mantao/Plots.jl
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Merge pull request #1278 from JackDevine/master

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Examples are limited to 90 columns.
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Daniel Schwabeneder 2017-12-05 16:53:41 +01:00 committed by GitHub
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src/examples.jl
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@ -18,7 +18,14 @@ PlotExample("Lines",
),
PlotExample("Functions, adding data, and animations",
"Plot multiple functions. You can also put the function first, or use the form `plot(f, xmin, xmax)` where f is a Function or AbstractVector{Function}.\n\nGet series data: `x, y = plt[i]`. Set series data: `plt[i] = (x,y)`. Add to the series with `push!`/`append!`.\n\nEasily build animations. (`convert` or `ffmpeg` must be available to generate the animation.) Use command `gif(anim, filename, fps=15)` to save the animation.",
"""
Plot multiple functions. You can also put the function first, or use the form `plot(f,
xmin, xmax)` where f is a Function or AbstractVector{Function}.\n\nGet series data:
`x, y = plt[i]`. Set series data: `plt[i] = (x,y)`. Add to the series with
`push!`/`append!`.\n\nEasily build animations. (`convert` or `ffmpeg` must be available
to generate the animation.) Use command `gif(anim, filename, fps=15)` to save the
animation.
""",
[:(begin
p = plot([sin,cos], zeros(0), leg=false)
anim = Animation()
@ -37,19 +44,31 @@ PlotExample("Parametric plots",
),
PlotExample("Colors",
"Access predefined palettes (or build your own with the `colorscheme` method). Line/marker colors are auto-generated from the plot's palette, unless overridden. Set the `z` argument to turn on series gradients.",
"""
Access predefined palettes (or build your own with the `colorscheme` method).
Line/marker colors are auto-generated from the plot's palette, unless overridden. Set
the `z` argument to turn on series gradients.
""",
[:(begin
y = rand(100)
plot(0:10:100,rand(11,4),lab="lines",w=3,palette=:grays,fill=0, α=0.6)
scatter!(y, zcolor=abs.(y-.5), m=(:heat,0.8,stroke(1,:green)), ms=10*abs.(y-0.5)+4, lab="grad")
scatter!(y, zcolor=abs.(y-.5), m=(:heat,0.8,stroke(1,:green)), ms=10*abs.(y-0.5)+4,
lab="grad")
end)]
),
PlotExample("Global",
"Change the guides/background/limits/ticks. Convenience args `xaxis` and `yaxis` allow you to pass a tuple or value which will be mapped to the relevant args automatically. The `xaxis` below will be replaced with `xlabel` and `xlims` args automatically during the preprocessing step. You can also use shorthand functions: `title!`, `xaxis!`, `yaxis!`, `xlabel!`, `ylabel!`, `xlims!`, `ylims!`, `xticks!`, `yticks!`",
"""
Change the guides/background/limits/ticks. Convenience args `xaxis` and `yaxis` allow
you to pass a tuple or value which will be mapped to the relevant args automatically.
The `xaxis` below will be replaced with `xlabel` and `xlims` args automatically during
the preprocessing step. You can also use shorthand functions: `title!`, `xaxis!`,
`yaxis!`, `xlabel!`, `ylabel!`, `xlims!`, `ylims!`, `xticks!`, `yticks!`
""",
[:(begin
y = rand(20,3)
plot(y, xaxis=("XLABEL",(-5,30),0:2:20,:flip), background_color = RGB(0.2,0.2,0.2), leg=false)
plot(y, xaxis=("XLABEL",(-5,30),0:2:20,:flip), background_color = RGB(0.2,0.2,0.2),
leg=false)
hline!(mean(y,1)+rand(1,3), line=(4,:dash,0.6,[:lightgreen :green :darkgreen]))
vline!([5,10])
title!("TITLE")
@ -73,7 +92,14 @@ PlotExample("Images",
),
PlotExample("Arguments",
"Plot multiple series with different numbers of points. Mix arguments that apply to all series (marker/markersize) with arguments unique to each series (colors). Special arguments `line`, `marker`, and `fill` will automatically figure out what arguments to set (for example, we are setting the `linestyle`, `linewidth`, and `color` arguments with `line`.) Note that we pass a matrix of colors, and this applies the colors to each series.",
"""
Plot multiple series with different numbers of points. Mix arguments that apply to all
series (marker/markersize) with arguments unique to each series (colors). Special
arguments `line`, `marker`, and `fill` will automatically figure out what arguments to
set (for example, we are setting the `linestyle`, `linewidth`, and `color` arguments with
`line`.) Note that we pass a matrix of colors, and this applies the colors to each
series.
