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JSBPPFName:
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where The Johnson SB percent point function does not exist in simple closed form. It is computed numerically using a bisection method.
where <p> is a number, parameter, or variable containing values between 0 and 1; <y> is a variable or a parameter (depending on what <x> is) where the computed Johnson SB ppf values are stored; <alpha1> is a number, parameter, or variable that specifies the first shape parameter; <alpha2> is a number, parameter, or variable that specifies the second shape parameter; and where the <SUBSET/EXCEPT/FOR qualification> is optional.
LET A = JSBPPF(P1,1.5,3) LET Y = JSBPPF(P,2,6) PLOT JSBPPF(P,0.8,2) FOR P = 0.01 0.01 0.99
LET ALPHA1 = DATA 0.5 0.5 0.5 1 1 1 2 2 2 LET ALPHA2 = DATA 0.5 1 2 0.5 1 2 0.5 1 2 . MULTIPLOT 3 3 MULTIPLOT CORNER COORDINATES 0 0 100 95 LOOP FOR K = 1 1 9 LET A1 = ALPHA1(K) LET A2 = ALPHA2(K) X1LABEL ALPHA1 = ^A1, ALPHA2 = ^A2 PLOT JSBPPF(P,A1,A2) FOR P = 0.01 0.01 0.99 END OF LOOP END OF MULTIPLOT . MOVE 50 97 HEIGHT 3 JUSTIFICATION CENTER TEXT JOHNSON SB PERCENT POINT FUNCTIONS ![]()
Date created: 11/20/2001 |