A recent thread on summary statistics, got me thinking. (Note this may not
happen often.) A function that would do summaries as describe below (similar
to SAS PROC UNIVARIATE) might be a nice addition to the main R system. Is
there a process by which functions, from packages can eventually be
incorporated into R. The reason I ask, is having them in R would guarantee
they get adequate testing. This would be helpful, for GLP and GCP
validation.
Murray M Cooper, Ph.D.
Richland Statistics
9800 N 24th St
Richland, MI, USA 49083
Mail: richs...@earthlink.net
----- Original Message -----
From: "William Revelle" <li...@revelle.net>
To: "David Winsemius" <dwinsem...@comcast.net>; "phoebe kong"
<sityeek...@gmail.com>
Cc: <r-help@r-project.org>
Sent: Monday, February 09, 2009 9:06 PM
Subject: Re: [R] summary statistics
At 6:41 PM -0500 2/9/09, David Winsemius wrote:
describe() in Hmisc provides much of the rest of what you asked for:
describe(pref900$TCHDL)
pref900$TCHDL
n missing unique Mean .05 .10 .25 .50 .75
.90 .95
906190 4469 16051 4.123 2.320 2.557 3.061 3.841 4.886
6.054 6.867
lowest : 0.9342 1.0200 1.0522 1.1008 1.1061, highest: 19.8696 20.1667
20.7619 21.6364 21.7200
As does describe in the psych package
describe(sat.act)
describe(sat.act)
var n mean sd median trimmed mad min max range skew
kurtosis se
gender 1 700 1.65 0.48 2 1.68 0.00 1 2
1 -0.61 -1.62 0.02
education 2 700 3.16 1.43 3 3.31 1.48 0 5
5 -0.68 -0.07 0.05
age 3 700 25.59 9.50 22 23.86 5.93 13 65 52 1.64
2.42 0.36
ACT 4 700 28.55 4.82 29 28.84 4.45 3 36 33 -0.66
0.53 0.18
SATV 5 700 612.23 112.90 620 619.45 118.61 200 800 600 -0.64
0.33 4.27
SATQ 6 687 610.22 115.64 620 617.25 118.61 200 800
00 -0.59 -0.02 4.41
see also describe.by to break this down by some grouping variable.
Bill
On Feb 9, 2009, at 6:04 PM, phoebe kong wrote:
Hi all,
I'm wondering if there is a function that can return summary statistics:
N=total number of observation, # missing, mean, median, range, standard
deviation.
As I know, summary() returns some of info I've mentioned above.
Thanks,
SY
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org 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.
______________________________________________
R-help@r-project.org 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.
--
William Revelle http://personality-project.org/revelle.html
Professor http://personality-project.org/personality.html
Department of Psychology
http://www.wcas.northwestern.edu/psych/
Northwestern University http://www.northwestern.edu/
Use R for psychology
http://personality-project.org/r
______________________________________________
R-help@r-project.org 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.
______________________________________________
R-help@r-project.org 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.
