Metastock Explorer coding question

M

mokwit

Posted this on Metastock forum but just in case:

What I want do do is get a figure for the cumulative volume between a high that would have occurred up to 1250 periods ago and a low that would have occurred no more than 250 days ago.
This is what would work

((Sum(V,HHV(HIGH,1250))) - (Sum(V,LLV(LOW,250))))

were it not for the fact that this gives the error message "this variable or expression must contain only constant data"

This returns a value and would be OK

((Sum(V,1250)) - (Sum(V,250)))

but for the fact that I don't know where the high/low will be for each stock and do not want to input it manually as I want this for an exploration.

SO: is there a workaround for the fact that the Sum function will only handle a constant, or is there a completely dfferent way of returning the cumulative volume between a high that would have been no more than 1250 bars ago and a low that would have been no more than 20 periods ago in such a way that it can be used for an exploration?

Thanks in advance for any help
 
Quote from mokwit:

Posted this on Metastock forum but just in case:

What I want do do is get a figure for the cumulative volume between a high that would have occurred up to 1250 periods ago and a low that would have occurred no more than 250 days ago.
This is what would work

((Sum(V,HHV(HIGH,1250))) - (Sum(V,LLV(LOW,250))))

were it not for the fact that this gives the error message "this variable or expression must contain only constant data"

This returns a value and would be OK

((Sum(V,1250)) - (Sum(V,250)))

but for the fact that I don't know where the high/low will be for each stock and do not want to input it manually as I want this for an exploration.

SO: is there a workaround for the fact that the Sum function will only handle a constant, or is there a completely dfferent way of returning the cumulative volume between a high that would have been no more than 1250 bars ago and a low that would have been no more than 20 periods ago in such a way that it can be used for an exploration?

Thanks in advance for any help
More...
Maybe this works:

Sum(V, lastvalue(hhvbars(H,1250)+PREV-PREV)) - Sum(V, lastvalue(llvbars(L,250)+PREV-PREV))
 
Kut2K2, Thanks for reply, unfortunately it is returning results that in some cases look a bit off (e.g negative numbers).

It seems that there is a workaround available in the form of a dll that will allow variables in the function, avalable here:

http://forum.equis.com/viewtopic.php?t=1430

Thanks once again for your help. Very much appreciated.
 
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