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WED 2/24/99 11:36:33 AM
SYSTAT VERSION 7.0.1
COPYRIGHT (C) 1997, SPSS INC.
Welcome to SYSTAT!
NOTE: the following commands can be used to plot the response surfaces for
problems 7.38 and 7.39 p. 323 in NKNW. Each response surface is plotted
3 times with different appearance options.
>fplot y = 14+7*x1+5*x2-4*x1*x2; stick xmin=0 xmax=5 ymin=0 ymax=5
>fplot y = 14+7*x1+5*x2-4*x1*x2; stick xmin=0 xmax=5 ymin=0 ymax=5 contour
>fplot y = 14+7*x1+5*x2-4*x1*x2; stick xmin=0 xmax=5 ymin=0 ymax=5 surface=xycut
>fplot y = 25+3*x1+4*x2+1.5*x1*x2; stick xmin=0 xmax=7 ymin=0 ymax=7
>fplot y = 25+3*x1+4*x2+1.5*x1*x2; stick xmin=0 xmax=7 ymin=0 ymax=7 contour
>fplot y = 25+3*x1+4*x2+1.5*x1*x2; stick xmin=0 xmax=7 ymin=0 ymax=7 surface=xycut
Last modified 24 February 1999