Generate a table of incremental cost-effectiveness ratios given output from
`cea_pw()`

.

```
icer_tbl(
x,
k = 50000,
cri = TRUE,
prob = 0.95,
digits_qalys = 2,
digits_costs = 0,
output = c("matrix", "data.table"),
rownames = NULL,
colnames = NULL,
drop = TRUE
)
```

- x
An object of class

`cea_pw`

returned by`cea_pw()`

.- k
Willingness to pay.

- cri
If

`TRUE`

, credible intervals are computed; otherwise they are not.- prob
A numeric scalar in the interval

`(0,1)`

giving the credible interval. Default is 0.95 for a 95 percent credible interval.- digits_qalys
Number of digits to use to report QALYs.

- digits_costs
Number of digits to use to report costs.

- output
Should output be a

`data.table`

or a list of matrices for each group.- rownames
Row names for matrices when

`output = "matrix"`

.- colnames
Column names for matrices when

`output = "matrix"`

.- drop
If

`TRUE`

, then the result is coerced to the lowest possible dimension. Relevant if`output = "matrix"`

and there is one group, in which case a single matrix will be returned if`drop = TRUE`

and a list of length 1 will be returned if`drop = FALSE`

.

If `output = "matrix"`

, then a list of matrices (or a matrix if
`drop = TRUE`

) reporting incremental cost-effectiveness ratios (ICERs)
by group. Specifically, each matrix contains five rows for: (i)
incremental quality-adjusted life-years (QALYs), (ii) incremental costs,
(iii) the incremental net monetary benefit (NMB), (iv) the ICER,
and (v) a conclusion stating whether each strategy is cost-effective relative
to a comparator. The number of columns is equal to the
number of strategies (including the comparator).

If `output = "data.table"`

, then the results are reported as a `data.table`

,
with one row for each strategy and group combination.