Cointegration or ADF test in amibroker

Is it possible to code co-integration or ADF test in amibroker afl. How?

Yes, of course it is possible! You can code it just by using AFL alone.
No Matlab, R, Python, … required.
Don’t listen to people saying otherwise.
With all due to respect but such guys do not have a clue then.

You ask “How?”. Simply by converting existing formulas to AFL.

Why am I so sure?

Because I have done myself months ago.

(Cointegration information and general formulas for translation to AFL can be found via G…gle or other search engines etc.)