Hi there,

1.
I see that Get Historical Candles retrieves the last Candle Amount of candles
while Loop Viewer scrolls through them in chronological order.

Is there a way I can set Loop Viewer to scroll through my array of Candles in reverse order?
A workaround could be found, but very, very inefficient.

2.
If I found what I am looking for in the array, it does not make sense to continue looping.
How can I exit the Loop cycle when my condition is met?

I see point 2 should be possible because it is mentioned in the specs:
"
A loop is a sequence of instruction(s) that is continually repeated until a certain condition is reached
"

Cheers,
mosu_d

Hi,


The upper statement is correct, but can you please elaborate on the need of going through an array of data in a reversed order ??



Well, theoretically speaking, as long as there is new candles upcoming, the loop viewer continues to retrieve the data. The second exit allow the user to stop the iteration (Cycle end) till the next event (new candle) if you need to do a single loop in the entire strategy then you can insert a logical trigger that stops the loop viewer iteration for example.

Hi,

1. Going through an array in revers order:



Looping through candles in chronological order: example 1 shows a good scalping position, so I should record it or place an order.
But, going through the rest of the loop I get to example 2
meaning that the window of opportunity has already closed.

If I loop backwards (through example 2) it is obvious there is no scalping position.


2. I did not understand how I can make a logical trigger to stop the looping if a logical condition is met (except for stop strategy ).
Can you show me an example?

Cheers,
mosu_d

Hi,

Here is an example with some notes so that you can get the main idea.

Just to add a comment to your point 1:



You don't necessarily need to record the whole sequence but instead you can create a variable "A" that gets the value 1 for example once your figure is detected (in your example the sequence of X number of red candles) and then you can keep going if another figure is detected and assign the value 2 to A etc ... Once your target is met, lets say 50 figures the variable A will be updated accordingly. You can also reset its value of the condition is broken ... several workarounds can be considered here..

Hope this helps...

Thank you for the fast replies !

For me the comment for the Loop is contradicting its definition:



I can't see how to set a "Loop ... While" expression. Don't get me wrong, I have 2 digit experience with coding, I think I got the main ideas .

Cheers,
mosu_d

Hi,

Well the definition itself needs some improvement but the main idea is that out of the second exit the loop viewer block has performed the asked sequence but this doesn't necessarily means that it will definitely stop. The loop viewer function when used alone is only doing a cyclic "look" but if you need to add a "while" function you need to add an IF block specifying this.

Sorry, but I don't find this reply useful.

Please provide an example or photo of an example on
how to stop a loop when a condition is met.

Cheers,
mosu_d

No worries,

In my previous example "LoopProcessing" you can see that if the var "Highest" is greater than the high price of the candle (shift 6) then the loop is simply stopped with the help of "GO variable. In other words, we're doing a loop as long as "Highest" > Candle19:Candle high ... else, No loop.

Hope this helps.

Hi Amine,

I think there is a confusion in your example between

- The Loop block
- Strategy Loop that executes at each candle.


In your example, the Go variable just stops the Loop block from executing (altogether) after it has been executed once and the Order is placed (and open).

But it does not stop the Loop Block from stopping at ...
for example 3rd loop out of 5 possible loops

because the Go variable is assigned value true outside the Loop block cycle.

Cheers,
Dan.

Hi,

Actually there is no confusion in my example but most probably the way you understood the Loop Viewer function.
1- You can change the way blocks are linked in order to include a "NO GO" inside the loop as shown:



2- If you want to simply stop at the loop 3 out of 5 (without any further conditions), you can insert a counter.

In any case, if you can provide a concrete example of your trading idea and at which level you are blocked I can help further ...

Cheers

Ok let us talk practice,

I created an example based on your suggestions: used a counter and Boolean var.



You would expect to get just 2 Orders,
instead you get 4
for each OnCandle.

Cheers,
mosu_d

.
.


No more feedback on Practical example... ?

.
.
.

Hi there,

Kindly be patient and you'll get the needed feedback.
We'll get back to you asap.

Thanks for your understanding.

Thought we are doing that since the beginning

Alright, back to your query:

I've made the following modification to your file:
- The counter should be reset to 0 and not 1 otherwise it will start from 1 to 2 (one loop) and not from 0 to 2 (2 loops)
- I've blocked the pending open by the IF condition related to the counter to make sure only 2 loops are performed. In your previous example the Boolean check is not doing his job as the reset is sitting outside the Loop viewer I believe. I'll let you analyze and test further the attached flow. Your comments are welcome!

Cheers !

Hi,

This is the final solution I have reached. Not the most elegant, but can't see a way to improve it.




Thank you for the help.
This thread can be closed.

Cheers,
mosu_d

Just to add a precision:

The variable "Candle amount" of "Get Historical Candles" block is used to select the number of previous candles data to be retrieved and stored as an array of data and NOT the number of loops to be performed by loop viewer block.
In other words, when ONE loop is made, the information related to the 4 previous candles is retrieved and stored in the output of the loop viewer. Up to the user to decide how to use these data.

Your last post became quite ambiguous with regards to the initial requirement. The use of the dynamic shift value is understood and is a common method to work with dynamic shift but I can't see the sense here.

Cheers