class Charty::TableAdapters::DatasetsAdapter
Public Class Methods
new(dataset)
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# File lib/charty/table_adapters/datasets_adapter.rb, line 13 def initialize(dataset) @table = dataset.to_table @records = [] self.columns = self.column_names self.index = 0 ... length end
supported?(data)
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# File lib/charty/table_adapters/datasets_adapter.rb, line 8 def self.supported?(data) defined?(Datasets::Dataset) && data.is_a?(Datasets::Dataset) end
Public Instance Methods
[](row, column)
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@param [Integer] row Row index @param [Symbol,String,Integer] column Column index
# File lib/charty/table_adapters/datasets_adapter.rb, line 45 def [](row, column) if row record = @table.find_record(row) return nil if record.nil? record[column] else Vector.new(@table[column], index: index, name: column) end end
column_length()
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# File lib/charty/table_adapters/datasets_adapter.rb, line 25 def column_length column_names.length end
column_names()
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# File lib/charty/table_adapters/datasets_adapter.rb, line 29 def column_names @table.column_names end
data()
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# File lib/charty/table_adapters/datasets_adapter.rb, line 21 def data @table end
each(&block)
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# File lib/charty/table_adapters/datasets_adapter.rb, line 37 def each(&block) return to_enum(__method__) unless block_given? @table.each_record(&block) end
length()
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# File lib/charty/table_adapters/datasets_adapter.rb, line 33 def length data.n_rows end