Request simulated output — Req • mrgsolve

Use this function to select, by name, either compartments or derived variables that have been captured (see CAPTURE) into the simulated output.

Usage

Req(x, ...)

req(x, ...)

# S3 method for mrgmod
req(x, ...)

Arguments

x: model object
...: unquoted names of compartments or tabled items

Details

There is also a Req argument to mrgsim that can be set to accomplish the same thing as a call to Req in the pipeline.

Note the difference between req and Req: the former only selects compartments to appear in output while the latter selects both compartments and captured items. Also, when there are items are explicitly listed in Req, all other compartments or captured items not listed there are ignored. But when compartments are selected with req all of the captured items are returned. Remember that req is strictly for compartments.

Examples

mod <- mrgsolve::house()

mod %>% Req(CP,RESP) %>% ev(amt=1000) %>%  mrgsim
#> Model:  housemodel 
#> Dim:    482 x 4 
#> Time:   0 to 120 
#> ID:     1 
#>     ID time  RESP    CP
#> 1:   1 0.00 50.00  0.00
#> 2:   1 0.00 50.00  0.00
#> 3:   1 0.25 42.29 12.87
#> 4:   1 0.50 32.69 22.25
#> 5:   1 0.75 25.29 29.04
#> 6:   1 1.00 20.05 33.91
#> 7:   1 1.25 16.45 37.37
#> 8:   1 1.50 14.01 39.78