ms.locator: locate ms on a ERP plot

In erpR: Event-Related Potentials (ERP) Analysis, Graphics and Utility Functions

Description

This functions is meant to be used with a plot obtained with erp function. It reads the position of the graphics cursor when the (first) mouse button is pressed and returns the x-coordinates in ms.

Usage

ms.locator(type = "p", startmsec, endmsec, lengthsegment, label=TRUE, n=512, ...)

Arguments

type	the type of plot. this parameter is passed to locator
startmsec	the time (in ms) of the start of the segment.
endmsec	the time (in ms) of the end of the segment.
lengthsegment	the length (in points) of the segment.
label	logical. If TRUE the located ms are plotted on the figure.
...	further parameters to be passed to locator function.
n	The maximum number of points to locate.

Value

The time in ms associated with each located point is printed on the R prompt.

Author(s)

Giorgio Arcara

See Also

locator

Examples

## Not run: 
	
data(erplistExample)

word=grandaverage("Exp1_word_subj", 1:20, erplist=erplistExample) 

erp(word$F3, smo=0, col="blue", startmsec=-200, endmsec=1500, ylim=c(-6,6))


ms.locator(type="p", startmsec=-200, endmsec=1500, lengthsegment)


## End(Not run)

erpR documentation built on June 7, 2019, 3 a.m.