Help System (web edition)

Simplest form of a data matrix is following:

  11 *DATA ABC1
  12 *   X   Y   test1
  13 * 1.2   5   -4.56
  14 * 3.4  11    3.52
  15 * 2.0   9    2
  16 * 1.7   4    4.6
  17 *

The data set ABC1 consists of three variables (X,Y,test1) and 4
observations (on lines 13-16). The empty line 17 terminates the
data set. The line of labels (12) must be immediately after the
DATA line (11).
Missing values are indicated by a '-'.
  D = More information on data representation