get_data: Extract the Model Data of the dynamite Model
Description
Returns the input data to the Stan model. Mostly useful for debugging.
Usage
get_data(x, ...)
# S3 method for dynamiteformula
get_data(x, data, time, group = NULL, ...)
# S3 method for dynamitefit
get_data(x, ...)
Value
A list containing the input data to Stan.
Arguments
x
[dynamiteformula or dynamitefit] The model formula or an
existing dynamitefit object. See dynamiteformula() and dynamite().
...
Ignored.
data
[data.frame, tibble::tibble, or data.table::data.table]
The data that contains the variables in the model in long format.
Supported column types are integer, logical, double, and
factor. Columns of type character will be converted to factors.
Unused factor levels will be dropped. The data can contain missing
values which will simply be ignored in the estimation in a case-wise
fashion (per time-point and per channel). Input data is converted to
channel specific matrix representations via stats::model.matrix.lm().
time
[character(1)] A column name of data that denotes the
time index of observations. If this variable is a factor, the integer
representation of its levels are used internally for defining the time
indexing.
group
[character(1)] A column name of data that denotes the
unique groups or NULL corresponding to a scenario without any groups.
If group is NULL, a new column .group is created with constant
value 1L is created indicating that all observations belong to the same
group. In case of name conflicts with data, see the group_var element
of the return object to get the column name of the new variable.
data.table::setDTthreads(1) # For CRANd <- data.frame(y = rnorm(10), x = 1:10, time = 1:10, id = 1)
str(get_data(obs(y ~ x, family = "gaussian"),
data = d, time = "time", group = "id"))