Stata 15 help for codebook

[D] codebook -- Describe data contents

Syntax

codebook [varlist] [if] [in] [, options]

options Description ------------------------------------------------------------------------- Options all print complete report without missing values header print dataset name and last saved date notes print any notes attached to variables mv report pattern of missing values tabulate(#) set tables/summary statistics threshold; default is tabulate(9) problems report potential problems in dataset detail display detailed report on the variables; only with problems compact display compact report on the variables dots display a dot for each variable processed; only with compact

Languages languages[(namelist)] use with multilingual datasets; see [D] label language for details -------------------------------------------------------------------------

Menu

Data > Describe data > Describe data contents (codebook)

Description

codebook examines the variable names, labels, and data to produce a codebook describing the dataset.

Options

+---------+ ----+ Options +----------------------------------------------------------

all is equivalent to specifying the header and notes options. It provides a complete report, which excludes only performing mv.

header adds to the top of the output a header that lists the dataset name, the date that the dataset was last saved, etc.

notes lists any notes attached to the variables; see [D] notes.

mv specifies that codebook search the data to determine the pattern of missing values. This is a CPU-intensive task.

tabulate(#) specifies the number of unique values of the variables to use to determine whether a variable is categorical or continuous. Missing values are not included in this count. The default is 9; when there are more than nine unique values, the variable is classified as continuous. Extended missing values will be included in the tabulation.

problems specifies that a summary report is produced describing potential problems that have been diagnosed:

- Variables that are labeled with an undefined value label - Incompletely value-labeled variables - Variables that are constant, including always missing - Leading, trailing, and embedded spaces in string variables - Embedded binary 0 (\0) in string variables - Noninteger-valued date variables

See codebook problems for a discussion of these problems and advice on overcoming them.

detail may be specified only with the problems option. It specifies that the detailed report on the variables not be suppressed.

compact specifies that a compact report on the variables be displayed. compact may not be specified with any options other than dots.

dots specifies that a dot be displayed for every variable processed. dots may be specified only with compact.

+-----------+ ----+ Languages +--------------------------------------------------------

languages[(namelist)] is for use with multilingual datasets; see [D] label language. It indicates that the codebook pertains to the languages in namelist or to all defined languages if no such list is specified as an argument to languages(). The output of codebook lists the data label and variable labels in these languages and which value labels are attached to variables in these languages.

Problems are diagnosed in all of these languages, as well. The problem report does not provide details in which language problems occur. We advise you to rerun codebook for problematic variables; specify detail to produce the problem report again.

If you have a multilingual dataset but do not specify languages(), all output, including the problem report, is shown in the "active" language.

Examples

With standard (monolingual) datasets,

----------------------------------------------------------------------- Setup . sysuse auto . note rep78: "investigate missing values" . label values rep78 repairlbl

Display codebook for all variables in dataset . codebook

Same as above command . codebook _all

Same as above command, but print dataset name, date last saved, dataset label, number of variables and of observations, and dataset size . codebook, header

Display codebook for rep78 variable . codebook rep78

Display codebook for rep78 variable, including notes attached to rep78 . codebook rep78, notes

Report potential problems with dataset . codebook, problems

Display compact report for all variables in dataset . codebook, compact

----------------------------------------------------------------------- Setup . webuse citytemp

Display codebook for cooldd, heatdd, tempjan, and tempjuly, and report pattern of missing values . codebook cooldd heatdd tempjan tempjuly, mv -----------------------------------------------------------------------

With multilingual datasets, with languages en and es, and with active language en,

Setup . webuse autom

Display codebook for foreign in language en . codebook foreign

Display codebook for foreign in language es . codebook foreign, language(es)

Display codebook for foreign in both en and es . codebook foreign, languages

Stored results

codebook stores the following lists of variables with potential problems in r():

Macros r(cons) constant (or missing) r(labelnotfound) undefined value labeled r(notlabeled) value labeled but with unlabeled categories r(str_type) compressible r(str_leading) leading blanks r(str_trailing) trailing blanks r(str_embedded) embedded blanks r(str_embedded0) embedded binary 0 (\0) r(realdate) noninteger dates


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