Feature #2831: Matrix: each, all?, none?, each_with_index, ....

• Status: Closed
• Assignee: marcandre (Marc-Andre Lafortune)
• Target version: 1.9.2

[marcandre (Marc-Andre Lafortune)]

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There is Matrix#collect, but it would be useful to have Matrix#each and include Enumerable.

All methods that return anything else than an array are completely natural: Matrix#all?, Matrix#any?, Matrix#count, Matrix#none?, etc...

Others can be left alone or undefined (#sort, #drop, ...)

Matrix#each_with_index should go over all values, and yield value, row and column

Currently, some basic operations are quite a bit more difficult than they could be. An example: to check if a matrix is composed of Integer:

Currently, need to build an intermediate array

m = Matrix[...]
integral = m.row_vectors.all? do |row|
row.all? &:integer?
end

Could be

integral = m.all? &:integer?

I'll gladly provide precisions on each method and make a patch.
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[marcandre (Marc-Andre Lafortune)]

• Assignee changed from keiju (Keiju Ishitsuka) to marcandre (Marc-Andre Lafortune)

=begin

=end

[marcandre (Marc-Andre Lafortune)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

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This issue was solved with changeset r27158.
Marc-Andre, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

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