morsecodes: Rothkopf Morse Code Data
Description
A standard data set for Multidimensional Scaling (MDS) obtained by
Rothkopf based on the confusion rates observed by exposing subjects to
pairs of morse codes.format
8 data sets used for analyzing the data in XGvis and XGobi. ll{
morsecodes.dist dissimilarity matrix
morsecodes.dat initial configuration
morsecodes.colors point colors
morsecodes.glyphs point glyphs
morsecodes.lines lines
morsecodes.linecolors line colors
morsecodes.row labels of the form "A .-"
morsecodes.col column names of the initial configuration
}
source
Contained in the data_xgvis subdirectory of the XGobi and XGvis
source bundle, available via
http://www.research.att.com/areas/stat/xgobi/index.html#download.References
A. Buja, D. F. Swayne, M. Littman, & N. Dean (1998).
XGvis: Interactive Data Visualization with Multidimensional
Scaling.
http://www.research.att.com/areas/stat/xgobi/xgvis98.ps.gz.