eav_encode_right_censored | R Documentation |
Entity-attribute-value encodings for survival data.
eav_encode_right_censored(time, event, sas.encoding = FALSE, ...)
eav_decode_right_censored(
x,
attrname = character(),
def = list(),
suffix = attrname,
sas.encoding = FALSE,
...
)
time |
|
event |
0/1 vector encoded in the "R sense". "1" is an event, "0" is right censored. |
sas.encoding |
Is the 'event' vector "SAS encoded"? In the SAS world,
1 means censored, and 0 is event. This is |
x |
the time to event |
def |
the covariate definition for this variable |
suffix |
adds |
Encoding of survival data in R requires two columns, one to store
the time-to-event and another to indicate if there was an "event" at stored
time, or if it was censored. A FacileDataSet
stores these two pData
columns into one "value" column in its entity-attribute-value
sample_covariate
table.
The encode_right_censored
function takes the time-to-event and censoring
vectors and encodes them into a single signed time-to-event numeric value.
Positive values indicate an event, and negative value are censored.
The decode_right_censored
function re-instantiates the two-column R-native
storage of this data.
returns a numeric vector that combines time-to-event and censoring info (sign of the value).
two column data.frame
with tte(_SUFFIX)?
and event(_SUFFIX)?
columns.
eav_metadata_create()
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