Class: MoreMath::Histogram
Overview
A histogram gives an overview of a sequence’s elements.
Defined Under Namespace
Classes: Bin
Instance Attribute Summary collapse
-
#bins ⇒ Object
readonly
Number of bins for this Histogram.
Instance Method Summary collapse
- #counts ⇒ Object
-
#display(output = $stdout, width = 50) ⇒ Object
Display this histogram to
output
,width
is the parameter forprepare_display
. - #each_bin(&block) ⇒ Object
-
#initialize(sequence, arg = 10) ⇒ Histogram
constructor
Create a Histogram for the elements of
sequence
withbins
bins. - #max_count ⇒ Object
-
#to_a ⇒ Object
Return the computed histogram as an array of Bin objects.
Constructor Details
#initialize(sequence, arg = 10) ⇒ Histogram
Create a Histogram for the elements of sequence
with bins
bins.
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# File 'lib/more_math/histogram.rb', line 7 def initialize(sequence, arg = 10) @with_counts = false if arg.is_a?(Hash) bins = arg.fetch(:bins, 10) wc = arg[:with_counts] and @with_counts = wc else bins = arg end @sequence = sequence @bins = bins @result = compute end |
Instance Attribute Details
#bins ⇒ Object (readonly)
Number of bins for this Histogram.
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# File 'lib/more_math/histogram.rb', line 21 def bins @bins end |
Instance Method Details
#counts ⇒ Object
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# File 'lib/more_math/histogram.rb', line 32 def counts each_bin.map(&:count) end |
#display(output = $stdout, width = 50) ⇒ Object
Display this histogram to output
, width
is the parameter for prepare_display
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# File 'lib/more_math/histogram.rb', line 38 def display(output = $stdout, width = 50) width >= 1 or raise ArgumentError, "width needs to be >= 1" for r in rows output << output_row(r, width) end output << "max_count=#{max_count}\n" self end |
#each_bin(&block) ⇒ Object
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# File 'lib/more_math/histogram.rb', line 28 def each_bin(&block) @result.each(&block) end |
#max_count ⇒ Object
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# File 'lib/more_math/histogram.rb', line 47 def max_count counts.max end |
#to_a ⇒ Object
Return the computed histogram as an array of Bin objects.
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# File 'lib/more_math/histogram.rb', line 24 def to_a @result end |