convert points in milliseconds
An internal function of erpR to convert points in milliseconds.
pointstomsec(a, lengthsegment, startmsec, endmsec)
a number indicating the point to be converted in ms
the length (in points) of the segment
the time (in ms) of the start of the segment
the time (in ms) of the end of the segment
This is mostly an internal function of
The function return a single value that is the conversion of
a from points to msec.
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# calculate the time in msec corresponding to the point 128 # in a segment of 500 points starting from -200 ms # and ending at 1500 (500 Hz). pointstomsec(128, 500, startmsec = - 500, endmsec = 1500)
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