Command: ChnEventDetectionDifference

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Command: ChnEventDetectionDifference

Checks whether two successive single values differ by a certain amount.

Input Parameters

XW	Specifies the data channel containing the x-values. You do not need to specify this channel.
Y	Specifies the data channel containing the y-values.
ChnEventDeltaValue	Specifies the sum of the difference value on which DIAdem checks a channel. Floating-point number variable 0 <= ChnEventDeltaValue <= 1E300
ChnEventDeltaType	Specifies the difference type of the difference value on which DIAdem checks a channel. Enumeration variable Enumeration variable with the following selection terms Script Term Interface Term, Explanation "positive" Positive "negative" Negative "absolute" Absolute "positive-exact" Positive-exact "negative-exact" Negative-exact "absolute-exact" Absolute-exact Valid Settings "positive" The difference is positive and greater than or equal to the specified amount. "negative" The difference is negative and greater than or equal to the specified amount. "absolute" The amount of the difference is greater than or equal to the specified amount. "positive-exact" The difference is positive and equal to the specified amount. "negative-exact" The difference is negative and equal to the specified amount. "absolute-exact" The amount of the difference is equal to the specified amount.
[ChnEventBeginIndex]	Specifies at which line number DIAdem starts checking the values of the data channel. The default value is 0, which means that DIAdem starts checking the values from the first row. Longinteger variable 0 <= ChnEventBeginIndex <= 2147483647
[ChnEventEndIndex]	Specifies the line number up to which DIAdem checks the values of the data channel. The default value is 0, which means that DIAdem checks the values up to the last row. Longinteger variable 0 <= ChnEventEndIndex <= 2147483647
[ChnEventMaxResultCount]	Specifies the maximum number of result values. The default value is 0 and means that DIAdem uses all result values. Longinteger variable 0 <= ChnEventMaxResultCount <= 2147483647
[ChnEventCloseOnNoValue]	Specifies whether DIAdem uses a NoValue at the end of the value area searched for. The default value is FALSE, which means that DIAdem ignores NoValues. Boolean Access: Read/Write

Return Parameters

Examples

The following example searches the areas in which the values of the [1]/[3] channel differ from their preceding value by 100. The example returns an Event/EventStatus channel, which contains the value 1, when the difference condition is met. Otherwise the result channel contains the value 0.

ChnEventResultList= Null 
ChnEventResultList =  ChnEventDetectionDifference( , "[1]/[3]", 100, "absolute")
Call ChnEventCreateStatusChn("Event/EventStatus", ChnEventResultList, "[1]/[3]", 0, 1)

dd.ChnEventResultList= None 
dd.ChnEventResultList =  dd.ChnEventDetectionDifference("" , "[1]/[3]", 100, "absolute") 
dd.ChnEventCreateStatusChn("Event/EventStatus", dd.ChnEventResultList, "[1]/[3]", 0, 1) 

Dialog Box Call

Call SUDDlgShow("Main", ResourceDrv & "AnaChnEventDetection")

Event Search

Related Topics

Command: ChnEventCompareChnEQ | Command: ChnEventCompareChnGE | Command: ChnEventCompareChnGT | Command: ChnEventCompareChnLE | Command: ChnEventCompareChnLT | Command: ChnEventCompareChnNE | Command: ChnEventCopyValues | Command: ChnEventCount | Command: ChnEventCreateFilteredChn | Command: ChnEventCreateFilteredFalseChn | Command: ChnEventCreateFilteredTrueChn | Command: ChnEventCreateStatusChn | Command: ChnEventCreateXYChannels | Command: ChnEventDetectionEqualStr | Command: ChnEventDetectionInStr | Command: ChnEventDetectionSlope | Command: ChnEventDetectionWindow | Command: ChnEventDuration | Command: ChnEventFilter | Command: ChnEventFind | Command: ChnEventGate | Command: ChnEventInvalidValues | Command: ChnEventOperationAND | Command: ChnEventOperationEventIncluded | Command: ChnEventOperationNOT | Command: ChnEventOperationOR | Command: ChnEventPatternFind | Command: ChnEventResultAddPrePost | Command: ChnEventSampleCount | Command: ChnEventSort | Command: ChnEventStatArithMean | Command: ChnEventStatMax | Command: ChnEventStatMin | Command: ChnEventStatRange | Command: ChnEventStatStandardDeviation | Command: ChnEventStatSum | Command: ChnEventStatValueCount | Command: ChnFind | Command: ChnFindReverse | Result of the Event Search