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Hi,
I am new to Metatrader but very experienced in programming. I have created some sample Expert Advisors and some slightly complicated Indicators in MT. What is not clear is how to structure a rather complicated EA. I want the EA to call some "signal" functions to check for different setup condition.
How should I code these functions?
1. As "inline" functions in the EA
2. As "separate" Indicators that return a value instead of write on the screen?
3. some other "separate" function to call like calling iMA
If I choose alternative 1 can the inline function in the EA run thru the last 200 bars using Close[i] and call iMA?
Is alternative 2 OK?. When coding an indicator all bars "available" are processed which of course is not needed for the EA.
Alternative 3 to me seems like the logical choice but I am not sure how to structure it so it will work in backtesting and what I need to pass to it and what the function has access to by default, like for instance Close[i]
As an example of what I need to establish in the "signal" function is what is the current trend and when did it start. I have coded it in an indicator so I know how to do the actual code.
Grateful for any advice.
Ingvar
You probably already know how to do this, so sorry if you do.
Moving average of current bar:
iMA(NULL,0,13,0,MODE_EMA,PRICE_CLOSE,0);
Moving average of 200 bars ago.
iMA(NULL,0,13,0,MODE_EMA,PRICE_CLOSE,200);
You can call the moving average from whatever bar you want form current to any bar in the past.
Yes I have seen that this is possible. That is not really my problem. One way to illustrate the problem is to try to use a library function as that is in manner that I am used to program. But in a library routine I dont seem to have access to things like Close[i]. Does that mean that I have to pass arrays for open, high, low and close fro the number of bars I need to the library routine? Seems a bit awkward since "everything" is available in a Indicator type of routine. So should I write 5 different indicator routines and call them from the EA routine? In that case can I just skip the screen writing in the Indicator routine and just return a value to the EA routine instead. Or do i have to return an array of values that match all the bars?
Yes I have seen that this is possible. That is not really my problem. One way to illustrate the problem is to try to use a library function as that is in manner that I am used to program. But in a library routine I dont seem to have access to things like Close[i]. Does that mean that I have to pass arrays for open, high, low and close fro the number of bars I need to the library routine? Seems a bit awkward since "everything" is available in a Indicator type of routine. So should I write 5 different indicator routines and call them from the EA routine? In that case can I just skip the screen writing in the Indicator routine and just return a value to the EA routine instead. Or do i have to return an array of values that match all the bars?
Struggling along
Ingvar
If you are just looking for the close of certain bars, and not the MA value of a certain bar, you could use the Close[] series array. I'm not sure if this will help you or not.
To call the close of current bar use Close[0]
To call the close of of 5 bars ago use Close[5]
Again, I'm not sure if this is helping you or not. You probably already know this. From reading your posts you seem to have more programming experience than me.
Yes, I know about the CLose[i]. The problem is that this array is not readily available in a library routine it seems. When programming I like to strukture all code in functional "pieces" and ideally one "piece" should not exceed one page in length.
What i want is..I plan to use 3 indicator...when 3 indicator signal buy and ea make a BUY post then after Target Point, i dont want ea make a buy post again and ea waiting until indicator give signal SELL.Like BUY,SELL,BUY,SELL,BUY,SELL and forever.I don care if in one day the indicator give signal for BUY or for SELL only.
Thanks to who can help me.
hi..
i want to add a code to my expert that let expert close sell or buy position when certaine pips reached"say 50 pips"... then look only for opposite position of first closed position " if first closed position was sell, look for buy to close"...third position closed will be opposite for 2nd closed position....
report of account will be :
sell
buy
sell
buy
sll
buy
use "comment(all you variables,v2,v3,v4...)" to preview all variables you have in the expert
and run a visual test ... and keep your eye in the upper left corner specially when long signal is expected
Two indicators: from two in 1 window to 2 in 2 windows with different values...
Imagine you put two seperate (custom) indicators in the same seperate chart window on a chart in your terminal. They seem to correspond, cross over or whatever: they do have approximately the same values if you look at the graph, but when you place those two custom indicators in two other seperate chart windows, they turn out to have different values.
This looks like a pretty common problem to me, but I haven't found the answer on making those two indicators range between the same set of numbers (more or less) without changing the shape of the indicator. Please help.
Imagine you put two seperate (custom) indicators in the same seperate chart window on a chart in your terminal. They seem to correspond, cross over or whatever: they do have approximately the same values if you look at the graph, but when you place those two custom indicators in two other seperate chart windows, they turn out to have different values.
This looks like a pretty common problem to me, but I haven't found the answer on making those two indicators range between the same set of numbers (more or less) without changing the shape of the indicator. Please help.
Can you past a picture as example?
I´m trying to understand your question.
You refer to something like drop rsi above macd?
I use MTF stochastic for trading.
When I manually backtest some ideas I have open more windows with various TF where I check actual status of indicators. My idea is to put vertical line on actual time in main TF windows and using global variables and joined "move" indicator on other TF windows for automatic scroll that I can see actual situation without manual scrolling every TF window.
But - I cannot find any function that allows me to scroll windows to defined position (shift). Have anybody an idea how to do it? thx in advn
Anybody here can help me?...
Linear Mode
