Description Usage Arguments Value Author(s) References See Also Examples
The gen.trun()
function allows the user to generate the d
, the p
, the q
, the r
and the
gamlss
fitting functions of a truncated distribution given that the input family
is a current GAMLSS family distribution.
For continuous distributions left truncation at 3 means that the random variable can take the value 3. For discrete distributions left truncation at 3 means that the random variable can take values from 4 onwards. This is the same for right truncation. Truncation at 15 for a discrete variable means that 15 and greater values are not allowed but for continuous variable it mean values greater that 15 are not allowed (so 15 is a possible value).
1 |
par |
a vector with one (for |
family |
a |
name |
the characters you want to add to the name of new truncated distribution, by default adds |
type |
whether |
... |
for extra arguments |
Returns the d
, the p
, the q
and the r
functions of
a truncated distribution
Mikis Stasinopoulos d.stasinopoulos@londonmet.ac.uk and Bob Rigby r.rigby@londonmet.ac.uk
Rigby, R. A. and Stasinopoulos D. M. (2005). Generalized additive models for location, scale and shape,(with discussion), Appl. Statist., 54, part 3, pp 507-554.
Stasinopoulos D. M., Rigby R.A. and Akantziliotou C. (2003) Instructions on how to use the GAMLSS package in R. Accompanying documentation in the current GAMLSS help files, (see also http://www.gamlss.com/).
trun.d
, trun.p
, trun.q
, trun.r
1 2 3 4 5 6 | gen.trun(par=c(0,100),family="TF", name="0to100", type="both")
plot(function(x) dTF0to100(x, mu=80 ,sigma=20, nu=5), 0, 100)
plot(function(x) pTF0to100(x, mu=80 ,sigma=20, nu=5), 0, 100)
plot(function(x) qTF0to100(x, mu=80 ,sigma=20, nu=5), 0.01, .999)
hist(s1<-rTF0to100(1000, mu=80 ,sigma=20, nu=5))
m1<-gamlss(s1~1, family=TF0to100)
|
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