fails on macos

[djsmentya]

i want to train network to sum two numbers but i have an error with this code

data = [] 
100.times { data << [rand.round(2), rand.round(2)]}
train = RubyFann::TrainData.new(:inputs=> data, :desired_outputs=> data.map{|e| e.inject(:+)})

error output:

https://gist.github.com/anonymous/c8ca1b846ed68269bdf2

[inspire22]

both input and outputs need to be normalized to between -1 and 1

[djsmentya]

@inspire22 thanks