[#64703] Add `Hash#fetch_at` (issue #10017) — Wojtek Mach <wojtek@...>
Hey guys
1 message
2014/09/01
[#64711] [ruby-trunk - Bug #10193] [Closed] TestIO#test_readpartial_locktmp fails randomly — nobu@...
Issue #10193 has been updated by Nobuyoshi Nakada.
3 messages
2014/09/02
[#64744] [ruby-trunk - Bug #10202] [Open] TestBenchmark#test_realtime_output breaks on ARM — v.ondruch@...
Issue #10202 has been reported by Vit Ondruch.
3 messages
2014/09/03
[#64823] documenting constants — Xavier Noria <fxn@...>
I am writing a Rails guide about constant autoloading in Ruby on
5 messages
2014/09/07
[#64838] [ruby-trunk - Bug #10212] [Open] MRI is not for lambda calculus — ko1@...
Issue #10212 has been reported by Koichi Sasada.
6 messages
2014/09/08
[#64858] Re: [ruby-trunk - Bug #10212] [Open] MRI is not for lambda calculus
— Eric Wong <normalperson@...>
2014/09/08
rb_env_t may use a flexible array, helps a little even on my busy system:
[#64871] Re: [ruby-trunk - Bug #10212] [Open] MRI is not for lambda calculus
— SASADA Koichi <ko1@...>
2014/09/08
(2014/09/08 19:48), Eric Wong wrote:
[#64972] [ruby-trunk - Bug #10231] [Open] Process.detach(pid) defines new singleton classes every call — headius@...
Issue #10231 has been reported by Charles Nutter.
3 messages
2014/09/11
[#64980] [ruby-trunk - Bug #10212] MRI is not for lambda calculus — ko1@...
Issue #10212 has been updated by Koichi Sasada.
4 messages
2014/09/12
[#65142] [ruby-trunk - Feature #10267] [Open] Number of processors — akr@...
Issue #10267 has been reported by Akira Tanaka.
4 messages
2014/09/20
[#65144] Re: [ruby-trunk - Feature #10267] [Open] Number of processors
— Eric Wong <normalperson@...>
2014/09/20
akr@fsij.org wrote:
[#65210] [ruby-trunk - misc #10278] [Assigned] [RFC] st.c: use ccan linked list — nobu@...
Issue #10278 has been updated by Nobuyoshi Nakada.
3 messages
2014/09/22
[ruby-core:65071] [ruby-trunk - Feature #10077] [PATCH] Implement Matrix#row_merge and Matrix#column_merge
From:
mail@...
Date:
2014-09-16 23:21:53 UTC
List:
ruby-core #65071
Issue #10077 has been updated by gogo tanaka.
@David MacMahon
Thank you!
It make sense for me.
As you said,
> the name "row_merge" seems to have an ambiguity as to whether it will merge along the rows of the Matrix (creating more columns) or whether it will merge additional rows onto the Matrix
I agree with this, but `horzcat` or `vertcat ` are hard to understand for people who isn't familiar with Matlab.
So I propose `horz_merge` and `vert_merge`. Dose it make sense?
----------------------------------------
Feature #10077: [PATCH] Implement Matrix#row_merge and Matrix#column_merge
https://bugs.ruby-lang.org/issues/10077#change-48938
* Author: gogo tanaka
* Status: Assigned
* Priority: Normal
* Assignee: Marc-Andre Lafortune
* Category:
* Target version:
----------------------------------------
Merge matrices horizontally and vertically.
It is useful and important when we handle linear equations, statistics and so on.
```
Matrix[[1, 2], [3, 4]].row_merge(Matrix[[5], [6]])
=> 1 2 5
3 4 6
Matrix[[1, 2], [3, 4]].column_merge(Matrix[[5, 6]])
=> 1 2
3 4
5 6
# accept more than two matrices as an argument.
Matrix[[1, 2], [3, 4]].column_merge(Matrix[[5, 6]], Matrix[[7, 8]])
=> 1 2
3 4
5 6
7 8
```
* Matrix#row_merge needs Matrix#column
---Files--------------------------------
Implement_Matrix#column_merge.patch (863 Bytes)
Add_test_for_Matrix#column_merge.patch (1.36 KB)
Add_Matrix#column_merge_to_NEWS.patch (452 Bytes)
Implement_Matrix#row_merge.patch (899 Bytes)
Add_test_for_Matrix#row_merge.patch (1.4 KB)
Add_Matrix#row_merge_to_NEWS.patch (523 Bytes)
--
https://bugs.ruby-lang.org/