Method: Statsample::Multiset#sum_field

Defined in:
lib/statsample/multiset.rb

#sum_field(field) ⇒ Object 



68
69
70
71
72
73
74
75
 
# File 'lib/statsample/multiset.rb', line 68

def sum_field(field)
  @datasets.inject(0) {|a,da|
    stratum_name = da[0]
    vector       = da[1][field]
    val          = yield stratum_name,vector
    a + val
  }
end