status_at | R Documentation |
Return patients status at given time. Implemented for right-censored dataset.
status_at( start_date = NULL, prog_date = NULL, death_date = NULL, status_time = NULL )
start_date |
time variable |
prog_date |
status variable |
death_date |
death variable |
status_time |
censoring time |
a factor vector
db <- data.frame(start_date = as.Date(c("1900-01-01", "1900-01-01", "1900-01-01", "1900-01-01", NA)), prog_date = as.Date(c("1900-03-01", "1900-03-01", NA, NA, NA)), death_date = as.Date(c("1900-06-01", NA, "1900-06-01", NA, NA))) with(db, status_at(start_date, prog_date, death_date, status_time = 10)) with(db, status_at(start_date, prog_date, death_date, status_time = 100)) with(db, status_at(start_date, prog_date, death_date, status_time = 200))
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