""",
[:(begin
ys = Vector[rand(10), rand(20)]
plot(ys, color=[:black :orange], line=(:dot,4), marker=([:hex :d],12,0.8,stroke(3,:gray)))
@ -115,7 +141,8 @@ PlotExample("Line types",
PlotExample("Line styles",
"",
[:(begin
styles = filter(s -> s in Plots.supported_styles(), [:solid, :dash, :dot, :dashdot, :dashdotdot])
styles = filter(s -> s in Plots.supported_styles(),
[:solid, :dash, :dot, :dashdot, :dashdotdot])
styles = reshape(styles, 1, length(styles)) # Julia 0.6 unfortunately gives an error when transposing symbol vectors
n = length(styles)
y = cumsum(randn(20,n),1)
@ -151,18 +178,24 @@ PlotExample("Histogram",
PlotExample("Subplots",
"""
Use the `layout` keyword, and optionally the convenient `@layout` macro to generate arbitrarily complex subplot layouts.
Use the `layout` keyword, and optionally the convenient `@layout` macro to generate
arbitrarily complex subplot layouts.
""",
[:(begin
l = @layout([a{0.1h}; b [c;d e]])
plot(randn(100,5), layout=l, t=[:line :histogram :scatter :steppre :bar], leg=false, ticks=nothing, border=:none)
plot(randn(100,5), layout=l, t=[:line :histogram :scatter :steppre :bar], leg=false,
ticks=nothing, border=:none)
end)]
),
PlotExample("Adding to subplots",
"Note here the automatic grid layout, as well as the order in which new series are added to the plots.",
"""
Note here the automatic grid layout, as well as the order in which new series are added
to the plots.
""",
[:(begin
plot(Plots.fakedata(100,10), layout=4, palette=[:grays :blues :heat :lightrainbow], bg_inside=[:orange :pink :darkblue :black])
plot(Plots.fakedata(100,10), layout=4, palette=[:grays :blues :heat :lightrainbow],
bg_inside=[:orange :pink :darkblue :black])
end)]
),
@ -175,30 +208,47 @@ PlotExample("",
),
PlotExample("Open/High/Low/Close",
"Create an OHLC chart. Pass in a list of (open,high,low,close) tuples as your `y` argument. This uses recipes to first convert the tuples to OHLC objects, and subsequently create a :path series with the appropriate line segments.",
"""
Create an OHLC chart. Pass in a list of (open,high,low,close) tuples as your `y`
argument. This uses recipes to first convert the tuples to OHLC objects, and
subsequently create a :path series with the appropriate line segments.
""",
[:(begin
n=20
hgt=rand(n)+1
bot=randn(n)
openpct=rand(n)
closepct=rand(n)
y = OHLC[(openpct[i]*hgt[i]+bot[i], bot[i]+hgt[i], bot[i], closepct[i]*hgt[i]+bot[i]) for i in 1:n]
y = OHLC[(openpct[i]*hgt[i]+bot[i], bot[i]+hgt[i], bot[i],
closepct[i]*hgt[i]+bot[i]) for i in 1:n]
ohlc(y)
end)]
),
PlotExample("Annotations",
"The `annotations` keyword is used for text annotations in data-coordinates. Pass in a tuple (x,y,text) or a vector of annotations. `annotate!(ann)` is shorthand for `plot!(; annotation=ann)`. Series annotations are used for annotating individual data points. They require only the annotation... x/y values are computed. A `PlotText` object can be build with the method `text(string, attr...)`, which wraps font and color attributes.",
"""
The `annotations` keyword is used for text annotations in data-coordinates. Pass in a
tuple (x,y,text) or a vector of annotations. `annotate!(ann)` is shorthand for `plot!(;
annotation=ann)`. Series annotations are used for annotating individual data points.
