otlog | R Documentation |
Estimating the (single) parameter of the 1-truncated logarithmic distribution.
otlog(lshape = "logitlink", gshape = ppoints(8), zero = NULL)
lshape , gshape , zero |
Same as
|
The 1-truncated logarithmic distribution is a logarithmic
distribution but with the probability of a one being zero. The
other probabilities are scaled to add to unity.
Some more details can be found at logff
.
Multiple responses are permitted.
An object of class "vglmff"
(see vglmff-class
).
The object is used by modelling functions
such as vglm
,
and vgam
.
T. W. Yee
Gaitdlog
,
Otlog
,
logff
,
oalog
,
oilog
,
simulate.vlm
.
## Not run:
odata <- data.frame(y1 = rotlog(1000, shape = logitlink(1/3, inv = TRUE)))
ofit <- vglm(y1 ~ 1, otlog, data = odata, trace = TRUE, crit = "c")
coef(ofit, matrix = TRUE)
Coef(ofit)
with(odata,
hist(y1, shape = TRUE, breaks = seq(0.5, max(y1) + 0.5, by = 1),
border = "blue"))
x <- seq(1, with(odata, max(y1)), by = 1)
with(odata, lines(x, dotlog(x, Coef(ofit)[1]), col = "orange",
type = "h", lwd = 2))
## End(Not run)
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