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 6 687 610.22 115.64 620 617.25 118.61 200 800 600
-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
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