They are individual variables of a trade or asset, and not necessarily related to TMFs. For example, a TradeVar can be used to store the value of a certain indicator at the moment of entering a trade, for statistical purposes. And an AssetVar could be used for counting the number of trades that were entered with that asset.

But the usual case is using TradeVars in a TMF for storing values that need to be preserved between TMF calls. For instance, counting something or storing the maximum or minimum of something.

Thanks jcl. Could you do an example? So it is more clear!

Problem is that I have no real example: AFAIK in none of our scripts we've used a TradeVar or AssetVar. But the original script of the thread starter would need two AssetVars if it were a portfolio script. They would be defined this way:

#define LastWeekClose AssetVar[0]
#define CancelOtherTrades AssetVar[1]

and then can be set and reset in a TMF as well as in the main script.