IBM Water System SPSS COMPLEX SAMPLES 19 User Manual
Chapter
5
Complex Samples Frequencies
The Complex Samples Frequencies procedure produces frequency tables for selected variables
and displays univariate statistics. Optionally, you can request statistics by subgroups, defined by
one or more categorical variables.
and displays univariate statistics. Optionally, you can request statistics by subgroups, defined by
one or more categorical variables.
Example.
Using the Complex Samples Frequencies procedure, you can obtain univariate tabular
statistics for vitamin usage among U.S. citizens, based on the results of the National Health
Interview Survey (NHIS) and with an appropriate analysis plan for this public-use data.
Interview Survey (NHIS) and with an appropriate analysis plan for this public-use data.
Statistics.
The procedure produces estimates of cell population sizes and table percentages,
plus standard errors, confidence intervals, coefficients of variation, design effects, square roots
of design effects, cumulative values, and unweighted counts for each estimate. Additionally,
chi-square and likelihood-ratio statistics are computed for the test of equal cell proportions.
of design effects, cumulative values, and unweighted counts for each estimate. Additionally,
chi-square and likelihood-ratio statistics are computed for the test of equal cell proportions.
Data.
Variables for which frequency tables are produced should be categorical. Subpopulation
variables can be string or numeric but should be categorical.
Assumptions.
The cases in the data file represent a sample from a complex design that should
be analyzed according to the specifications in the file selected in the
.
Obtaining Complex Samples Frequencies
E
From the menus choose:
Analyze > Complex Samples > Frequencies...
E
Select a plan file. Optionally, select a custom joint probabilities file.
E
Click
Continue
.
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