How to fix a problem with the U.S. stock market? - General

Aleksey Mavrin 2020.02.29 21:18 #81

Andrey Dik:
Yeah, that's what I did.

but there are often ticks on the same character with the same time, when there are several ticks in a millisecond

That's where I get stuck in the logic.

for practical purposes, I should probably take the worst case scenario

Andrey Dik 2020.07.12 18:57 #82

There are numbers from StartN to EndN inclusive.

You need to make combinations of CountN in each

I wrote this script for the number of numbers in a combination of 3:

input int      StartN = 0;
input int      EndN   = 1;
input int      CountN = 5;

void OnStart()
{
  string str = "";
  
  //уровень 0
  for (int i = StartN; i <= EndN; i++)
  {
    //str = StringSubstr (str, 0, 0);
    //str += (string)i;
    str = (string)i;
    
    //уровень 1
    for (int k = StartN; k <= EndN; k++)
    {
      str = StringSubstr (str, 0, 1);
      str += (string)k;
      
      //уровень 2
      for (int l = StartN; l <= EndN; l++)
      {
        str = StringSubstr (str, 0, 2);
        str += (string)l;
        
        Print (str);
      }
    }
  }
}

which outputs:

2020.07.12 21:48:47.763 sProbCandlComb XAUUSD...,H4: 111

2020.07.12 21:48:47.763 sProbCandlComb XAUUSD..,H4: 110

2020.07.12 21:48:47.763 sProbCandlComb XAUUSD..,H4: 101

2020.07.12 21:48:47.762 sProbCandlComb XAUUSD..,H4: 100

2020.07.12 21:48:47.762 sProbCandlComb XAUUSD..,H4: 011

2020.07.12 21:48:47.762 sProbCandlComb XAUUSD..,H4: 010

2020.07.12 21:48:47.762 sProbCandlComb XAUUSD..,H4: 001

2020.07.12 21:48:47.762 sProbCandlComb XAUUSD..,H4: 000

I'm confused, how can I make it work with a specified number of CountN?

Unique groups of numbers On the unequal probability Not the Grail, just

Aliaksandr Hryshyn 2020.07.12 19:12 #83

The binary representation of a number...

Andrey Dik 2020.07.12 19:18 #84

Aliaksandr Hryshyn:

Binary representation of a number...

that's not the point, it's just the parameters I took, from 0 to 1 inclusive.

Take [0;2]

and you get:

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD...,H4: 222

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 221

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 220

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 212

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 211

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 210

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 202

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 201

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 200

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 122

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 121

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 120

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 112

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 111

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 110

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 102

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 101

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 100

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 022

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 021

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 020

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 012

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 011

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 010

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 002

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 001

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 000

MultiSymbol Expert Advisor in Strategy tester problems money managment

Igor Makanu 2020.07.12 19:34 #85

Andrey Dik:

There are numbers from StartN to EndN inclusive.

I need to make combinations of CountN in each

I am so confused, how to make it work with a given number of CountN?

I think I've done this before, here's the topic

https://www.mql5.com/ru/forum/335077

Aliaksandr Hryshyn 2020.07.12 19:48 #86

Andrey Dik:

it's not that, it's just that I took parameters from 0 to 1 inclusive.

take [0;2]

and we get:

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD...,H4: 222

2020.07.12 22:16:57.703 sProbCandlComb XAUUSD..,H4: 221

...

So the problem comes down to converting the number of the main loop to another number system, plus a correction for StartN

Andrey Dik 2020.07.12 20:34 #87

Aliaksandr Hryshyn:

So the problem comes down to converting the number of the main loop to another number system, plus a correction for StartN

Can I have the code?

Andrey Dik 2020.07.12 20:36 #88

Igor Makanu:

I think I've done this before, here's a thread

https://www.mql5.com/ru/forum/335077

Not everything is fine with the code, but it seems to be what I need, I'll fix it, I'll post it here.

now the code doesn't generate the full length combinations

Andrey Dik 2020.07.12 22:32 #89

Igor Makanu:

I think I've done this before, here's a thread

https://www.mql5.com/ru/forum/335077

It didn't get what I needed, the code has too many loops of unclear purpose.

My solution is this:

#property script_show_inputs

//--- input parameters
input int      StartN = 0;
input int      EndN   = 1;
input int      CountN = 3;

void OnStart ()
{
  string base [];
  
  //алгоритм сочетаний без повторений
  CombinationGenerator (StartN, EndN, CountN, base);

  //выведем полученные комбинации в принт
  for (int i = 0; i < ArraySize (base); i++) Print (base [i]);
}

string CreateString (int &base [])
{
  string s = "";
  for (int i = 0; i < ArraySize (base); i++) s += (string)base [i];

  return s;
}

//Алгоритм сочетаний без повторений
void CombinationGenerator (int startN, int endN, int rowLen, string &base [])
{
  ArrayResize (base, (int)pow (EndN - StartN + 1, CountN));
  int comb [];
  ArrayResize (comb, CountN);
  ArrayInitialize (comb, StartN);
  string str = "";
  int pos = 0;
  base [pos] = CreateString (comb);

  bool flag = true;

  while (flag && !IsStopped ())
  {
    for (int l = 0; l < CountN; l++)
    {
      if (comb [l] + 1 <= EndN)
      {
        comb [l] += 1;

        pos++;
        base [pos] = CreateString (comb);
        break;
      }
      else
      {
        if (l == CountN - 1) flag = false;
        comb [l] = StartN;
      }
    }
  }
}

I assume this code with as few iterations as possible.

result at [0;1] numbers with number in row 3:

2020.07.13 01:21:41.037 sProbCandlComb EURUSD...,M5: 111

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 011

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 101

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 001

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 110

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 010

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 100

2020.07.13 01:21:41.037 sProbCandlComb EURUSD..,M5: 000

result for values [0;2] with number in row 4:

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2222

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1222

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0222.

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2122

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1122

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0122

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2022

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1022

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0022.

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2212

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1212

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0212

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2112

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1112

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0112

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2012

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1012

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0012

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2202

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1202

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0202

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2102

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1102

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0102

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2002

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1002

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0002

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2221

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1221

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0221

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2121

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1121

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0121

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2021

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1021

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0021

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2211

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1211

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0211

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2111

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1111

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0111

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2011

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1011

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0011

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2201

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1201

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0201

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2101

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1101

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0101

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2001

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1001

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0001

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2220

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1220

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0220

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2120

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1120

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0120

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2020.

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1020

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0020

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2210

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1210

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0210

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2110

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1110

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0110

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2010

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1010

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0010

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2200

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1200

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0200

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2100

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1100

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0100

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 2000

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 1000

2020.07.13 01:22:50.851 sProbCandlComb EURUSD..,M5: 0000

The algorithm logic is simple and the same as the calculation rule: add 1 to the digit, if the digit contains more than the number we set as minimum and go to the next digit, if there is no "zeroing" at the next digit, we go back to the first one.

True, the digits I have not on the right but on the left, well, whoops.

0000

0001

0010

0011

0100

0101

....

etc.

It may be possible to get even nicer code by using recursion, but it is unlikely to be faster.

[ARCHIVE!] Any rookie question, Getting Deals Information - Pip Values

Igor Makanu 2020.07.12 22:56 #90

Andrey Dik:

your example is not a combination but a permutation without repetition

and my example is a combination without repetition

Optimisation of algorithms. - page 9