update,DataOrdinal-method | R Documentation |
DataOrdinal
ObjectsA method that updates existing DataOrdinal
object with new data.
## S4 method for signature 'DataOrdinal'
update(
object,
x,
y,
ID = length(object@ID) + seq_along(y),
new_cohort = TRUE,
check = TRUE,
...
)
object |
( |
x |
( |
y |
( |
ID |
( |
new_cohort |
( |
check |
( |
... |
not used. |
The current implementation of this update
method allows for
updating the DataOrdinal
class object by adding a single dose level x
only.
However, there might be some use cases where the new cohort to be added
contains a placebo and active dose. Hence, such update would need to be
performed iteratively by calling the update
method twice. For example,
in the first call a user can add a placebo, and then in the second call,
an active dose. Since having a cohort with placebo only is not allowed,
the update
method would normally throw the error when attempting to add
a placebo in the first call. To allow for such updates, the check
parameter should be then set to FALSE
for that first call.
The new, updated DataOrdinal
object.
data <- DataOrdinal(
x = c(10, 20, 30, 40, 50, 50, 50, 60, 60, 60),
y = as.integer(c(0, 0, 0, 0, 0, 1, 0, 0, 1, 2)),
ID = 1L:10L,
cohort = as.integer(c(1:4, 5, 5, 5, 6, 6, 6)),
doseGrid = c(seq(from = 10, to = 100, by = 10)),
yCategories = c("No tox" = 0L, "Sub-tox AE" = 1L, "DLT" = 2L),
placebo = FALSE
)
update(data, x = 70, y = c(1L, 2L, 1L))
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