Data of a study among women with breast cancer

data(mammaca)

Format

A data frame with 1207 observations on the following 10 variables.

id

continuous

time

continuous, Time (months)

status

dichotomous: 1=yes, 0=no

er

Estrogen Receptor Status, 1=positive, 0=negative

age

continuous

histgrad

categorical

ln_yesno

lymph nodes, 0=no, 1=yes

pathsd

dichotomous: Pathological Tumor Size

pr

dichotomous: Progesterone Receptor Status, 0=negative, 1=positive

Examples

data(mammaca)
## maybe str(mammaca)