Class: Pollster::ChartEstimate

Inherits:
Object
  • Object
show all
Defined in:
lib/pollster/models/chart_estimate.rb

Overview

One set of estimates. The first set of estimates on a Chart is the official "Pollster Estimates".

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ ChartEstimate

Initializes the object

Parameters:

  • attributes (Hash) (defaults to: {}) —

    Model attributes in the form of hash



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# File 'lib/pollster/models/chart_estimate.rb', line 50

def initialize(attributes = {})
  return unless attributes.is_a?(Hash)

  # convert string to symbol for hash key
  attributes = attributes.each_with_object({}){|(k,v), h| h[k.to_sym] = v}

  if attributes.has_key?(:'algorithm')
    self.algorithm = attributes[:'algorithm']
  end

  if attributes.has_key?(:'created_at')
    self.created_at = attributes[:'created_at']
  end

  if attributes.has_key?(:'datetime')
    self.datetime = attributes[:'datetime']
  end

  if attributes.has_key?(:'values')
    self.values = attributes[:'values']
  end

  if attributes.has_key?(:'lowess_parameters')
    self.lowess_parameters = attributes[:'lowess_parameters']
  end

  if attributes.has_key?(:'bayesian_kallman_95_percent_intervals')
    self.bayesian_kallman_95_percent_intervals = attributes[:'bayesian_kallman_95_percent_intervals']
  end

end

Instance Attribute Details

#algorithm ⇒ Object

Name of the algorithm that produced these estimates. Possible values are: ‘bayesian-kallman` ([source code](github.com/huffpostdata/pollster-models/tree/master/poll-average), [academic explanation](eppsac.utdallas.edu/files/jackman/CAJP%2040-4%20Jackman.pdf)); `lowess` (locally weighted scatterplot smoothing).



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# File 'lib/pollster/models/chart_estimate.rb', line 7

def algorithm
  @algorithm
end

#bayesian_kallman_95_percent_intervals ⇒ Object

Only present if ‘algorithm` is `bayesian-kallman`. Each key is a response Label. Each value is the `[ low, high ]` of the algorithm’s 95% confidence interval.



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# File 'lib/pollster/models/chart_estimate.rb', line 21

def bayesian_kallman_95_percent_intervals
  @bayesian_kallman_95_percent_intervals
end

#created_at ⇒ Object

The time Pollster produced these estimates. Consider ‘datetime` instead. `datetime` describes what Pollster calculates; `created_at` describes when Pollster made those calculations.



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# File 'lib/pollster/models/chart_estimate.rb', line 10

def created_at
  @created_at
end

#datetime ⇒ Object

The time these ‘values` apply to. For instance, Pollster may run `lowess` (which is deterministic) years after an election; in that case `created_at` will be the date of the `lowess` calculation, and `datetime` will be the election date.



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# File 'lib/pollster/models/chart_estimate.rb', line 13

def datetime
  @datetime
end

#lowess_parameters ⇒ Object

Returns the value of attribute lowess_parameters.



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# File 'lib/pollster/models/chart_estimate.rb', line 18

def lowess_parameters
  @lowess_parameters
end

#values ⇒ Object

Each key is a response Label. Each value is Pollster’s estimate of the polling average for that label. For instance, ‘{ "Clinton": 47.3, "Trump": 42.0, "Other": 5.2 }`. Values often do not add up to 100%. Some Responses on a Question have no corresponding Values, because Pollster sometimes omits Responses from a Chart.



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# File 'lib/pollster/models/chart_estimate.rb', line 16

def values
  @values
end

Class Method Details

.attribute_map ⇒ Object

Attribute mapping from ruby-style variable name to JSON key.



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# File 'lib/pollster/models/chart_estimate.rb', line 25

def self.attribute_map
  {
    :'algorithm' => :'algorithm',
    :'created_at' => :'created_at',
    :'datetime' => :'datetime',
    :'values' => :'values',
    :'lowess_parameters' => :'lowess_parameters',
    :'bayesian_kallman_95_percent_intervals' => :'bayesian_kallman_95_percent_intervals'
  }
end

.swagger_types ⇒ Object

Attribute type mapping.



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# File 'lib/pollster/models/chart_estimate.rb', line 37

def self.swagger_types
  {
    :'algorithm' => :'String',
    :'created_at' => :'DateTime',
    :'datetime' => :'DateTime',
    :'values' => :'Object',
    :'lowess_parameters' => :'ChartEstimateLowessParameters',
    :'bayesian_kallman_95_percent_intervals' => :'Object'
  }
end

Instance Method Details

#==(o) ⇒ Object

Checks equality by comparing each attribute.

