Difference (UserStatistics function)

Difference of specified Login statistic value (between two U

Difference is a member of the UserStatistics class.

This function returns the difference in Login (also called “Final”) statistic values between one UserStatistics object and another.

The Difference method cancels the request if it is applied to a statistic Request statistic.

Syntax

  %dif = %ustat:Difference(%ustatOld, statistic)

Syntax terms

%dif

A numeric variable to contain the difference between the values of the specified statistic contained in the method object and contained in the older UserStatistics object.

%ustat

A UserStatistics object variable.

%ustatOld

An older UserStatistics object variable for the same user login as %ustat.

statistic

This case-independent string contains the name of a Model 204 user Login statistic All other names return an UnknownStatistic exception.

Usage Notes

• The statistics UpdtTime(MS) and LongupdTime(MS) can also be specified without the parentheses: for example, UpdtTimeMs and LongUpdtimeMs, respectively.
• Request statistics are not valid for the Difference method since most don't really make sense for this operation. The Request statistics for which it does make sense (CPU, for example) have corresponding Login statistics that return the exact same difference.
• Some statistics (like PCPU) don't really make sense as a difference but the Difference method returns a difference anyway.
• The DifferenceToString function returns the value differences between two UserStatistics objects for the Login statistics. The DifferenceToXmlDoc function returns the differences to an XmlDoc object.

Examples

The following example returns the amount of CPU a request uses and how many DKRDs it did:

    b
    %statStart   is object userStatistics
    %statEnd     is object userStatistics
    %statStart = new
     ... processing
    %statEnd   = new
    printText CPU:   {%statEnd:difference(%statStart, 'CPU')}
    printText DKRDs: {%statEnd:difference(%statStart, 'DKRD')}
    end