Change the case of nmtran-like data items

Source: R/data_set.R

Previous data set requirements included lower case names for data items like AMT and EVID. Lower case is no longer required. However, it is still a requirement that nmtran like data column names are either all lower case or all upper case.

lctran(data, warn = TRUE)

uctran(data, warn = TRUE)

Arguments

data

A data set with nmtran-like format.

warn

If TRUE, a warning will be issued when there are both upper and lower case versions of any nmtran-like column in the data frame.

Value

A data frame with possibly renamed columns. The input data set, with select columns made lower case.

Details

Columns that will be renamed with lower or upper case versions:

  • AMT / amt

  • II / ii

  • SS / ss

  • CMT / cmt

  • ADDL / addl

  • RATE / rate

  • EVID / evid

  • TIME / time

If both lower and upper case versions of the name are present in the data frame, no changes will be made.

Examples

data <- data.frame(TIME = 0, AMT = 5, II = 24, addl = 2, WT = 80)
lctran(data)
#>   time amt ii addl WT
#> 1    0   5 24    2 80

data <- data.frame(TIME = 0, AMT = 5, II = 24, addl = 2, wt = 80)
uctran(data)
#>   TIME AMT II ADDL wt
#> 1    0   5 24    2 80

# warning
data <- data.frame(TIME = 1, time = 2, CMT = 5)
lctran(data)
#> Warning: There are both upper and lower case versions of some nmtran names in the data set
#>   TIME time cmt
#> 1    1    2   5