CinePlex v3 Manual - Plexon Inc

6 The user may set the columns for each row in the What to Export for Each
Marker Occurrence area. For more information on exporting marker data,
see “Export Markers” on page 239.
7 In the Output File area, in the File box, type or select the output file name.
Note: Under Format, if the user selects Text file or Excel, click the Append
if existing checkbox to append the marker data onto the end of a file
that already exists on disk. Otherwise, CinePlex Editor overwrites
the existing file.
8 Click Export! to create the file and close the dialog box. The Export
Complete dialog box appears.
Exporting as a PLX File
CinePlex Editor can export marker occurrences data along with spike and continuous
data read in from the original neural data file to a new PLX file.
Mapping Markers to Event IDs
When exporting to a PLX file, the marker occurrences in the project are represented
as external events (type 4 data) in the output PLX file. There are two kinds
of external events in the PLX file format:
1 Individual External Events – These events appear only by their Event ID, and
each occurrence includes a timestamp only. There can be many different Individual
External Events (with different Event IDs) present in a PLX file.
2 Strobed Events – These events appear only by a special Event ID, so only one
strobed event can be in a PLX file. Each occurrence of a strobed event stores
a timestamp plus a single 16-bit value, called the strobe code.
The user must define a mapping between markers and Event IDs before CinePlex
Editor can represent marker occurrences as external events.
Each marker for which the marker occurrences are to be exported to a PLX file
must have its own unique Event ID. The user may define or edit the Event IDs in
the Define New Marker or New Marker Occurrence dialog boxes (see “Define
New Marker” on page 245 and “Add New Marker Occurrence” on page 248), or
the user may change them in the Export To PLX dialog box (see “Export to
PLX” on page 242.
The fact that individual external events do not have any data values associated
with them means that only Time-Only, Frame, and Interval-type (Interval, Level
Interval, or Zone Interval) markers can be represented by using individual external
events. For Interval-type markers, specify two Event IDs, one to represent the
start time of the interval and one to represent the end time.
Furthermore, the fact that a PLX file can only contain one kind of strobed events
means that only a limited number of Scalar or Coordinates markers can simultaneously
appear in a single PLX file. For example, if the strobed events in a PLX
file are to represent all the occurrences of a certain Scalar marker, then there is no
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