View source: R/lognormal_class.R
s_lognormal | R Documentation |
Creates a SURVIVAL object with a Log Normal distribution.
s_lognormal(...)
... |
Parameters to define the distribution. See the Parameters for details |
a SURVIVAL object of the log-normal distribution family. See the
documentation of s_factory
for the methods available for SURVIVAL objects
To create an exponential survival object the following options are available:
scale
and shape
to specify the canonical parameters of the distribution, or
surv
, t
and shape
for the proportion surviving (no events) at time t and the shape parameter, or
fail
, t
and shape
for the proportion failing (events) at time t and the shape parameter or
intercept
and shape
for the parameters returned by survreg(.., dist = "lognormal")
models.
The scale parameter is the median value of the distribution, and the shape is the log standard deviation
The parameters should be spell correctly as partial matching is not available
s_lognormal(scale = 2,shape = 2)
s_lognormal(surv = 0.6, t= 12, shape = 0.5)
s_lognormal(fail = 0.4, t = 12, shape =0.5)
s_lognormal(intercept = 0.4, scale = 0.5)
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