Sha256: 34fbd1c1a36f818c5a5076b1e55dd248dbfe72392f36980a2cd7a32093414f83
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Versions: 6
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Contents
require 'scores_table.rb'
module FuzzyRealty
RULES = lambda do
rules = {
# Not yet implemented
#:bathrooms => ,
#:bedrooms => ,
#:garage => ,
#:deck => ,
# Price is match when desired is 90-105% of actual. Otherwise give a
# reduced factor.
:price =>
lambda do |listing,desired|
puts "Called price" if $debug
actual = listing.price.to_f
result = if (desired*0.90..desired*1.05) === actual
1.0
else
1 - ((desired - actual) / actual).abs
end
puts result if $debug
result
end,
# Location calc. does lookup to find score for desired and actual
## Currently just return 1 if exact, 0 otherwise
:location =>
lambda do |listing,desired|
puts "Called location" if $debug
# Perform a quick lookup (i.e. FuzzyRealty::LOCN[:A][:A] => 1.0)
puts FuzzyRealty::LOCN[desired.to_sym][listing.location.to_sym] if $debug
FuzzyRealty::LOCN[desired.to_sym][listing.location.to_sym]
end,
:sqft =>
lambda do |listing,desired|
puts "Called sqft" if $debug
actual = listing.sqft
result = if (actual + 50) >= desired
1.0
elsif (actual + 150) >= desired
0.8
elsif (actual + 300) >= desired
0.5
else
0.0
end
puts result if $debug
result
end,
# Style's follow lookup table similar to Location
:style =>
lambda do |listing,desired|
puts "Called style" if $debug
desired = FuzzyRealty::STYLE[:Symbol][desired]
actual = FuzzyRealty::STYLE[:Symbol][listing.style]
puts FuzzyRealty::STYLE[desired][actual] if $debug
FuzzyRealty::STYLE[desired][actual]
end
}
rules.default = lambda {|a,b| raise "Invalid type used in rule lookup"}
rules
end.call
end
Version data entries
6 entries across 6 versions & 1 rubygems