help summarize dialog: summarize
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Title
[R] summarize -- Summary statistics
Syntax
summarize [varlist] [if] [in] [weight] [, options]
options description
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Main
detail display additional statistics
meanonly suppress the display; calculate only the mean;
programmer's option
format use variable's display format
separator(#) draw separator line after every # variables; default is
separator(5)
display_options control spacing and base and empty cells
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varlist may contain factor variables; see fvvarlist.
varlist may contain time-series operators; see tsvarlist.
by is allowed; see [D] by.
aweights, fweights, and iweights are allowed. However, iweights may not
be used with the detail option; see weight.
Menu
Statistics > Summaries, tables, and tests > Summary and descriptive
statistics > Summary statistics
Description
summarize calculates and displays a variety of univariate summary
statistics. If no varlist is specified, summary statistics are
calculated for all the variables in the dataset.
Also see [R] ci for calculating the standard error and confidence
intervals of the mean.
Options
+------+
----+ Main +-------------------------------------------------------------
detail produces additional statistics including skewness, kurtosis, the
four smallest and four largest values, and various percentiles.
meanonly, which is allowed only when detail is not specified, suppresses
the display of results and calculation of the variance. Ado-file
writers will find this useful for fast calls.
format requests that the summary statistics be displayed using the
display formats associated with the variables rather than the default
g display format; see [D] format.
separator(#) specifies how often to insert separation lines into the
output. The default is separator(5), meaning that a line is drawn
after every five variables. separator(10) would draw a line after
every 10 variables. separator(0) suppresses the separation line.
display_options: vsquish, noemptycells, baselevels, allbaselevels; see
[R] estimation options.
Examples
. sysuse auto
. summarize
. summarize mpg weight
. summarize mpg weight if foreign
. summarize mpg weight if foreign, detail
. summarize i.rep78
Saved results
summarize saves the following in r():
Scalars
r(N) number of observations
r(mean) mean
r(skewness) skewness (detail only)
r(min) minimum
r(max) maximum
r(sum_w) sum of the weights
r(p1) 1st percentile (detail only)
r(p5) 5th percentile (detail only)
r(p10) 10th percentile (detail only)
r(p25) 25th percentile (detail only)
r(p50) 50th percentile (detail only)
r(p75) 75th percentile (detail only)
r(p90) 90th percentile (detail only)
r(p95) 95th percentile (detail only)
r(p99) 99th percentile (detail only)
r(Var) variance
r(kurtosis) kurtosis (detail only)
r(sum) sum of variable
r(sd) standard deviation
Also see
Manual: [R] summarize
Help: [R] ameans, [R] centile, [D] codebook, [D] describe, [D]
inspect, [R] mean, [ST] stsum, [SVY] svy estimation, [R] table,
[R] tabstat, [R] tabulate, summarize(), [XT] xtsum
