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Extract the Objective Function Value (OFV) from a NONMEM Listing File

Source: R/fetch_ofv.R
fetch_ofv.Rd

Extracts the OFV from a NONMEM .lst file, trying several output formats produced by different NONMEM versions and estimation methods:

Usage

fetch_ofv(lst, digits = NA)

Arguments

lst

An object of class "lst" from read_lst_file().

digits

Integer or NA. Rounding for the OFV. Default NA.

Value

A single numeric value (the OFV), or NA_real_ if not found.

Details

  1. #OBJV:***...*** <value> ***...*** — standard NONMEM 7.x banner line

  2. MINIMUM VALUE OF OBJECTIVE FUNCTION = <value> — same-line format

  3. OBJECTIVE FUNCTION VALUE WITHOUT CONSTANT: <value> — multi-line FOCE-I

  4. FINAL VALUE OF OBJECTIVE FUNCTION <value> — alternative wording

  5. OFV = <value> — pyDARWIN / workflow tool footer

When multiple #OBJV: lines are present (multiple estimation steps), the last occurrence is returned (final step result).

Returns NA_real_ with a warning() if no OFV can be found — never stops.

Examples

path <- system.file("testdata", "full_cov.lst", package = "lstparsR")
lst  <- read_lst_file(path)
fetch_ofv(lst)
#> [1] 8986.318