On 02/12/2014 12:28, Pierrick Bruneau wrote:
I'll try to be more specific:
- ?order points to a common man page for both order() and sort.list()
- sort.list() has a "method" argument, i.e. a sorting algorithm. As far as
I can read, I'll rather say the default is "shell"
Not quite: the page says
method: the method to be used: partial matches are allowed. The
default is ‘"shell"’ except for some special cases: see
‘Details’.
- order() seems not to support this argument. My questions were thus 1)
what is the algorithm it uses ("shell" or other), and 2) is there a way to
parametrize it.
You are expected to read the source code to answer questions like that.
As order() is much more general than sort.list(), it needs much more
general sorting code.
But the overall message is
- when order() is doing the same job as sort.list it uses the same
defaults (which means it sometimes uses radix sorting).
- otherwise it uses a method from the Shell sort family.
On Tue, Dec 2, 2014 at 1:17 PM, PIKAL Petr <petr.pi...@precheza.cz> wrote:
Hi
Can you be more specific? How do you want parametrize order?
There is no sort.list argument in order.
For sort list, the default method is "radix", AFAIK.
Cheers
Petr
-----Original Message-----
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of
Pierrick Bruneau
Sent: Tuesday, December 02, 2014 12:33 PM
To: r-h...@stat.math.ethz.ch
Subject: [R] Sorting method used by order()
Hi all,
In ?order, the sorting method used appears as the "method" argument to
sort.list(), but I cannot make out which is used by default when
calling order(), and how to parametrize it.
Does someone have a clue there?
Thanks by advance,
Pierrick
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-
guide.html
and provide commented, minimal, self-contained, reproducible code.
________________________________
Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou
určeny pouze jeho adresátům.
Jestliže jste obdržel(a) tento e-mail omylem, informujte laskavě
neprodleně jeho odesílatele. Obsah tohoto emailu i s přílohami a jeho kopie
vymažte ze svého systému.
Nejste-li zamýšleným adresátem tohoto emailu, nejste oprávněni tento email
jakkoliv užívat, rozšiřovat, kopírovat či zveřejňovat.
Odesílatel e-mailu neodpovídá za eventuální škodu způsobenou modifikacemi
či zpožděním přenosu e-mailu.
V případě, že je tento e-mail součástí obchodního jednání:
- vyhrazuje si odesílatel právo ukončit kdykoliv jednání o uzavření
smlouvy, a to z jakéhokoliv důvodu i bez uvedení důvodu.
- a obsahuje-li nabídku, je adresát oprávněn nabídku bezodkladně přijmout;
Odesílatel tohoto e-mailu (nabídky) vylučuje přijetí nabídky ze strany
příjemce s dodatkem či odchylkou.
- trvá odesílatel na tom, že příslušná smlouva je uzavřena teprve
výslovným dosažením shody na všech jejích náležitostech.
- odesílatel tohoto emailu informuje, že není oprávněn uzavírat za
společnost žádné smlouvy s výjimkou případů, kdy k tomu byl písemně zmocněn
nebo písemně pověřen a takové pověření nebo plná moc byly adresátovi tohoto
emailu případně osobě, kterou adresát zastupuje, předloženy nebo jejich
existence je adresátovi či osobě jím zastoupené známá.
This e-mail and any documents attached to it may be confidential and are
intended only for its intended recipients.
If you received this e-mail by mistake, please immediately inform its
sender. Delete the contents of this e-mail with all attachments and its
copies from your system.
If you are not the intended recipient of this e-mail, you are not
authorized to use, disseminate, copy or disclose this e-mail in any manner.
The sender of this e-mail shall not be liable for any possible damage
caused by modifications of the e-mail or by delay with transfer of the
email.
In case that this e-mail forms part of business dealings:
- the sender reserves the right to end negotiations about entering into a
contract in any time, for any reason, and without stating any reasoning.
- if the e-mail contains an offer, the recipient is entitled to
immediately accept such offer; The sender of this e-mail (offer) excludes
any acceptance of the offer on the part of the recipient containing any
amendment or variation.
- the sender insists on that the respective contract is concluded only
upon an express mutual agreement on all its aspects.
- the sender of this e-mail informs that he/she is not authorized to enter
into any contracts on behalf of the company except for cases in which
he/she is expressly authorized to do so in writing, and such authorization
or power of attorney is submitted to the recipient or the person
represented by the recipient, or the existence of such authorization is
known to the recipient of the person represented by the recipient.
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford
1 South Parks Road, Oxford OX1 3TG, UK
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
