Hi Rupa

The thread you point to has a number of posts so it's a little difficult to guess which particular post you're referring to. It might be helpful if you gave more details of your own problem rather than liken it to someone else's.

I'm assuming that your exploration calls the "P" variable (also known as "INDICATOR") and uses that as a reference value for your exploration. The error message you get suggests that have NOT marked a price or indicator plot on the open chart, or you have inadvertently unmarked the price plot or changed to a different chart before running the exploration. I suggest that you create a basic exploration with just a P variable and then develop the exploration from there.

The P variable is a useful tool but it only allows one parameter to be accessed, and on a price plot this defaults to CLOSE. It's not dfficult to create indicators that can be marked to supply other prices but there is a better way to do that. The Security() function was intrduced to MetaStock EOD with version 8.0 and this offers far greater flexibility. For example you're not restricted to just the active chart, you can call several prices or indicator values (using several Security() functions), and you can make calls from the underlying data of numerous charts.

The most common problem I've come across with the Security() function is incorrect pathnames. This error is reasonably easy to identify and fix when it occurs with the Explorer, but the EST simply fails to give any results without any sort of message as to why no trades are generated.

Roy