SAS/STAT Software

CORRESP Procedure

The CORRESP procedure performs simple correspondence analysis and multiple correspondence analysis (MCA). You can use correspondence analysis to find a low-dimensional graphical representation of the rows and columns of a crosstabulation or contingency table. Each row and column is represented by a point in a plot determined from the cell frequencies. PROC CORRESP can also compute coordinates for supplementary rows and columns. The procedure enables you to do the following:

  • use two kinds of input: raw categorical responses on two or more classification variables or a two-way contingency table
  • specify the number of dimensions or axes
  • specify the standardization for the row and column coordinates
  • create a data set that contains coordinates and the results of the correspondence analysis
  • create a data set that contains frequencies and percentages
  • create a data set that corresponds to any output table
  • perform BY group processing, which enebales you to obtain separate analyses on grouped observations
  • automatically display the correspondence analysis plot by using ODS Graphics

For further details see the CORRESP Procedure