@@ -1131,7 +1131,7 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
             # workaround to set mathtext.fontspec per Text element
             env = "\\mathregular"  # matches the outer fonts https://matplotlib.org/tutorials/text/mathtext.html
 
-            axis[:ticks] == :native ? nothing : py_set_ticks(ax, ticks, letter, env)
+            axis[:ticks] == :native ? nothing : py_set_ticks(sp, ax, ticks, letter, env)
             # Tick marks
             intensity = 0.5  # This value corresponds to scaling of other grid elements
             pyaxis."set_tick_params"(

src/recipes.jl

@@ -165,16 +165,44 @@ end
     x := x
     y := y
     seriestype := :scatter
+    @series begin
+        ()
+    end
     @series begin
         seriestype := :path
         label := ""
         primary := false
         ()
     end
+    primary := false
     ()
 end
 @deps scatterpath path scatter
 
+
+# ---------------------------------------------------------------------------
+# regression line and scatter
+
+# plots line corresponding to linear regression of y on a constant and x
+@recipe function f(::Type{Val{:linearfit}}, x, y, z)
+    x := x
+    y := y
+    seriestype := :scatter
+    @series begin
+        ()
+    end
+    @series begin
+        y := mean(y) .+ cov(x, y) / var(x) .* (x .- mean(x))
+        seriestype := :path
+        label := ""
+        primary := false
+        ()
+    end
+    primary := false
+    ()
+end
+
+
 @specialize
 
 

test/test_axes.jl

@@ -21,3 +21,13 @@ end # testset
     @test Plots.get_ticks(p2[1], p2[1][:xaxis])[2] == string.('C':3:'Z')
     @test Plots.get_ticks(p3[1], p3[1][:xaxis])[2] == string.('A':'Z')
 end
+
+@testset "Ticks getter functions" begin
+    ticks1 = ([1,2,3], ("a","b","c"))
+    ticks2 = ([4,5], ("e","f"))
+    p1 = plot(1:5, 1:5, 1:5, xticks=ticks1, yticks=ticks1, zticks=ticks1)
+    p2 = plot(1:5, 1:5, 1:5, xticks=ticks2, yticks=ticks2, zticks=ticks2)
+    p = plot(p1, p2)
+    @test xticks(p) == yticks(p) == zticks(p) == [ticks1, ticks2]
+    @test xticks(p[1]) == yticks(p[1]) == zticks(p[1]) == ticks1
+end