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Add reverse to count

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This commit is contained in:
kojix2 2021-05-31 22:50:11 +09:00
parent 49626d54e1
commit 4651c697d4
7 changed files with 89 additions and 28 deletions
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14
lib/youplot/backends/processing.rb
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@ -6,22 +6,30 @@ module YouPlot
module Processing
module_function
def count_values(arr, tally: true)
def count_values(arr, tally: true, reverse: false)
# tally was added in Ruby 2.7
result = \
if tally && Enumerable.method_defined?(:tally)
arr.tally
else
# value_counts Enumerable::Statistics
arr.value_counts(dropna: false)
end
.sort do |a, b|
# sorting
result = result.sort do |a, b|
# compare values
r = b[1] <=> a[1]
# If the values are the same, compare by name
r = a[0] <=> b[0] if r == 0
r
end
.transpose
# --reverse option
result.reverse! if reverse
# prepare for barplot
result.transpose
end
end
end

4
lib/youplot/backends/unicode_plot.rb
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@ -14,12 +14,12 @@ module YouPlot
module_function
def barplot(data, params, fmt = nil, count: false)
def barplot(data, params, fmt = nil, count: false, reverse: false)
headers = data.headers
series = data.series
# `uplot count`
if count
series = Processing.count_values(series[0])
series = Processing.count_values(series[0], reverse: reverse)
params.title = headers[0] if headers
end
if series.size == 1

2
lib/youplot/command.rb
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@ -146,7 +146,7 @@ module YouPlot
when :bar, :barplot
@backend.barplot(data, params, options[:fmt])
when :count, :c
@backend.barplot(data, params, count: true)
@backend.barplot(data, params, count: true, reverse: options[:reverse])
when :hist, :histogram
@backend.histogram(data, params)
when :line, :lineplot

3
lib/youplot/options.rb
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@ -11,7 +11,8 @@ module YouPlot
:fmt,
:progressive,
:encoding,
:color_names,
:reverse, # count
:color_names, # color
:debug,
keyword_init: true
)

9
lib/youplot/parser.rb
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@ -23,6 +23,7 @@ module YouPlot
fmt: 'xyy',
progressive: false,
encoding: nil,
reverse: false,
color_names: false,
debug: false
)
@ -163,7 +164,8 @@ module YouPlot
end
def sub_parser_add_canvas
sub_parser.on_head('--canvas STR', String, 'type of canvas') do |v|
canvas_types = UnicodePlot::Canvas::CANVAS_CLASS_MAP.keys.join(", ")
sub_parser.on_head('--canvas STR', String, "type of canvas", "(#{canvas_types})") do |v|
params.canvas = v.to_sym
end
end
@ -226,6 +228,9 @@ module YouPlot
sub_parser_add_xscale
when :count, :c
sub_parser.on_head('-r', '--reverse', TrueClass, 'reverse the result of comparisons') do |v|
options.reverse = v
end
sub_parser_add_symbol
sub_parser_add_xscale
@ -270,7 +275,7 @@ module YouPlot
sub_parser_add_xlim
when :colors, :color, :colours, :colour
sub_parser.on_head('-n', '--names', 'show color names only', TrueClass) do |v|
sub_parser.on_head('-n', '--names', TrueClass, 'show color names only') do |v|
options[:color_names] = v
end

38
test/fixtures/iris-count.txt vendored Normal file
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@ -0,0 +1,38 @@
sepal_length
┌ ┐
5.0 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 10.0
5.1 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 9.0
6.3 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 9.0
5.7 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■ 8.0
6.7 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■ 8.0
5.5 ┤■■■■■■■■■■■■■■■■■■■■■■■■ 7.0
5.8 ┤■■■■■■■■■■■■■■■■■■■■■■■■ 7.0
6.4 ┤■■■■■■■■■■■■■■■■■■■■■■■■ 7.0
4.9 ┤■■■■■■■■■■■■■■■■■■■■ 6.0
5.4 ┤■■■■■■■■■■■■■■■■■■■■ 6.0
5.6 ┤■■■■■■■■■■■■■■■■■■■■ 6.0
6.0 ┤■■■■■■■■■■■■■■■■■■■■ 6.0
6.1 ┤■■■■■■■■■■■■■■■■■■■■ 6.0
4.8 ┤■■■■■■■■■■■■■■■■■ 5.0
6.5 ┤■■■■■■■■■■■■■■■■■ 5.0
4.6 ┤■■■■■■■■■■■■■■ 4.0
5.2 ┤■■■■■■■■■■■■■■ 4.0
6.2 ┤■■■■■■■■■■■■■■ 4.0
6.9 ┤■■■■■■■■■■■■■■ 4.0
7.7 ┤■■■■■■■■■■■■■■ 4.0
4.4 ┤■■■■■■■■■■ 3.0
5.9 ┤■■■■■■■■■■ 3.0
6.8 ┤■■■■■■■■■■ 3.0
7.2 ┤■■■■■■■■■■ 3.0
4.7 ┤■■■■■■■ 2.0
6.6 ┤■■■■■■■ 2.0
4.3 ┤■■■ 1.0
4.5 ┤■■■ 1.0
5.3 ┤■■■ 1.0
7.0 ┤■■■ 1.0
7.1 ┤■■■ 1.0
7.3 ┤■■■ 1.0
7.4 ┤■■■ 1.0
7.6 ┤■■■ 1.0
7.9 ┤■■■ 1.0
└ ┘

25
test/youplot/iris_test.rb
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@ -40,6 +40,8 @@ class YouPlotIRISTest < Test::Unit::TestCase
assert_equal fixture('iris-barplot.txt'), @stderr_file.read
end
# barplot doesn't make sense, but just to make sure it works.
test :bar do
YouPlot::Command.new(['bar', '-H', '-d,', '-t', 'IRIS-BARPLOT']).run
assert_equal fixture('iris-barplot.txt'), @stderr_file.read
@ -55,6 +57,8 @@ class YouPlotIRISTest < Test::Unit::TestCase
assert_equal fixture('iris-histogram.txt'), @stderr_file.read
end
# Yeah, lineplot/lineplots don't make sense too.
test :lineplot do
YouPlot::Command.new(['lineplot', '-H', '-d,', '-t', 'IRIS-LINEPLOT']).run
assert_equal fixture('iris-lineplot.txt'), @stderr_file.read
@ -105,15 +109,20 @@ class YouPlotIRISTest < Test::Unit::TestCase
assert_equal fixture('iris-boxplot.txt'), @stderr_file.read
end
# test :c do
# YouPlot::Command.new(['count', '-H', '-d,']).run
# assert_equal fixture('iris-count.txt'), @stderr_file.read
# end
# Yeah, lineplot/lineplots don't make sense too.
# Just checking the behavior.
# test :count do
# YouPlot::Command.new(['c', '-H', '-d,']).run
# assert_equal fixture('iris-count.txt'), @stderr_file.read
# end
test :c do
YouPlot::Command.new(['count', '-H', '-d,']).run
assert_equal fixture('iris-count.txt'), @stderr_file.read
end
test :count do
YouPlot::Command.new(['c', '-H', '-d,']).run
assert_equal fixture('iris-count.txt'), @stderr_file.read
end
# Output options.
test :plot_output_stdout do
YouPlot::Command.new(['bar', '-o', '-H', '-d,', '-t', 'IRIS-BARPLOT']).run