Compute the Anchor Change Score

Compute the Anchor Change Score

compute_anchor_delta(
  dat = NULL,
  subject.id = NULL,
  time.var = NULL,
  anchor = NULL
)

Arguments

dat

pass the dataframe
subject.id

variable of the subject ID in the dataframe numeric; default is USUBJID
time.var

variable of the Time in the dataframe - PLEASE CHECK THAT THIS IS CORRECTLY ORDERED, default is Time
anchor

numeric anchor variable, default is PGIS

Value

returns a dataframe with two additional variables, anchor score at baseline and anchor change score