SSPAN options ;

The SSPAN statement applies sliding spans analysis to determine the suitability of seasonal adjustment for an economic series.

The following options can appear in the SSPAN statement:

NDEC= n

specifies the number of decimal places shown on selected sliding span reports. This option has no effect on the precision of the variables values in the OUTSPAN output data set.

CUTOFF= value

gives the percentage value for determining an excessive difference within a span for the seasonal factors, the seasonally adjusted series, and month-to-month and year-to-year differences in the seasonally adjusted series. The default value is 3.0. The use of the CUTOFF=value in determining the maximum percent difference (MPD) is described in the section Computational Details for Sliding Spans Analysis. Caution should be used in changing the default CUTOFF=value. The empirical threshold ranges found by the U.S. Census Bureau no longer apply when value is changed.

TDCUTOFF= value

gives the percentage value for determining an excessive difference within a span for the trading-day factors. The default value is 2.0. The use of the TDCUTOFF=value in determining the maximum percent difference (MPD) is described in the section Computational Details for Sliding Spans Analysis. Caution should be used in changing the default TDCUTOFF=value. The empirical threshold ranges found by the U.S. Census Bureau no longer apply when the value is changed.

NOPRINT

suppresses all sliding span reports. See Computational Details for Sliding Spans Analysis for more details on sliding span reports.

PRINT

prints the summary sliding span reports S 0 through S 6.E.

PRINTALL

prints the summary sliding spans report S 0 through S 6.E, along with detail reports S 7.A through S 7.E.