Class: Array
- Inherits:
-
Object
- Object
- Array
- Defined in:
- lib/core_ext/array/in_groups.rb
Direct Known Subclasses
Mspire::Ident::ProteinGroup, Mspire::Mzml::DataArray, Mspire::Mzml::Index, Mspire::Mzml::IndexList, Mspire::Mzml::ScanList, Mspire::Peak, Mspire::Peaklist, Mspire::Spectrum::Centroid, Mspire::TaggedPeak
Instance Method Summary collapse
-
#in_groups(number, fill_with = nil) ⇒ Object
copied from ActiveSupport CoreExtensions.
Instance Method Details
#in_groups(number, fill_with = nil) ⇒ Object
copied from ActiveSupport CoreExtensions
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# File 'lib/core_ext/array/in_groups.rb', line 4 def in_groups(number, fill_with = nil) # size / number gives minor group size; # size % number gives how many objects need extra accomodation; # each group hold either division or division + 1 items. division = size / number modulo = size % number # create a new array avoiding dup groups = [] start = 0 number.times do |index| length = division + (modulo > 0 && modulo > index ? 1 : 0) padding = fill_with != false && modulo > 0 && length == division ? 1 : 0 groups << slice(start, length).concat([fill_with] * padding) start += length end if block_given? groups.each{|g| yield(g) } else groups end end |