I have two datasets.
The first dataset looks like this:
The second dataset looks like this:
What is the fastest way for me to generate a dataset that has all the combinations of the observations, i.e.,
company_name1 zipcode company_name2 sales
aaa 12345 bcb 1000
aaa 12345 bbc 2000
bbb 23456 bcb 1000
bbb 23456 bbc 2000
Thank you very much!