Hi Forum
I have searched the forum for a possible answer to the following question but to no avail.
If I have a dataset with some rare events, often the case when dealing with mortgage defaults, say 2MLN observations and only 1K of rare event, how best can I take random samples of size 5K, ensuring the rare events weight about 25% in each sample?
Matthew
I have searched the forum for a possible answer to the following question but to no avail.
If I have a dataset with some rare events, often the case when dealing with mortgage defaults, say 2MLN observations and only 1K of rare event, how best can I take random samples of size 5K, ensuring the rare events weight about 25% in each sample?
Matthew