eegdense {eegkit} | R Documentation |
Dense EEG Cap Coordinates
Description
Dense (hypothetical) three-dimensional electroencephalography (EEG) electrode coordinates, and corresponding projection onto two-dimensional plane. Dense cap spans the 84 scalp electrodes defined in eegcoord
.
Usage
data(eegdense)
Format
A data frame with 977 observations and the following 5 variables:
- x
-
x-coordinate of 3d cap (numeric).
- y
-
y-coordinate of 3d cap (numeric).
- z
-
z-coordinate of 3d cap (numeric).
- xproj
-
Projected x-coordinate of 2d cap (numeric).
- yproj
-
Projected y-coordinate of 2d cap (numeric).
Author(s)
Nathaniel E. Helwig <helwig@umn.edu>
Source
Created by Nathaniel E. Helwig (2014) using:
Murdoch, D., and Adler, D. (2025). rgl: 3D Visualization Using OpenGL. doi:10.32614/CRAN.package.rgl, R package version 1.3.18, http://CRAN.R-project.org/package=rgl
Oostenveld, R., and Praamstra, P. (2001). The Five percent electrode system for high-resolution EEG and ERP measurements. Clinical Neurophysiology, 112, 713-719. doi:10.1016/S1388-2457(00)00527-7
Schlager S (2017). Morpho and Rvcg - Shape Analysis in R. In Zheng G, Li S, Szekely G (eds.), Statistical Shape and Deformation Analysis, 217-256. Academic Press. ISBN 9780128104934.
Examples
########## EXAMPLE ##########
data(eegdense)
# plot3d(eegdense[,1],eegdense[,2],eegdense[,3],size=10,col="green")
plot(eegdense[,4],eegdense[,5],cex=1,col="green",pch=19)