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Colon cancer dataset
data("colon")
A data frame with 15564 observations on the following 18 variables.
sex
a factor with levels Male Female
Male
Female
age
a numeric vector
stage
a factor with levels Unknown Localised Regional Distant
Unknown
Localised
Regional
Distant
mmdx
yydx
surv_mm
surv_yy
status
a factor with levels Alive Dead: cancer Dead: other Lost to follow-up
Alive
Dead: cancer
Dead: other
Lost to follow-up
subsite
a factor with levels Coecum and ascending Transverse Descending and sigmoid Other and NOS
Coecum and ascending
Transverse
Descending and sigmoid
Other and NOS
year8594
a factor with levels Diagnosed 75-84 Diagnosed 85-94
Diagnosed 75-84
Diagnosed 85-94
agegrp
a factor with levels 0-44 45-59 60-74 75+
0-44
45-59
60-74
75+
dx
a Date
exit
id
ydx
a numeric vector for continuous year of diagnosis
yexit
a numeric vector for continuous year of exit
data(colon) ## maybe str(colon) ; plot(colon) ...
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