
PLNPPFName:
where is a shape parameter, p is a shape (power) parameter, and is the percent point function of the standard normal distribution. The input value is a real number between 0 and 1 (since it corresponds to a probability). If p is 1, this distribution reduces to the lognormal distribution.
where <x> is a number, parameter, or variable in the range 0 to 1; <p> is a positive number, parameter, or variable that specifies the power parameter; <s> is an optional positive number, parameter, or variable that specifies the shape parameter; <y> is a variable or a parameter (depending on what <x> is) where the computed powerlognormal ppf value is stored; and where the <SUBSET/EXCEPT/FOR qualification> is optional. If the <s> parameter is omitted, it defaults to 1.
LET X2 = PLNPPF(X1,P,SD) LET X2 = PLNPPF(X1,0.5,3)
where loc and scale are the location and scales parameters, respectively.
LABEL CASE ASIS Y1LABEL X X1LABEL Probability TITLE CASE ASIS . MULTIPLOT 2 2 MULTIPLOT CORNER COORDINATES 0 0 100 95 . TITLE P = 0.5, SIGMA = 0.2, 0.4, 0.7, 1.0 PLOT PLNPPF(F,0.5,0.2) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,0.5,0.4) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,0.5,0.7) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,0.5,1.0) FOR F = 0.01 .01 0.99 TITLE P = 1.0, SIGMA = 0.2, 0.4, 0.7, 1.0 PLOT PLNPPF(F,1.0,0.2) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,1.0,0.4) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,1.0,0.7) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,1.0,1.0) FOR F = 0.01 .01 0.99 TITLE P = 5.0, SIGMA = 0.2, 0.4, 0.7, 1.0 PLOT PLNPPF(F,5.0,0.2) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,5.0,0.4) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,5.0,0.7) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,5.0,1.0) FOR F = 0.01 .01 0.99 TITLE P = 20, SIGMA = 0.2, 0.4, 0.7, 1.0 PLOT PLNPPF(F,20,0.2) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,20,0.4) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,20,0.7) FOR F = 0.01 .01 0.99 AND PLOT PLNPPF(F,20,1.0) FOR F = 0.01 .01 0.99 . END OF MULTIPLOT MOVE 50 97 JUSTIFICATION CENTER TEXT Power Lognormal PPF's
Date created: 11/13/2002 