Random number

[samir]

I'm not a programmer, but I'm very involved haha. A long time ago I created a random number indicator, now I need it (I deleted it), now I do not know how I did it. number = random generated number.
I have tried with:

int number = Random(1,5);
int number = rand(1,5);
int number = Random ()% 100 + 1;
int number = rand()% 100 + 1;

However, he tells me that "Rand" does not exist in the context, I think it is because "it is not" the "stdlib.h". I repeat I do not know much about programming. And "Random" I do not know what it is, it tells me that "it uses a variable that does not". But I remember, some time ago I managed to do the random number, someone could help me. ? Very thanks and regards.

[koganam]

I'm not a programmer, but I'm very involved haha. A long time ago I created a random number indicator, now I need it (I deleted it), now I do not know how I did it. number = random generated number.
I have tried with:

int number = Random(1,5);
int number = rand(1,5);
int number = Random ()% 100 + 1;
int number = rand()% 100 + 1;

However, he tells me that "Rand" does not exist in the context, I think it is because "it is not" the "stdlib.h". I repeat I do not know much about programming. And "Random" I do not know what it is, it tells me that "it uses a variable that does not". But I remember, some time ago I managed to do the random number, someone could help me. ? Very thanks and regards.

Random rnd = new Random();
int month = rnd.Next(1, 13); // creates a number between 1 and 12
int dice = rnd.Next(1, 7); // creates a number between 1 and 6
int card = rnd.Next(52); // creates a number between 0 and 51

[NinjaTrader_Kate]

Hello samir,

Thank you for your post.

koganam has hit the nail on the head here. I'd just like to add that there's publicly available documentation from Microsoft on the Random class in C#:

https://docs.microsoft.com/en-us/dotnet/api/system.random?view=netframework-4.8

Please let us know if we may be of further assistance to you.

[samir]

Very thanks.

[samir]

Thank you very much, a separate question. Does anyone know in which area of the documentation should I read in order to make the indicator work in the strategy tester and also in the historical candles?
The behavior of the indicator does not comply with what I want, which is "The higher the value of the input, the higher the probability of being a 2" (between 1 and 99), 100 is always 2 (probability indicator, or at least that's what I want to do) (and it works well on new candles that appear live) But, in historical candlesticks and strategy tester almost always the indicator is flat and suddenly it has minimal variation, in the new real live candles the indicator moves a lot and works according to what I want.

                Probabilidad                    = 10;
                AddPlot(Brushes.GreenYellow, "Resultado");
            }
        }

        protected override void OnBarUpdate()
        {
                            Random rnd = new Random();
                    int numerogenerado = rnd.Next(1, 101);
                    if (numerogenerado <= Probabilidad)
            {
                Value[0] = 2;
            }
            else
            {
                Value[0] = 1;
            }

I appreciate your help, thank you very much. Greetings.

[samir]

[koganam]

Thank you very much, a separate question. Does anyone know in which area of the documentation should I read in order to make the indicator work in the strategy tester and also in the historical candles?
The behavior of the indicator does not comply with what I want, which is "The higher the value of the input, the higher the probability of being a 2" (between 1 and 99), 100 is always 2 (probability indicator, or at least that's what I want to do) (and it works well on new candles that appear live) But, in historical candlesticks and strategy tester almost always the indicator is flat and suddenly it has minimal variation, in the new real live candles the indicator moves a lot and works according to what I want.

 Probabilidad = 10;
AddPlot(Brushes.GreenYellow, "Resultado");
}
}

protected override void OnBarUpdate()
{
Random rnd = new Random();
int numerogenerado = rnd.Next(1, 101);
if (numerogenerado <= Probabilidad)
{
Value[0] = 2;
}
else
{
Value[0] = 1;
}

I appreciate your help, thank you very much. Greetings.

Move the declaration of rnd out of OnBarUpdate(). Declare it at the class level.

As written you are generating a new random number on each pass instead of using the one that already exists.

[samir]

Extremely thanks kogaman.