Description Usage Format Details
rats
contains measurement data of time survival of a sample of rats
to which was administered three types of poison and four types of treatment. Each
combination poison-treatment is administered to four rats.
1 |
rats
is a tbl data frame with 48 observations on 3 variables.
The 3 variables of the rats
tbl data frame are the following ones:
Time
survival time (hours) (numeric)
Poison
poison type (factor with levels: I
, II
and III
)
Treatment
type of treatment (factor with levels: A
, B
, C
and D
)
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