module Split::DashboardHelpers

Public Instance Methods

confidence_level(z_score) click to toggle source
# File lib/split/dashboard/helpers.rb, line 28
def confidence_level(z_score)
  return z_score if z_score.is_a? String

  z = round(z_score.to_s.to_f, 3).abs

  if z >= 2.58
    '99% confidence'
  elsif z >= 1.96
    '95% confidence'
  elsif z >= 1.65
    '90% confidence'
  else
    'Insufficient confidence'
  end

end
h(text) click to toggle source
# File lib/split/dashboard/helpers.rb, line 4
def h(text)
  Rack::Utils.escape_html(text)
end
number_to_percentage(number, precision = 2) click to toggle source
# File lib/split/dashboard/helpers.rb, line 16
def number_to_percentage(number, precision = 2)
  round(number * 100)
end
path_prefix() click to toggle source
# File lib/split/dashboard/helpers.rb, line 12
def path_prefix
  request.env['SCRIPT_NAME']
end
round(number, precision = 2) click to toggle source
# File lib/split/dashboard/helpers.rb, line 20
def round(number, precision = 2)
  begin
    BigDecimal(number.to_s)
  rescue ArgumentError
    BigDecimal(0)
  end.round(precision).to_f
end
url(*path_parts) click to toggle source
# File lib/split/dashboard/helpers.rb, line 8
def url(*path_parts)
  [ path_prefix, path_parts ].join("/").squeeze('/')
end