perClass Documentation
version 5.0 (21-sep-2016)
 SDDRAWROC  Draw interactive ROC plot

    FH=SDDRAWROC(R,COLSTR)

 INPUT
    R       SDROC object
    COLSTR  cell array with color, line and marker strings (see PLOT)

 OUTPUT
    FH      figure handle

 FIGURE INTERACTION
  Cursor keys  Change performance measures along the axes
  'c'          Show confusion matrix (if stored in ROC object with
                 'confmat' option)
  'n'          Show normalized conf.matrix (if stored in ROC object with
                 'confmat' option)
  'd'          Show conf.mat.differences to select op.point
  's'          Save current op.point to a pipeline or algorithm
  'f'          Fold info: Toggle between error bars and per-fold
                 realizations (only for multi-fold ROC, see SDCROSSVAL)

 DESCRIPTION
 SDDRAWROC plots an interactive 2D ROC plot. Moving the mouse, different
 operating points may be investiagted.  Different measure combination may
 be selected using the cursor keys.  Clicking on any operatin point makes
 it current (red cross).  Using 's' key, operating point may be saved back
 in Matlab workspace into existing ROC object, pipeline or SDALG
 algorithm.

 READ MORE
http://perclass.com/doc/guide/ROC_analysis.html#intro

sddrawroc is referenced in examples: