Hi, I need help plz
I'm trying to find a solution to the following problem :
- I have a data set with 144 patients: containing two groups :
- group 1 (70 patients) treated with a medical device and,
- group 2 (42 patients) treated without a medical device.
I would like to choose randomly from group 1: 42 patients that have the same characteristics as in group 2, in terms of: tumor size, sex, age, and tumor type.
Could you help me, please?