The RAREEVENTS Procedure(Experimental)

Output Data Sets

OUTLIMITS= Data Set

You can save probability limits and related information in an output data set by specifying the OUTLIMITS= option in a CHART statement. Table 16.5 lists the variables that an OUTLIMITS= data set contains.

Table 16.5: OUTLIMITS= Data Set Variables

Variable

Description

_ALPHALPL_

Probability associated with the lower probability limit

_ALPHAUPL_

Probability associated with the upper probability limit

_DIST_

Name of the distribution used to compute the probability limits

_INDEX_

Name of the optional index variable

_LPL_

Lower probability limit

_MEDIAN_

Median of the probability distribution

_P_

Probability of success in a single Bernoulli trial on which the geometric distribution is based

_SHIFT_

Minimum possible value for the geometric distribution

_SIGMA_

Scale parameter for the exponential distribution

_THETA_

Threshold parameter for the exponential distribution

_TYPE_

Specifies whether the probability limits are estimated or standard

_UPL_

Upper probability limit

_VAR_

Name of the process variable that contains measurements of times between events


When the probability limits are based on an exponential distribution, the OUTLIMITS= data set contains the variables _SIGMA_ and _THETA_. When the probability limits are based on a geometric distribution, the OUTLIMITS= data set contains the variables _P_ and _SHIFT_.

OUTTABLE= Data Set

You can save process measurements, probability limits, and related information in an output data set by specifying the OUTTABLE= option in a CHART statement. Table 16.6 lists the variables that an OUTTABLE= data set contains.

Table 16.6: OUTTABLE= Data Set Variables

Variable

Description

_ALPHALPL_

Probability associated with the lower probability limit

_ALPHAUPL_

Probability associated with the upper probability limit

_DIST_

Name of the distribution used to compute the probability limits

_EXLIM_

Flag that indicates that a probability limit was exceeded

index

Optional index variable

_LPL_

Lower probability limit

_MEDIAN_

Median of the probability distribution

process

Process variable containing measurements of times between events

_UPL_

Upper probability limit