pointstomsec: convert points in milliseconds
In erpR: Event-Related Potentials (ERP) Analysis, Graphics and Utility Functions

Description Usage Arguments Details Value Author(s) See Also Examples

An internal function of erpR to convert points in milliseconds.

1	pointstomsec(a, lengthsegment, startmsec, endmsec)

`a`	a number indicating the point to be converted in ms
`lengthsegment`	the length (in points) of the segment
`startmsec`	the time (in ms) of the start of the segment
`endmsec`	the time (in ms) of the end of the segment

This is mostly an internal function of erpR.

The function return a single value that is the conversion of a from points to msec.

Giorgio Arcara

msectopoints

	
# 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)