Class: RequestSample

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/request_sample.rb

Instance Method Summary collapse

Instance Method Details

#custom_household_frequency ⇒ Object 



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# File 'app/models/request_sample.rb', line 11

def custom_household_frequency
  self.sample.h_records / self.custom_sampling_ratio
end

#custom_percent_density ⇒ Object 



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# File 'app/models/request_sample.rb', line 15

def custom_percent_density
  self.sample.density / self.custom_sampling_ratio
end

#custom_person_frequency ⇒ Object 



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# File 'app/models/request_sample.rb', line 7

def custom_person_frequency
  self.sample.p_records / self.custom_sampling_ratio
end

#generate_first_household_sampled ⇒ Object

compute random first hh to sample



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# File 'app/models/request_sample.rb', line 20

def generate_first_household_sampled

  # max_household is equal to ceiling(custom_sampling_ratio)
  max_household = custom_sampling_ratio.ceil

  # first_household-sampled should be at least 1 but no greater than the max_household
  self.first_household_sampled = rand(max_household) + 1;
end