Parameters:

  • Object (Object) —

    to be compared



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# File 'lib/pollster/models/chart_estimate.rb', line 97

def ==(o)
  return true if self.equal?(o)
  self.class == o.class &&
      algorithm == o.algorithm &&
      created_at == o.created_at &&
      datetime == o.datetime &&
      values == o.values &&
      lowess_parameters == o.lowess_parameters &&
      bayesian_kallman_95_percent_intervals == o.bayesian_kallman_95_percent_intervals
end

#_deserialize(type, value) ⇒ Object

Deserializes the data based on type

Parameters:

  • string —

    type Data type

  • string —

    value Value to be deserialized

Returns:

  • (Object) —

    Deserialized data



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# File 'lib/pollster/models/chart_estimate.rb', line 144

def _deserialize(type, value)
  case type.to_sym
  when :DateTime
    DateTime.parse(value)
  when :Date
    Date.parse(value)
  when :String
    value.to_s
  when :Integer
    value.to_i
  when :Float
    value.to_f
  when :BOOLEAN
    if value.to_s =~ /\A(true|t|yes|y|1)\z/i
      true
    else
      false
    end
  when :Object
    # generic object (usually a Hash), return directly
    value
  when /\AArray<(?<inner_type>.+)>\z/
    inner_type = Regexp.last_match[:inner_type]
    value.map { |v| _deserialize(inner_type, v) }
  when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
    k_type = Regexp.last_match[:k_type]
    v_type = Regexp.last_match[:v_type]
    {}.tap do |hash|
      value.each do |k, v|
        hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
      end
    end
  else # model
    temp_model = Pollster.const_get(type).new
    temp_model.build_from_hash(value)
  end
end

#_to_hash(value) ⇒ Hash

Outputs non-array value in the form of hash For object, use to_hash. Otherwise, just return the value

Parameters:

  • value (Object) —

    Any valid value

Returns:

  • (Hash) —

    Returns the value in the form of hash



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# File 'lib/pollster/models/chart_estimate.rb', line 210

def _to_hash(value)
  if value.is_a?(Array)
    value.compact.map{ |v| _to_hash(v) }
  elsif value.is_a?(Hash)
    {}.tap do |hash|
      value.each { |k, v| hash[k] = _to_hash(v) }
    end
  elsif value.respond_to? :to_hash
    value.to_hash
  else
    value
  end
end

#build_from_hash(attributes) ⇒ Object

Builds the object from hash

Parameters:

  • attributes (Hash) —

    Model attributes in the form of hash

Returns:

  • (Object) —

    Returns the model itself



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# File 'lib/pollster/models/chart_estimate.rb', line 123

def build_from_hash(attributes)
  return nil unless attributes.is_a?(Hash)
  self.class.swagger_types.each_pair do |key, type|
    if type =~ /\AArray<(.*)>/i
      # check to ensure the input is an array given that the the attribute
      # is documented as an array but the input is not
      if attributes[self.class.attribute_map[key]].is_a?(Array)
        self.send("#{key}=", attributes[self.class.attribute_map[key]].map{ |v| _deserialize($1, v) } )
      end
    elsif !attributes[self.class.attribute_map[key]].nil?
      self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
    end # or else data not found in attributes(hash), not an issue as the data can be optional
  end

  self
end

#eql?(o) ⇒ Boolean

Parameters:

  • Object (Object) —

    to be compared

Returns:

  • (Boolean)

See Also:

  • `==` method


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# File 'lib/pollster/models/chart_estimate.rb', line 110

def eql?(o)
  self == o
end

#hash ⇒ Fixnum

Calculates hash code according to all attributes.

Returns:

  • (Fixnum) —

    Hash code



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# File 'lib/pollster/models/chart_estimate.rb', line 116

def hash
  [algorithm, created_at, datetime, values, lowess_parameters, bayesian_kallman_95_percent_intervals].hash
end

#list_invalid_properties ⇒ Object

Show invalid properties with the reasons. Usually used together with valid?

Returns:

  • Array for valid properies with the reasons



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# File 'lib/pollster/models/chart_estimate.rb', line 84

def list_invalid_properties
  invalid_properties = Array.new
  return invalid_properties
end

#to_body ⇒ Hash

to_body is an alias to to_hash (backward compatibility)

Returns:

  • (Hash) —

    Returns the object in the form of hash



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# File 'lib/pollster/models/chart_estimate.rb', line 190

def to_body
  to_hash
end

#to_hash ⇒ Hash

Returns the object in the form of hash

Returns:

  • (Hash) —

    Returns the object in the form of hash



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# File 'lib/pollster/models/chart_estimate.rb', line 196

def to_hash
  hash = {}
  self.class.attribute_map.each_pair do |attr, param|
    value = self.send(attr)
    next if value.nil?
    hash[param] = _to_hash(value)
  end
  hash
end

#to_s ⇒ String

Returns the string representation of the object

Returns:

  • (String) —

    String presentation of the object



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# File 'lib/pollster/models/chart_estimate.rb', line 184

def to_s
  to_hash.to_s
end

#valid? ⇒ Boolean

Check to see if the all the properties in the model are valid

Returns:

  • (Boolean) —

    true if the model is valid



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# File 'lib/pollster/models/chart_estimate.rb', line 91

def valid?
  return true
end