Make columns for time 0 and time T

Source: R/util.R

Make columns for time 0 and time T

create0Tcolumns(
  XvV,
  time_colname,
  X_colname = "X",
  v_colname = "v",
  V_colname = "V",
  zero_suffix = "_0",
  T_suffix = "_T"
)

Arguments

XvV

a data frame containing X, v, and V columns.
time_colname

the name of the time column (a string)
X_colname

the name of the X column (default is "X")
v_colname

the name of the v column (default is "v")
V_colname

the name of the V column (default is "V")
zero_suffix

suffix for "0" variables (default is "_0")
T_suffix

suffix for "T" variables (default is "_T")

Value

a data frame containing metadata (time_colname and grouping variables) and columns for X_0, v_0, V_0, X_T, v_T, and V_T.