Add formatador and nyaplot to runtime dependencies and implement Data…

…Frame#to_s and Series#to_s

lib/mikon/core/dataframe.rb

@@ -1,4 +1,5 @@
 require 'securerandom'
+require 'formatador'
 require 'json'
 require 'csv'
 
@@ -182,6 +183,18 @@ def to_html(threshold=50)
       html += "</table>"
     end
 
+    def to_s(threshold=50)
+      arr = []
+      self.each_row.with_index do |row, pos|
+        next nil if pos > threshold && pos != self.length-1
+        arr.push({"" => @index[pos]}.merge(row.to_hash))
+        if pos == threshold
+            arr.push(@labels.reduce({"" => "..."}){|memo, label| memo[label] = "..."; memo})
+        end
+      end
+      Formatador.display_table(arr.select{|el| !(el.nil?)})
+    end
+
     def select(&block)
       return self.to_enum(:select) unless block_given?
       rows = []

lib/mikon/core/series.rb

@@ -47,7 +47,7 @@ def [](arg)
       @data[pos]
     end
 
-    def to_html(threshold=3)
+    def to_html(threshold=5)
       html = "<table><tr><th></th><th>" + self.name.to_s + "</th></tr>"
       @index.each.with_index do |index, pos|
         next if pos > threshold && pos != self.length-1
@@ -57,6 +57,16 @@ def to_html(threshold=3)
       html + "</table>"
     end
 
+    def to_s(threshold=5)
+      arr = []
+      @index.each.with_index do |index, pos|
+        next nil if pos > threshold && pos != self.length-1
+        arr.push({"" => index, @name => @data[pos]})
+        arr.push({"" => "...", @name => "..."}) if pos == threshold
+      end
+      Formatador.display_table(arr.select{|el| !(el.nil?)})
+    end
+
     def name(new_name=nil)
       if new_name.nil?
         @name

mikon.gemspec

@@ -19,6 +19,8 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "nmatrix", "~> 0.1.0.rc5"
+  spec.add_runtime_dependency "formatador", "~> 0.2.5"
+  spec.add_runtime_dependency "nyaplot", "~> 0.1.1"
   spec.add_development_dependency "bundler", "~> 1.5"
   spec.add_development_dependency "rake"
 end