synth.tr                package:MASS                R Documentation

Synthetic Classification Problem

Description:

     The 'synth.tr' data frame has 250 rows and 3 columns. The
     'synth.te' data frame has 100 rows and 3 columns. It is intended
     that 'synth.tr' be used from training and 'synth.te' for testing.

Usage:

     data(synth.tr)
     data(synth.te)

Format:

     These data frames contains the following columns:

     'xs' x-coordinate

     'ys' y-coordinate

     'yc' class, coded as 0 or 1.

Source:

     Ripley, B.D. (1994) Neural networks and related methods for
     classification (with discussion). _Journal of the Royal
     Statistical Society series B_ *56*, 409-456.

     Ripley, B.D. (1996) _Pattern Recognition and Neural Networks._
     Cambridge: Cambridge University Press.

