Class: FlexStationData::Presenters::SampleRegressionHash

Inherits:
Object
  • Object
show all
Includes:
Callable[:present]
Defined in:
lib/flex_station_data/presenters/sample_regression_hash.rb

Constant Summary collapse

PRODUCTS = 
{
  slope:     "slope",
  intercept: "intercept",
  r_squared: "R²",
  quality:   "quality"
}.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(times, *sample_values, min_r_squared: nil, **options) ⇒ SampleRegressionHash

Returns a new instance of SampleRegressionHash.



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 20

def initialize(times, *sample_values, min_r_squared: nil, **options)
  @times = times
  @sample_values = sample_values
  @min_r_squared = min_r_squared
  @options = options
end

Instance Attribute Details

#min_r_squared ⇒ Object (readonly)

Returns the value of attribute min_r_squared.



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 18

def min_r_squared
  @min_r_squared
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 18

def options
  @options
end

#sample_values ⇒ Object (readonly)

Returns the value of attribute sample_values.



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 18

def sample_values
  @sample_values
end

#times ⇒ Object (readonly)

Returns the value of attribute times.



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 18

def times
  @times
end

Class Method Details

.headers ⇒ Object 



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 39

def self.headers
  PRODUCTS.values
end

Instance Method Details

#present ⇒ Object 



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 33

def present
  PRODUCTS.each_with_object({}) do |(method, label), memo|
    memo[label] = sample_regressions.map(&method)
  end
end

#sample_regressions ⇒ Object 



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# File 'lib/flex_station_data/presenters/sample_regression_hash.rb', line 27

def sample_regressions
  @sample_regressions ||= sample_values.map do |values|
    FlexStationData::LinearRegression.new(times, values, min_r_squared: min_r_squared)
  end
end