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#!/usr/bin/env ruby
# Example of using libfityk from ruby.
# To run this example, you need fityk extension for Ruby: after compiling
# fityk go to src/, run "make ruby" and copy swig/fityk.so.
require 'fityk'
class GaussianFitter < Fityk::Fityk
def initialize(filename)
super()
raise "File `#{filename}' not found." unless File::exists? filename
@filename = filename
execute("@0 < '#{filename}'")
puts "Data info: " + get_info("data", 0)
end
def run()
execute("guess %gauss = Gaussian")
puts "Fitting #{@filename}..."
execute("fit")
puts "WSSR=%g" % get_wssr()
puts "Gaussian center: %.5g" % calculate_expr("%gauss.center")
end
def save_session(filename)
execute("info state >'%s'" % filename)
end
end
f = Fityk::Fityk.new
puts f.get_info("version")
puts "ln(2) = %.9f" % f.calculate_expr("ln(2)")
f = nil
gauss = GaussianFitter.new("nacl01.dat")
gauss.run()
gauss.save_session("tmp_save.fit")
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