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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.

Usage

lctran(data, ...)

# S3 method for data.frame
lctran(data, warn = TRUE, ...)

# S3 method for ev
lctran(data, ...)

uctran(data, ...)

# S3 method for data.frame
uctran(data, warn = TRUE, ...)

# S3 method for ev
uctran(data, ...)

Arguments

data

a data set with nmtran-like format.

...

for potential future use.

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 or event object 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

ev <- evd(amt = 100, evid = 3)
uctran(ev)
#> Events Data:
#>   time amt cmt evid
#> 1    0 100   1    3

# 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