Class: PubliSci::Writers::ARFF
- Defined in:
- lib/publisci/writers/arff.rb
Instance Method Summary collapse
-
#build_arff(relation, attributes, data, source) ⇒ Object
include PubliSci::Query include PubliSci::RDFParser include PubliSci::Analyzer.
- #from_store(repo, dataset = nil, title = nil, verbose = false) ⇒ Object
- #from_turtle(turtle_file, verbose = false) ⇒ Object
Methods inherited from Base
#codes, #dataSet, #dimensions, #handle_input, #measures, #observations, #repo_to_ruby, #turtle_to_ruby
Methods included from Analyzer
#check_integrity, #dirty?, #recommend_range, #recommend_range_strings
Methods included from RDFParser
#add_node, #bnode_value, #encode_value, #get_ary, #get_hashes, #is_complex?, #is_uri?, #load_string, #observation_hash, #sanitize, #sanitize_hash, #strip_prefixes, #strip_uri, #to_literal, #to_resource, #turtle_indent
Methods included from Query
#execute, #execute_from_file, #property_names, #property_values, #row_names, #vocabulary
Instance Method Details
#build_arff(relation, attributes, data, source) ⇒ Object
include PubliSci::Query include PubliSci::RDFParser include PubliSci::Analyzer
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# File 'lib/publisci/writers/arff.rb', line 8 def build_arff(relation, attributes, data, source) str = <<-EOS % 1. Title: #{relation.capitalize} Database % % 2. Sources: % (a) Generated from RDF source #{source} % @RELATION #{relation} EOS Hash[attributes.sort].map{|attribute,type| str << "@ATTRIBUTE #{attribute} #{type}\n" } str << "\n@DATA\n" data.map { |d| str << Hash[d[1].sort].values.join(',') + "\n" } str end |
#from_store(repo, dataset = nil, title = nil, verbose = false) ⇒ Object
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# File 'lib/publisci/writers/arff.rb', line 61 def from_store(repo, dataset=nil, title=nil, verbose=false) # data = observation_hash(execute_from_file("observations.rq",repo,:graph,{"%{dataSet}"=>"<#{dataSet}>"}), true) dims = dimensions(repo,dataset) meas = measures(repo,dataset) data = observations(repo,dataset) codes = codes(repo,dataset) attributes = {} (dims | meas).map{|component| attributes[component] = case recommend_range(data.map{|o| o[1][component]}) when "xsd:int" "integer" when "xsd:double" "real" when :coded if dims.include? component "{#{codes[component].join(', ')}}" else "string" end end } dataset = dataSet(repo) unless dataset title = dataset unless title build_arff(title,attributes,data,dataset) end |
#from_turtle(turtle_file, verbose = false) ⇒ Object
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# File 'lib/publisci/writers/arff.rb', line 29 def from_turtle(turtle_file, verbose=false) puts "loading #{turtle_file}" if verbose repo = RDF::Repository.load(turtle_file) puts "loaded #{repo.size} statements into temporary repo" if verbose dims = dimensions(repo) meas = measures(repo) data = observations(repo) relation = dataSet(repo) codes = codes(repo) attributes = {} (dims | meas).map{|component| attributes[component] = case recommend_range(data.map{|o| o[1][component]}) when "xsd:int" "integer" when "xsd:double" "real" when :coded if dims.include? component "{#{codes[component].join(', ')}}" else "string" end end } build_arff(relation, attributes, data, turtle_file) end |