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Discriminant space and contour ellipses

K.Vehkalahti (1997)
Discriminant space and contour ellipses

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   1 *SAVE IRIS / Discriminant analysis of famous iris data (Fisher 1936)
   2 *                              TEXTS=t0,t1,t2,t3  HEADER=[Times(19)],& 
   3 *  Fisher_(1936):_Iris_data;_discriminant_space_of_three_iris_species
   4 *                 XSCALE=-15(5)10   YSCALE=-11(2)-3    PEN=[Times(16)]
   5 *                 XDIV=2,15,1       YDIV=2,5,2         SIZE=1800,900
   6 *                 *GLOBAL*          YLABEL=D2________________________& 
   7 *   Contour_ellipses_drawn_on_95%_level by specification CONTOUR=0.95
   8 *                                         t0=[BLACK],Species:,200,50
   9 * *sp1=specname:Setosa      *p1=[RED],8,8 t1=[RED],Setosa,1400,50
  10 * *sp2=specname:Versicolor *p2=[BLUE],8,8 t2=[BLUE],Versicolor,750,50
  11 * *sp3=specname:Virginica *p3=[GREEN],8,8 t3=[GREEN],Virginica,500,50
  12 *
  13 *PLOT IRIS D1,D2   /  CASES=*sp1 POINT=*p1              DEVICE=PS,A.PS
  14 *PLOT IRIS D1,D2   /  CASES=*sp2 POINT=*p2              DEVICE=PS,B.PS
  15 *PLOT IRIS D1,D2   /  CASES=*sp3 POINT=*p3              DEVICE=PS,C.PS
  16 *...............   /
  17 *PLOT /FRAME       /  FRAMES=F F=200,200,1500,500,9     DEVICE=PS,F.PS
  18 *.....................................................................
  19 *                     EPS JOIN IRIS.PS F A B C 
  20 *
  21 *Fisher, R.A. (1936). The use of multiple measurements in
  22 *     taxonomic problems. Annals of eugenics, 7, 179-188.
  23 *Anderson, E. (1935). The irises of the Gaspe peninsula.
  24 *     Bulletin of the American Iris Society, 59, 2-5.
  25 *



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