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Hi Sorry this still doesn't work. This is what I did.

I wrote the (High[i]) with the Highest and 9 period

I wrote the (Low[i]) with the Lowest and 9 period.

and I created individual indicators out of them and put them on MetaTrader on the Nasdaq 100 daily chart.

The numbers I get for the Highest High for the last 9 days is 2320, which is correct. I get 1973 for the lowest low of the last 9 days, also correct.

Then I plug in the code you supplied (iCustom(NULL,0,"High 9",0,i)-iCustom(NULL,0,"Low 9",0,i))

I cut and paste this and triple-checked to see that it's correct. I created an indicator out of it, expecting to get 2320-1973= 347
However for some reason the indicator gives me 77, which is exactly what I got before I changed the code to what was suggested. This is 270 points off, and I've tried to figure out where in the code 270 could have come from but can't.

I am trying to build an indicator that gives me the following parameters-

(Open 8 bars ago - this bar's close) / Highest high in last 9 periods - Lowest Low in last 9 periods ) * 100

Thanks for the help.

The indicator for Open[i+9]-Close[i] is ok
The indicator (iCustom(NULL,0,"High 9",0,i)-iCustom(NULL,0,"Low 9",0,i)) is wrong unless you have 2 other indicators that you did not post called High 9 and Low 9. If you have them, then is ok
Finally, Open[i+9]-Close[i]/Open[i+9]-Close[i]/(iCustom(NULL,0,"High 9",0,i)-iCustom(NULL,0,"Low 9",0,i)) is wrong. You need to use () to maintain the order of operations. Go to this page http://book.mql4.com/basics/expressions and read the title Order of Operations.

Your original equation is (Open 8 bars ago - this bar's close) / Highest high in last 9 periods - Lowest Low in last 9 periods ) * 100 which is missing a (. The right one should be :

( (Open 8 bars ago - this bar's close) / (Highest high in last 9 periods - Lowest Low in last 9 periods ) ) * 100

So the equation in the indicator builder should be:
( (Open[i+9]-Close[i]) / ( iCustom(NULL,0,"High 9",0,i)-iCustom(NULL,0,"Low 9",0,i) ) ) * 100 - at this point I believe you have the High 9 and Low 9 indicators.

Hi I tried the formula that you supplied me with, but it still doesn't work. However I did figure out what the problem is, but I don't know how to solve it.

When I write the “High 9” formula (highest high for last 9 periods) I use High [i] with the advanced highest and period 9. However this ends up giving me a value 1 and a value 2. Value 1 is the high for that bar, Value 2 is the high for 9 periods.

I do the same thing for the “Low 9” formula. So when I subtract “High 9” from “Low 9” I am trying to get the Highest high of the last 9 periods -the lowest low of the last 9 periods (so the value 2's)

Instead what I am getting is the high for that bar -the low for that bar (the value 1's).

I have tried rewriting the formula like this “High” (so no i) with the advanced formula highest period 9, but when I create the indicator it just gives me a blank indicator space on MT4.

How do I fix it so that I get the value 2's instead of the Value 1's?

Please post your indicators file .moi file "High 9" and "Low 9"

here are the indicators,

Please pay attention when you generate the indicators. In the screen it shows this:
//***Read this first: Integration with Molanis Strategy Builder***
/*To integrate this indicator with Molanis Strategy Builder use the following modes:
Mode 1 = Lowest of (Low[i]) with period 9;
*/
For the other indicator:
//***Read this first: Integration with Molanis Strategy Builder***
/*To integrate this indicator with Molanis Strategy Builder use the following modes:
Mode 1 = Higest of (High[i]) with period 9;
*/

It tells you when using the indicator use Mode 1 to get the signal, you are using Mode 0 so you are not getting the right signals. If you want to understand more about mt4 indicators, signals, modes and shift, read this:
viewtopic.php?f=3&t=162

I don't have the strategy builder, only the indicator builder. Is there anyway that i can build this indicator and use it without strategy builder or will it only work with it?

The indicator builder will generate the indicator, you can use it in metatrader or import it in the strategy builder to create an expert advisor.
The indicator builder creates custom indicators, the strategy builder creates experta dvisors.