Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
EXTRACT_METADATA(1)	     General Commands Manual	     EXTRACT_METADATA(1)

NAME
     extract_metadata  -  read column metadata from SPSS and Stata binary files,
     and format it as JSON

SYNOPSIS
     extract_metadata input-file output-file

DESCRIPTION
     extract_metadata reads column metadata from existing binary data files,  so
     that  readstat can produce new, column-compatible binary files from CSV in-
     put files. Both programs use JSON as a metadata interchange format.

     The input-file should be a file with one of the following extensions:

     dta    Stata binary file, version 104 or newer

     sav    SPSS uncompressed binary file

     zsav   SPSS compressed binary file

     In all cases, output-file should end in .json.

EXAMPLE
     Suppose you have a Stata file with last year's survey  data,  and	want  to
     produce  a compatible Stata file containing this year's survey data. First,
     extract the metadata:

	    extract_metadata last-year.dta survey-metadata.json

     Now apply it to this year's data, which is stored in a CSV file:

	    readstat this-year.csv metadata.json this-year.dta

     The first line of the CSV file should contain column names which match  the
     column  names  in	last-year.dta.	If everything went well, your new binary
     data set is now stored in this-year.dta.

OPTIONS
     None.

AUTHOR
     Copyright (C) 2012-2019 Evan Miller, and others where indicated.

				01 February 2019	     EXTRACT_METADATA(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=extract_metadata&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

home | help