help inspect dialog: inspect
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Title
[D] inspect -- Display simple summary of data's attributes
Syntax
inspect [varlist] [if] [in]
by is allowed; see [D] by.
Menu
Data > Describe data > Inspect variables
Description
The inspect command provides a quick summary of a numeric variable that
differs from the summary provided by summarize or tabulate. It reports
the number of negative, zero, and positive values; the number of integers
and nonintegers; the number of unique values; and the number of missing;
and it produces a small histogram. Its purpose is not analytical but is
to allow you to quickly gain familiarity with unknown data.
Examples
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Setup
. sysuse auto
Display simple summary of mpg
. inspect mpg
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Setup
. sysuse census
Display simple summary of region, a variable with a value label
. inspect region
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Setup
. sysuse citytemp
Display simple summary of tempjan, a variable with missing values
. inspect tempjan
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Saved results
inspect saves the following in r():
Scalars
r(N) number of observations
r(N_neg) number of negative observations
r(N_0) number of observations equal to 0
r(N_pos) number of positive observations
r(N_negint) number of negative integer observations
r(N_posint) number of positive integer observations
r(N_unique) number of unique values or . if more than 99
r(N_undoc) number of undocumented values or . if not labeled
Also see
Manual: [D] inspect
Help: [D] codebook, [D] compare, [D] describe, [D] isid, [R] lv, [R]
summarize, [R] table, [R] tabulate oneway, [R] tabulate twoway,
[R] tabulate, summarize()
