| | How are your data structured? What do you mean by "rectangular" and "card image"?
The structure of a data file defines how records, or rows of
data, are related to fields, or columns of data. The most
common data structures found in the holdings are:
Rectangular or Logical Record
Card ...
| 2008-08-29 |
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| | How do I build SAS, SPSS, or Stata datasets (from ASCII data and setup files)?
Setup files (also known as control cards or data definition statements) contain the syntax or program code to read columnar ASCII data into a statistical package. For detailed instructions on how to use SAS, SPSS, ...
| 2009-06-18 |
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| | How do I interpret a record from an ASCII data file?
Most data files are distributed as columnar ASCII files that consist of rows and columns of alphanumeric characters. Since ASCII data files are simply text files, they can be opened in any word processing program ...
| 2009-06-18 |
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| | How do I use a SAS setup file to import ASCII data?
Setup files contain the syntax or program code to read raw data (ASCII) into a statistical package. The instructions below demonstrate how to use SAS setup files in a Windows environment.
These instructions ...
| 2009-06-18 |
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| | How do I use an SPSS setup file to import ASCII data?
Setup files contain the syntax or program code to read undelimited data (ASCII) into a statistical package. The instructions below demonstrate how to use SPSS setup files in a Windows environment.
These ...
| 2009-06-18 |
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| | I downloaded data from your site, but my statistics application issues an error message ...
Data files must be uncompressed before they can be used.
ICPSR "cart" files are zipped with WinZip. If the downloaded cart file is represented with a vice-grips folder icon, the computer has WinZip installed. In ...
| 2008-08-29 |
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| | I'm using SPSS on a Mac. I can't read ASCII data files using the SPSS setup file I ...
SPSS for Macintosh, Version 6.1.1 and earlier versions, do not recognize UNIX linefeed characters. Macintosh users must change these characters manually before reading the file into SPSS. We suggest using a text ...
| 2008-08-29 |
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| | What are setup files?
Many data collections that contain ASCII data files are accompanied by setup files that allow users to read the text files into statistical software packages. Since a visual interpretation of alphanumeric data ...
| 2009-06-18 |
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| | What is OSIRIS and what is an OSIRIS dictionary file?
Developed in the 1960s and 1970s at the Institute for Social Research
(The University of Michigan), OSIRIS was a software package created to
manage and analyze social science datasets. OSIRIS dictionaries were
...
| 2007-02-13 |
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| | What is a codebook?
A codebook provides information on the structure, contents,
and layout of a data file. Users are strongly encouraged to
look at the codebook of a study before downloading the data
files.
While codebooks vary ...
| 2008-08-29 |
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| | What is a data file?
A data file is not the analyzed findings of a study or statistics, but the raw collected data from which these statistics might be extrapolated. It usually consists of rows and columns of alphanumeric characters. ...
| 2008-08-29 |
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| | What kind of data formats does the archive distribute? Do you have SPSS Portable files? SAS ...
We distribute data in the following formats:
ASCII
SPSS Portable
SAS Transport
Stata System
ASCII
Most data files are distributed as undelimited, or columnar, ASCII files. An
ASCII data file ...
| 2009-03-16 |
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| | What kind of documentation do you provide, and in what formats?
For any study, there are several possible types of documentation files for data collections:
Codebook: Information on the structure, contents, and
layout of a data file. The codebook may also contain ...
| 2009-06-17 |
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| | When I attempt to uncompress the files I downloaded from your site, WinZip complains that ...
The total path length (not file name length) has to be less than 255 characters. Our file names can be lengthy. If the path to which you wish to extract your files is also lengthy, then WinZip will fail.
Extract ...
| 2009-06-18 |
