merge

[patrick kao]

how to merge two transversal bases of different periods

[Dave Airey]

What is "two transversal bases of different periods"?

[Phil Bromiley]

To add to Dave's response, you'll increase your chances of a useful answer by following the FAQ on asking questions - provide Stata code in code delimiters, readable Stata output, and sample data using dataex. Remember, few if any of us are from your research area, so you can't just refer to things like transversal bases without explaining them.

Tell us exactly what these data look like, and what code you've tried to use with what results. An example of the data would help.