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Read SPSS

Synopsis​

This operator is used for reading SPSS files.

Description​

The Read SPSS operator can read the data files created by SPSS (Statistical Package for the Social Sciences), an application used for statistical analysis. SPSS files are saved in a proprietary binary format and contain a dataset as well as a dictionary that describes the dataset. These files save data by 'cases' (rows) and 'variables' (columns).

These files have a '.SAV' file extension. SAV files are often used for storing datasets extracted from databases and Microsoft Excel spreadsheets. SPSS datasets can be manipulated in a variety of ways, but they are most commonly used to perform statistical analysis tests such as regression analysis, analysis of variance, and factor analysis.

Input​

file​

This optional port expects a file object.

Output​

output​

Data from the SPSS file is delivered through this port mostly in form of an ExampleSet.

Parameters​

attribute naming mode​

This parameter determines which SPSS variable properties should be used for naming the attributes.

use value labels​

This parameter specifies if the SPSS value labels should be used as values.

recode user missings​

This parameter specifies if the SPSS user missings should be recoded to missing values.

sample ratio​

This parameter specifies the fraction of the data set which should be read. If it is set to 1, the complete data set is read. If it is set to -1 then the sample size parameter is used for determining the size of the data to read.

sample size​

This parameter specifies the exact number of samples which should be read. If it is set to -1, then the sample ratio parameter is used for determining the size of data to read. If both are set to -1 then the complete data set is read.

use local random seed​

This parameter indicates if a local random seed should be used for randomization. Using the same value of local random seed will produce the same randomization.

local random seed​

This parameter specifies the local random seed. This parameter is only available if the use local random seed parameter is set to true.