Get Last 60sec data

William Roeder 2017.10.22 19:20 #1

Of course it's possible. Use a one second timer and store your data in an array.

yuv98 2017.10.23 04:38 #2

whroeder1:
Of course it's possible. Use a one second timer and store your data in an array.

And if I want the data of 20min in an array that every second I will get new data and erase the last data? I'll get a huge array. And what about 100min?

Btw, I can also use only high/low data.

Thank you!

webrequest doesn't contain post How i can store From theory to practice

Fernando Carreiro 2017.10.23 10:14 #3

yuv98: And if I want the data of 20min in an array that every second I will get new data and erase the last data? I'll get a huge array. And what about 100min? Btw, I can also use only high/low data.

There is no difference if you want to buffer/store 1 second bar data for 60 seconds, 29 minutes or 100 minutes. You still have to store the data in an organised array. By organised, I mean use a array of a structure that keeps track of all the data you need, such as open, close, high, low, volume, EMAs, Heikin Ashi or what ever else you need to keep a running value on for each of the 1 second bars.

You don't have to delete and reconstruct the arrays for each new 1 second bar. Just loop through a pre-sized array for the window size you require, keeping an a index/pointer for the "Tail" and "Head" of the data (standard coding 101 techniques, eg. a FIFO queue array).

Besides, in MetaTrader/MQL5 you have access to History Data for every single real tick quote, so you can easily build very accurate 1 second bar data without having to collect it one-by-one on every OnTick event (see CopyTicks() and CopyTicksRange() functions).

PS! You could also use Object Oriented Programming (classes, etc.), but since you are having difficulty with a simply Array solution, it is best that you first understand the basics before diving into the "deep end" of OOP programming.

RSI EA on a Simple green bar testing Value of close price

yuv98 2017.10.25 09:00 #4

Fernando Carreiro:

There is no difference if you want to buffer/store 1 second bar data for 60 seconds, 29 minutes or 100 minutes. You still have to store the data in an organised array. By organised, I mean use a array of a structure that keeps track of all the data you need, such as open, close, high, low, volume, EMAs, Heikin Ashi or what ever else you need to keep a running value on for each of the 1 second bars.

You don't have to delete and reconstruct the arrays for each new 1 second bar. Just loop through a pre-sized array for the window size you require, keeping an a index/pointer for the "Tail" and "Head" of the data (standard coding 101 techniques, eg. a FIFO queue array).

Besides, in MetaTrader/MQL5 you have access to History Data for every single real tick quote, so you can easily build very accurate 1 second bar data without having to collect it one-by-one on every OnTick event (see CopyTicks() and CopyTicksRange() functions).

PS! You could also use Object Oriented Programming (classes, etc.), but since you are having difficulty with a simply Array solution, it is best that you first understand the basics before diving into the "deep end" of OOP programming.

Thanks!

William Roeder 2017.10.25 13:17 #5

whroeder1: Of course it's possible. Use a one second timer and store your data in an array.

I posted a circular buffer at Stuck on retrieving previous bid prices by each second? - Timeframes - MQL4 and MetaTrader 4 - MQL4 programming forum