DIMENSION Subcommand (MULTIPLE CORRESPONDENCE command)

DIMENSION specifies the number of dimensions you want MULTIPLE CORRESPONDENCE to compute.

  • If you do not specify the DIMENSION subcommand, MULTIPLE CORRESPONDENCE computes a two dimensional solution.
  • DIMENSION is followed by an integer indicating the number of dimensions.
  • The maximum number of dimensions is the smaller of a) the number of observations minus 1 and b) the total number of valid variable levels (categories) minus the number of variables if there are no variables with missing values to be treated as passive. If there are variables with missing values to be treated as passive, the maximum number of dimensions is the smaller of a) the number of observations minus 1 and b) the total number of valid variable levels (categories) minus the larger of c) 1 and d) the number of variables without missing values to be treated as passive.
  • The maximum number of dimensions is the smaller of the number of observations minus 1 and the total number of valid variable levels (categories) minus the number of variables without missing values.
  • MULTIPLE CORRESPONDENCE adjusts the number of dimensions to the maximum if the specified value is too large.
  • The minimum number of dimensions is 1.