Multichannel-systems NeuroExplorer Bedienungsanleitung PDF herunterladen (Seite 256)

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5.5.8.26. MarkerExtract Function

MarkerExtract Function

Creates a new event variable based on existing marker variable.

Syntax

variableReference MarkerExtract(doc, MarkerVariableName, ExtractString)

Parameters

Parameter Type Description

doc documentReference Reference to the document

MarkerVariableName string The name of the marker variable.

ExtractString string Extract string. See comments.

Returns

None

Comments

ExtractString contains a list of items separated by commas. Items AND or OR should be placed

between the conditions for the sample field. Conditions for each marker field should end with the item

EOF. The last item in ExtractString list should be END.

For example, assume that we have a marker variable Strobed with one field that contains integer

values. To extract all the timestamps with the field value 3 you may use the following command:

doc.NewEvent = MarkerExtract(doc, "Strobed", "=3,EOF,END")

To extract all the timestamps with the field values 3, 4 and 5 you may use the command:

doc.NewEvent = MarkerExtract(doc, "Strobed", ">2,AND,<6,EOF,END")

To use string comparisons in timestamp extraction, add $ sign at the beginning of the string. For

example, to extract timestamps with Ev_Marker field value WL, use:

doc.NewEvent1 = MarkerExtract(doc, "Ev_Marker", "=$WL,EOF,END")

Usage

NexScript

doc = GetActiveDocument()

doc.NewEvent = MarkerExtract(doc, "Strobed", "=3,EOF,END")

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