They require only the annotation... x/y values are computed. A `PlotText` object can be
build with the method `text(string, attr...)`, which wraps font and color attributes.
""",
[:(begin
y = rand(10)
plot(y, annotations = (3,y[3],text("this is #3",:left)), leg=false)
annotate!([(5, y[5], text("this is #5",16,:red,:center)), (10, y[10], text("this is #10",:right,20,"courier"))])
scatter!(linspace(2,8,6), rand(6), marker=(50,0.2,:orange), series_annotations = ["series","annotations","map","to","series",text("data",:green)])
annotate!([(5, y[5], text("this is #5",16,:red,:center)),
(10, y[10], text("this is #10",:right,20,"courier"))])
scatter!(linspace(2,8,6), rand(6), marker=(50,0.2,:orange),
series_annotations = ["series","annotations","map","to","series",
text("data",:green)])
end)]
),
PlotExample("Custom Markers",
"A `Plots.Shape` is a light wrapper around vertices of a polygon. For supported backends, pass arbitrary polygons as the marker shapes. Note: The center is (0,0) and the size is expected to be rougly the area of the unit circle.",
"""A `Plots.Shape` is a light wrapper around vertices of a polygon. For supported
backends, pass arbitrary polygons as the marker shapes. Note: The center is (0,0) and
the size is expected to be rougly the area of the unit circle.
""",
[:(begin
verts = [(-1.0,1.0),(-1.28,0.6),(-0.2,-1.4),(0.2,-1.4),(1.28,0.6),(1.0,1.0),
(-1.0,1.0),(-0.2,-0.6),(0.0,-0.2),(-0.4,0.6),(1.28,0.6),(0.2,-1.4),
@ -211,7 +261,10 @@ PlotExample("Custom Markers",
),
PlotExample("Contours",
"Any value for fill works here. We first build a filled contour from a function, then an unfilled contour from a matrix.",
"""
Any value for fill works here. We first build a filled contour from a function, then an
unfilled contour from a matrix.
""",
[:(begin
x = 1:0.5:20
y = 1:0.5:10
@ -323,7 +376,11 @@ PlotExample("Animation with subplots",
),
PlotExample("Spy",
"For a matrix `mat` with unique nonzeros `spy(mat)` returns a colorless plot. If `mat` has various different nonzero values, a colorbar is added. The colorbar can be disabled with `legend = nothing`.",
"""
For a matrix `mat` with unique nonzeros `spy(mat)` returns a colorless plot. If `mat` has
various different nonzero values, a colorbar is added. The colorbar can be disabled with
`legend = nothing`.
""",
[:(begin
a = spdiagm((ones(50), ones(49), ones(49), ones(40), ones(40)),(0, 1, -1, 10, -10))
b = spdiagm((1:50, 1:49, 1:49, 1:40, 1:40),(0, 1, -1, 10, -10))
@ -332,7 +389,9 @@ PlotExample("Spy",
),
PlotExample("Magic grid argument",
"The grid lines can be modified individually for each axis with the magic `grid` argument.",
"""
The grid lines can be modified individually for each axis with the magic `grid` argument.
""",
[:(begin
x = rand(10)
p1 = plot(x, title = "Default looks")
@ -344,7 +403,10 @@ PlotExample("Magic grid argument",
),
PlotExample("Framestyle",
"The style of the frame/axes of a (sub)plot can be changed with the `framestyle` attribute. The default framestyle is `:axes`.",
"""
The style of the frame/axes of a (sub)plot can be changed with the `framestyle`
attribute. The default framestyle is `:axes`.
""",
[:(begin
scatter(fill(randn(10), 6), fill(randn(10), 6),
framestyle = [:box :semi :origin :zerolines :grid :none],