Thanks!!
David Winsemius wrote:
On Sep 10, 2010, at 4:05 PM, Nick Matzke wrote:
Hi,
Is there an easy way to convert numbers into a form such that they all
have the same number of digits?
e.g.:
"1", "10", and "100"
...become...
"0001", "0010", "0100" etc.
> sprintf("%05.0f", 100)
[1] "00100"
> sprintf("%04.0f", 100)
[1] "0100"
I ask because I am producing a large number of files that need to sort
consistently by filename. Currently I get this kind of sorting:
filename1
filename10
filename11
filename12
filename13
filename14
filename15
filename16
filename17
filename18
filename19
filename2
filename20
filename21
...etc..
which is annoying. Ideally I'd have:
filename0001
filename0002
filename0003
filename0004
filename0005
filename0006
filename0007
filename0008
filename0009
filename0010
filename0011
...etc..
Basically I want to produce strings like "0010" without an elaborate
hack.
Thanks!
Nick
--
====================================================
Nicholas J. Matzke
Ph.D. Candidate, Graduate Student Researcher
Huelsenbeck Lab
Center for Theoretical Evolutionary Genomics
4151 VLSB (Valley Life Sciences Building)
Department of Integrative Biology
University of California, Berkeley
Graduate Student Instructor, IB200A
Principles of Phylogenetics: Systematics
http://ib.berkeley.edu/courses/ib200a/index.shtml
Lab websites:
http://ib.berkeley.edu/people/lab_detail.php?lab=54
http://fisher.berkeley.edu/cteg/hlab.html
Dept. personal page:
http://ib.berkeley.edu/people/students/person_detail.php?person=370
Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html
Lab phone: 510-643-6299
Dept. fax: 510-643-6264
Cell phone: 510-301-0179
Email: [email protected]
Mailing address:
Department of Integrative Biology
3060 VLSB #3140
Berkeley, CA 94720-3140
-----------------------------------------------------
"[W]hen people thought the earth was flat, they were wrong. When
people thought the earth was spherical, they were wrong. But if you
think that thinking the earth is spherical is just as wrong as
thinking the earth is flat, then your view is wronger than both of
them put together."
Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical
Inquirer, 14(1), 35-44. Fall 1989.
http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
______________________________________________
[email protected] mailing list
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.
David Winsemius, MD
West Hartford, CT
--
====================================================
Nicholas J. Matzke
Ph.D. Candidate, Graduate Student Researcher
Huelsenbeck Lab
Center for Theoretical Evolutionary Genomics
4151 VLSB (Valley Life Sciences Building)
Department of Integrative Biology
University of California, Berkeley
Graduate Student Instructor, IB200A
Principles of Phylogenetics: Systematics
http://ib.berkeley.edu/courses/ib200a/index.shtml
Lab websites:
http://ib.berkeley.edu/people/lab_detail.php?lab=54
http://fisher.berkeley.edu/cteg/hlab.html
Dept. personal page:
http://ib.berkeley.edu/people/students/person_detail.php?person=370
Lab personal page:
http://fisher.berkeley.edu/cteg/members/matzke.html
Lab phone: 510-643-6299
Dept. fax: 510-643-6264
Cell phone: 510-301-0179
Email: [email protected]
Mailing address:
Department of Integrative Biology
3060 VLSB #3140
Berkeley, CA 94720-3140
-----------------------------------------------------
"[W]hen people thought the earth was flat, they were wrong.
When people thought the earth was spherical, they were
wrong. But if you think that thinking the earth is spherical
is just as wrong as thinking the earth is flat, then your
view is wronger than both of them put together."
Isaac Asimov (1989). "The Relativity of Wrong." The
Skeptical Inquirer, 14(1), 35-44. Fall 1989.
http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
______________________________________________
[email protected] mailing list
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.
