v0.4.3

S -> s

.github/workflows/ci.yml

@@ -13,6 +13,5 @@ jobs:
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
-      - run: gem install bundler
+          bundler-cache: true
-      - run: bundle install
       - run: bundle exec rake test

Gemfile

@@ -4,3 +4,9 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in youplot.gemspec
 gemspec
+
+group :test do
+  gem 'rake'
+  gem 'simplecov'
+  gem 'test-unit'
+end

README.md

@@ -7,7 +7,7 @@
   <a href="https://rubydoc.info/gems/youplot/"><img alt="Docs Stable" src="https://img.shields.io/badge/docs-stable-blue.svg"></a>
   <a href="LICENSE.txt"><img alt="The MIT License" src="https://img.shields.io/badge/license-MIT-blue.svg"></a>
   
-  YouPlot is a command line tool that draws plots in the terminal.
+  YouPlot is a command line tool that draws plots on the terminal.
 
   :bar_chart: Powered by [UnicodePlot](https://github.com/red-data-tools/unicode_plot.rb)
 </div>
@@ -189,7 +189,7 @@ The following sub-commands are available.
   * The `--help` option will show more detailed options for each subcommand.
   * `uplot hist --help`
 
-### Set columns as x-axis or y-axis?
+### Set columns as x-axis or y-axis
 
 * YouPlot treats the first column as the X axis and the second column as the Y axis. When working with multiple series, the first column is the X axis, the second column is series Y1, the third column is series Y2, and so on. 
 * If you pass only one column of data for `line` and `bar`, YouPlot will automatically use a sequential number starting from 1 as the X-axis. 
@@ -203,7 +203,7 @@ The following sub-commands are available.
 
 ### Categorical data
 
-* With gne datamash, you can manage to handle categorized data. 
+* With GNU datamash, you can manage to handle categorized data. 
   * `cat test/fixtures/iris.csv | sed '/^$/d' | datamash --header-in --output-delimiter=: -t, -g5 collapse 3,4 | cut -f2-3 -d: | sed 's/:/\n/g' | uplot s -d, -T --fmt xyxy`
   * This is not so easy...
 

lib/youplot.rb

@@ -6,6 +6,12 @@ require_relative 'youplot/parameters'
 require_relative 'youplot/command'
 
 module YouPlot
+  # @run_as_executable = true / false
+  # YouPlot behaves slightly differently when run as a command line tool
+  # and when run as a script (e.g. for testing). In the event of an error,
+  # when run as a command line tool, YouPlot will display a short error message
+  # and exit abnormally. When run as a script, it will just raise an error.
+  @run_as_executable = false
   class << self
     attr_accessor :run_as_executable
 
@@ -13,5 +19,4 @@ module YouPlot
       @run_as_executable
     end
   end
-  @run_as_executable = false
 end

lib/youplot/backends/unicode_plot.rb

@@ -127,11 +127,10 @@ module YouPlot
 
       def plot_xyxy(data, method1, params)
         headers = data.headers
-        series = data.series
+        series2 = data.series
+                      .map { |s| s.map(&:to_f) }
+                      .each_slice(2).to_a
         method2 = get_method2(method1)
-        series.map! { |s| s.map(&:to_f) }
-        series2 = series.each_slice(2).to_a
-        series = nil
         params.name ||= headers[0] if headers
         params.xlim ||= series2.map(&:first).flatten.minmax # why need?
         params.ylim ||= series2.map(&:last).flatten.minmax # why need?

lib/youplot/parser.rb

@@ -95,7 +95,7 @@ module YouPlot
         parser.on('-M', '--monochrome', TrueClass, 'no colouring even if writing to a tty') do |_v|
           UnicodePlot::IOContext.define_method(:color?) { false } # FIXME
         end
-        parser.on('--encoding STR', String, 'Specify the input encoding') do |v|
+        parser.on('--encoding STR', String, 'specify the input encoding') do |v|
           options[:encoding] = v
         end
         # Optparse adds the help option, but it doesn't show up in usage.

lib/youplot/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module YouPlot
-  VERSION = '0.4.2'
+  VERSION = '0.4.3'
 end

youplot.gemspec

@@ -19,10 +19,5 @@ Gem::Specification.new do |spec|
   spec.executables   = %w[uplot youplot]
   spec.require_paths = ['lib']
 
-  spec.add_runtime_dependency 'unicode_plot'
+  spec.add_dependency 'unicode_plot', '>= 0.0.5'
-  spec.add_development_dependency 'bundler'
-  spec.add_development_dependency 'rake'
-  spec.add_development_dependency 'rubocop'
-  spec.add_development_dependency 'simplecov'
-  spec.add_development_dependency 'test-unit'
 end