Chapter 15: Statistics
list (low,high). ..
The CROSSTABS procedure displays crosstabulation tables requested by the user. It can
calculate several statistics for each cell in the crosstabulation tables. In addition, a number
of statistics can be calculated for each table itself.
The TABLES subcommand is used to specify the tables to be reported. Any number
of dimensions is permitted, and any number of variables per dimension is allowed. The
TABLES subcommand may be repeated as many times as needed. This is the only required
subcommand in general mode.
Occasionally, one may want to invoke a special mode called integer mode. Normally,
in general mode, pspp automatically determines what values occur in the data. In integer
mode, the user speciﬁes the range of values that the data assumes. To invoke this mode,
specify the VARIABLES subcommand, giving a range of data values in parentheses for each
variable to be used on the TABLES subcommand. Data values inside the range are truncated
to the nearest integer, then assigned to that value. If values occur outside this range, they
are discarded. When it is present, the VARIABLES subcommand must precede the TABLES
In general mode, numeric and string variables may be speciﬁed on TABLES. In integer
mode, only numeric variables are allowed.
The MISSING subcommand determines the handling of user-missing values. When set
to TABLE, the default, missing values are dropped on a table by table basis. When set
to INCLUDE, user-missing values are included in tables and statistics. When set to REPORT,
which is allowed only in integer mode, user-missing values are included in tables but marked
with an ‘M’ (for “missing”) and excluded from statistical calculations.
Currently the WRITE subcommand is ignored.
The FORMAT subcommand controls the characteristics of the crosstabulation tables to be
displayed. It has a number of possible settings:
TABLES, the default, causes crosstabulation tables to be output. NOTABLES suppresses
PIVOT, the default, causes each TABLES subcommand to be displayed in a pivot table
format. NOPIVOT causes the old-style crosstabulation format to be used.
AVALUE, the default, causes values to be sorted in ascending order. DVALUE asserts a
descending sort order.
INDEX and NOINDEX are currently ignored.
BOX and NOBOX is currently ignored.