Mr. H wrote:Hi Michal,

Thanks for your reply.

I am trying Amibroker Demo as well.

My Indicator measures the difference between GBP/JPY and its components

"GBP/USD * USD/JPY"

I hope we all agree on the following formula:

A/B * B/C * C/A = 1 or

A/B * B/C = A/C or

A/C - (A/B * B/C) = 0 and If A = GBP , B= USD and C=JPY then

GBP/JPY - (GBP/USD * USD/JPY) = 0

So if we compare the price of GBP/JPY to its components

(GBP/USD * USD/JPY) and see if the difference is >0 or <0

if (GBP/JPY - its components) > 0 then it is selling opportunity for GBP/JPY

and a buying opportunity for the components at same time.

The reverse is true if (GBP/JPY - its components) is >0

Let me know if the above makes sense as I am able to see the indicator

fluctuating above and under zero all the time.

Sure, that makes perfect sense. I just thought you wanted to display the FPI value. As you are not charting the FPI value, but rather the difference between the quote and its composite. Which is ok if you desire so.

Michal