Module: Util

Defined in:
../lib/store.rb,
../lib/utils.rb,
../lib/report.rb,
../lib/config.rb,
../lib/work_pipes.rb,
../lib/individual.rb,
../lib/alps_individual.rb,
../lib/piped_individual.rb

Defined Under Namespace

Modules: AlpsIndividual Classes: ConfigYaml, Individual, PipedIndividual, Report, ReportStream, ReportText, Store, WorkPipes

Class Method Summary (collapse)

Class Method Details

+ (Object) diversity(arr) 



27
28
29
30
31
32
33
34
35
 
# File '../lib/utils.rb', line 27

def Util.diversity arr
  count = Hash.new 0
  if block_given?
    arr.each { |val| count[ yield(val) ] += 1 }
  else
    arr.each { |val| count[ val ] += 1 }
  end
  count.values.sort {|a,b| b <=> a}
end

+ (Object) percent(nominator, denominator) 



37
38
39
40
41
42
43
 
# File '../lib/utils.rb', line 37

def Util.percent( nominator, denominator )
  if denominator == 0
    'N/A%'
  else
    "#{(100.0*nominator/denominator).round}%"
  end
end

+ (Object) permutate(arr, rnd = Kernel) 



45
46
47
48
49
50
51
52
53
 
# File '../lib/utils.rb', line 45

def Util.permutate( arr, rnd=Kernel )
  src = arr.clone
  res = []
  until src.empty?
    i = rnd.rand src.size  
    res << src.delete_at( i )
  end
  res
end

+ (Object) statistics(arr) 



4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File '../lib/utils.rb', line 4

def Util.statistics arr
  max = nil
  min = nil
  sum = 0.0
  n = 0

  arr.each do |i|
    next if i.nil?
    if i.to_f.infinite?
      max = i
      next
    end
    value = block_given? ? yield(i) : i
    max = (max.nil? || value>max) ? value : max
    min = (min.nil? || value<min) ? value : min
    sum += value
    n += 1
  end

  return min, max, sum/n, n    if n>0  
  return nil, nil, nil, 0
end