IWECHAZ
Name:
Type:
Purpose:
Compute the standard form of the inverted Weibull cumulative
hazard function with tail length parameter
.
Description:
The standard form of the inverted Weibull cumulative hazard
function is:
Syntax:
LET <y2> = IWECHAZ(<y1>,GAMMA)
<SUBSET/EXCEPT/FOR qualification>
where <y1> is a variable, number, or parameter;
<y2> is a variable or a parameter (depending on
what <y1> is) where the computed inverted
Weibull cumulative hazard value is stored;
<GAMMA> is a positive number or parameter that
specifies the tail length parameter;
and where the <SUBSET/EXCEPT/FOR qualification> is optional.
Examples:
LET A = IWECHAZ(3,2)
LET A = IWECHAZ(A1,4)
LET X2 = IWECHAZ(X1,8)
Note:
Default:
Synonyms:
Related Commands:
IWECDF

= Compute the inverted Weibull cumulative distribution
function.

IWEHAZ

= Compute the inverted Weibull hazard function.

IWEPDF

= Compute the inverted Weibull probability density
function.

IWEPPF

= Compute the inverted Weibull percent point function.

WEIPDF

= Compute the Weibull probability density function.

GAMPDF

= Compute the gamma probability density function.

CHSPDF

= Compute the chisquare probability density function.

NORPDF

= Compute the normal probability density function.

LOGPDF

= Compute the lognormal probability density function.

PPCC PLOT

= Generate a PPCC plot.

PROB PLOT

= Generate a probability plot.

RAND NUMB

= Generate random numbers.

Reference:
"Continuous Univariate Distributions: Volume 1", 2nd. Ed.,
Johnson, Kotz, and Balakrishnan, 1994, John Wiley, pp. 693.
Applications:
Implementation Date:
Program:
MULTIPOT 2 2
MULTIPLOT CORNER COORDINATES 5 5 95 95
MULTIPLOT SCALE FACTOR 2
Y1LABEL Hazard
Y1LABEL DISPLACEMENT 12
X1LABEL X
TITLE IWECHAZ (GAMMA = 0.5)
PLOT IWECHAZ(X,0.5) FOR X = 0.01 0.01 5
TITLE IWECHAZ (GAMMA = 1)
PLOT IWECHAZ(X,1) FOR X = 0.01 0.01 5
TITLE IWECHAZ (GAMMA = 2)
PLOT IWECHAZ(X,2) FOR X = 0.01 0.01 5
TITLE IWECHAZ (GAMMA = 5)
PLOT IWECHAZ(X,5) FOR X = 0.01 0.01 5
END OF MULTIPLOT
Date created: 11/20/2001
Last updated: 4/4/2003
Please email comments on this WWW page to
alan.heckert@nist.gov.
