32651: फ़्लोट के साथ फ्लोट की त्रुटि तुलना रूबी विफल रही

Question

मैं रेल के लिए नया हूं, और मुझे एक त्रुटि मिल रही है और मुझे लगता है कि समस्या यह नहीं है। यहाँ लॉग है:

[32651:ERROR] 2012-10-09 13:46:52 :: comparison of Float with Float failed 
[32651:ERROR] 2012-10-09 13:46:52 :: /home/sunny/backend/lib/analytics/lifetime.rb:45:in `each' 
/home/sunny/backend/lib/analytics/lifetime.rb:45:in `max' 
/home/sunny/backend/lib/analytics/lifetime.rb:45:in `max_growth' 
/home/sunny/backend/lib/analytics/lifetime.rb:15:in `run' 
/home/sunny/backend/lib/analytics/post_analytics.rb:102:in `lifetime' 
/home/sunny/backend/lib/analytics/post_analytics.rb:27:in `run`run' 
lib/endpoints/posts/index.rb:65:in `block in response' 
lib/endpoints/posts/index.rb:62:in `each' 
lib/endpoints/posts/index.rb:62:in `response' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/api.rb:163:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/rack/validation/required_param.rb:43:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/rack/params.rb:61:in `block in call' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/rack/validator.rb:40:in `safely' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/rack/params.rb:59:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/rack/async_middleware.rb:73:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/content_length.rb:14:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/async-rack-0.5.1/lib/async_rack/async_callback.rb:114:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/async-rack-0.5.1/lib/async_rack/async_callback.rb:91:in `block in new' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/request.rb:163:in `call' 
/usr/local/lib/ruby/gems/1.9.1/gems/goliath-1.0.0.beta.1/lib/goliath/request.rb:163:in `block in process' 

जब भी मैं फाइल करने के लिए जाने के लिए और है कि पंक्ति खोजें, वहाँ कोई each है, और मैं नहीं समझ सकता है, जहां समस्या है। क्या कोई मदद कर सकता है? एक फिक्स से अधिक, मैं समस्या को समझना चाहता हूं।

class Lifetime 
    attr_reader :values 

    GROWTH_CUT_OFF = 0.10 

    def initialize(engaged_users_values) 
    @values = engaged_users_values 
    end 

    def run 
    growths  = growth(values) 

    return [0] if growths.uniq.first == 0 || growths.empty? 

    max_growth = max_growth(growths) 
    dead_growth = least_growth(growths, max_growth) 

    time_diff = time_diff(values.last['end_time'], 
          values.first['end_time']) 
    return [time_diff] unless dead_growth 

    dead_loc  = growths.index(dead_growth) 
    dead_value = values[dead_loc] 
    lifetime(values.first, dead_value) 
    end 

    def time_diff(last, first) 
    in_minutes(parse_time(last)-parse_time(first)) 
    end 

    def parse_time(time) 
    DateTime.parse(time) 
    end 

    def growth(values) 
    values.each_cons(2).map do |one, two| 
     one_value = one['value'].to_f 
     two_value = two['value'] 

     ((two_value-one_value)/(one_value)*100).round(2) 
    end 
    end 

    def max_growth(growths) 
    growths.max 
    end 

    def least_growth(growths, max_growth) 
    growth_cut = growth_cut(max_growth) 
    growths.select {|g| g <= growth_cut}.first 
    end 

    def growth_cut(max_growth) 
    max_growth*GROWTH_CUT_OFF 
    end 

    def lifetime(first_value, last_value) 
    first = parse_time(first_value['end_time']) 
    last = parse_time(last_value['end_time']) 

    result = last-first 
    [in_minutes(result)] 
    end 

    def in_minutes(time) 
    time.to_f*24*60 
    end 
end 

Answer 1

यदि दोनों में से एक तैरता NaN है, तो आप यह संदेश प्राप्त:

यहाँ फ़ाइल है। तो, नाएन मामले को रोकें।

आप त्रुटि के सटीक कोड (max_growth विधि)