ASSESS Procedure

FITSTAT Statement

FITSTAT PVAR=variables / PEVENT="event-list" <DLM="character">;

The FITSTAT statement reports the following error metrics for a nominal target: average square error, divisor of average square error, root average square error, mean consequential error, and multiclass log loss. (For an interval target, PROC ASSESS creates the following metrics by default, without your specifying the FITSTAT statement: average square error, divisor of average square error, root average square error, mean absolute error, root mean absolute error, mean square logarithmic error, and root mean square logarithmic error.)

You must specify the following options:

PVAR=variables: specifies the posterior probability for each level in model prediction except the variable that you specify in the INPUT statement. Duplicate variables are not allowed. If you specify the variable that is specified in the INPUT statement, it is ignored.
PEVENT="event-list": specifies the events that correspond to each variable in the PVAR= option. The "event-list" cannot include the event that corresponds to the variable in the TARGET statement. You must specify the PEVENT= and PVAR= options one after the other, in this order, and the same number of times. The maximum length of the "event-list" is 5,000 characters.

You can also specify the following option:

DELIMITER="character" DLM="character"

specifies the delimiter that is used to separate events that you specify in the PEVENT= option. You use a delimiter when event names contain embedded spaces (for example, "Fuel Oil") or special characters (for example, ";" or "*"). You must specify the quotation marks around the "character". You can specify only one delimiter; combinations of delimiters are not supported. The valid values of the DELIMITER= option are " " (space), ";" (semicolon), "*" (asterisk), "." (period), and "," (comma).

By default, DELIMITER=" " (space).

If you specify a delimiter other than " " (space), PROC ASSESS treats any spaces, including empty spaces, as valid characters. You are responsible for mapping events correctly in order to obtain correct results.

Last updated: September 22, 2026