# How can i get that kind of transpose? **URL:** \ **Category:** Ruby\ **Created:** [May 2, 2010, 3:59am UTC](https://www.ruby-forum.com/t/how-can-i-get-that-kind-of-transpose/187917 "2010-05-02T03:59:13Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 2, 2010, 3:59am UTC](https://www.ruby-forum.com/t/how-can-i-get-that-kind-of-transpose/187917/1 "2010-05-02T03:59:13Z")
there is text1 1,2,3,4 1,2,3 1,2 1,2,3,4,5 what i want to get is text2: 1，1，1，1 2，2，2，2 3，3， 3 4， 4 5 how to get it ? ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 2, 2010, 4:18am UTC](https://www.ruby-forum.com/t/how-can-i-get-that-kind-of-transpose/187917/2 "2010-05-02T04:18:27Z")
On Sat, May 1, 2010 at 8:59 PM, Pen T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > 5 > how to get it ? Try googling for ruby matrix rotate. [http://snippets.dzone.com/tag/rotate](http://snippets.dzone.com/tag/rotate) came up in a 2 second search. This is also a ruby quiz. [http://rubyquiz.strd6.com/quizzes/209-matrix-rotator](http://rubyquiz.strd6.com/quizzes/209-matrix-rotator) Andrew McElroy ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 2, 2010, 5:02am UTC](https://www.ruby-forum.com/t/how-can-i-get-that-kind-of-transpose/187917/3 "2010-05-02T05:02:56Z")
On Sun, May 2, 2010 at 9:59 AM, Pen T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > there is text1 > 1,2,3,4 > 1,2,3 > 1,2 > 1,2,3,4,5$ > what i want to get is text2: > 1，1，1，1 > 2，2，2，2 > 3，3，  3\>\> Matrix[[1,2,3,4], [1,2,3], [1,2]]. transpose > =\> Matrix[[1, 1, 1], [2, 2, 2], [3, 3, nil], [4, nil, nil]] > 4，  4 > 5 > how to get it ? search for it first, $ qri transpose ------------------------------------------------------ Multiple choices: ``` Array#transpose, Matrix#transpose ``` so eg, =\> Matrix[[1, 3, 5], [2, 4, 6]] > > Matrix[[1,2,3,4], [1,2,3], [1,2]]. transpose > > =\> Matrix[[1, 1, 1], [2, 2, 2], [3, 3, nil], [4, nil, nil]] kind regards -botp ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 2, 2010, 10:36am UTC](https://www.ruby-forum.com/t/how-can-i-get-that-kind-of-transpose/187917/4 "2010-05-02T10:36:38Z")
Pen T. wrote: > there is text1 > 1,2,3,4 > 1,2,3 > 1,2 > 1,2,3,4,5 > what i want to get is text2: > 1，1，1，1 > 2，2，2，2 > 3，3， 3 > 4， 4 > 5 Is this what you want? > > a = [[1,2,3,4,nil],[1,2,3,nil,nil],[1,2,nil,nil,nil],[1,2,3,4,5]] > > =\> [[1, 2, 3, 4, nil], [1, 2, 3, nil, nil], [1, 2, nil, nil, nil], [1, > > 2, 3, 4, 5]] > > > a.transpose > > =\> [[1, 1, 1, 1], [2, 2, 2, 2], [3, 3, nil, 3], [4, nil, nil, 4], [nil, > > nil, nil, 5]] ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 3, 2010, 6:15pm UTC](https://www.ruby-forum.com/t/how-can-i-get-that-kind-of-transpose/187917/5 "2010-05-03T18:15:42Z")
On Sat, May 1, 2010 at 8:59 PM, Pen T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > ## 5 how to get it ? > > Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/). You need to be more clear: First your names are “text1” and “text2” but your data is not quoted like text would be. It is split with commas like an array would be, but it is not bracketed like an array would be, and you named it text. Second, your desired data is unclear, the spacing is off so that it is unclear which row the 4 belongs on, and the 5 seems to be on the wrong side. If this is what you actually desire, you need to explain the rules that determine this output, if not, then you need to double check your input.