Get decimals (digits) of symbol easily

[ttodua]

At this moment, afaik, there is no builtin method/property that will get (in NinjaScript) current symbols's digits amount after dot
Would be nice if there was any (like it's in MetaTrader) so, i.e.

on ES (i.e. which has price like: 2915.75 ) gave the amount of digits after dot

Digits --->2

on EURUSD (price like 1.23456 )

Digits ---> 5

so, that's simple.

[NinjaTrader_Jesse]

Hello TazoTodua,

You are correct, there would be anything NinjaScript specific for that purpose. You can find many ways to do this in terms of general C# by searching online for "C# count decimal places". Here is a stack overflow post with many examples: https://stackoverflow.com/questions/...ess-of-culture


Please let me know if I may be of additional assistance.

[ttodua]

Jess, yes, but we are talking about how to handle that simply with NinjaTrader. So, would be nice a feature to be a inherited method, like `Digits()`, or the property named `Digits`.
i think it would be easy to add that method in NinjaScriptBase, it's so easy for NT devs to implement that.

[koganam]

At this moment, afaik, there is no builtin method/property that will get (in NinjaScript) current symbols's digits amount after dot
Would be nice if there was any (like it's in MetaTrader) so, i.e.

on ES (i.e. which has price like: 2915.75 ) gave the amount of digits after dot

Digits --->2

on EURUSD (price like 1.23456 )

Digits ---> 5

so, that's simple.

TickSize? If you know the TickSize, getting the number of digits after the decimal point is trivial c#. Just write your own method.

[koganam]

At this moment, afaik, there is no builtin method/property that will get (in NinjaScript) current symbols's digits amount after dot
Would be nice if there was any (like it's in MetaTrader) so, i.e.

on ES (i.e. which has price like: 2915.75 ) gave the amount of digits after dot

Digits --->2

on EURUSD (price like 1.23456 )

Digits ---> 5

so, that's simple.

Actually, many years ago, I needed something similar. I went searching for it in my methods library. Enjoy!

        /// <summary>
        /// Return the number of decimal places in the argument.
        /// </summary>
        /// <param name="dblNumber">Value to process.</param>
        /// <returns>Number of decimal places in dblNumber.</returns>
        protected int GetNumberDecimalPlaces(double dblNumber)
        {
            string[] parts = dblNumber.ToString().Split(new Char[] { '.', ',' });
            return parts[0] != dblNumber.ToString() ? parts[1].Length : 0;
        }

Of course, you can make it public access, and/or static.

It is not very robust, and requires a well behaved input. As I almost only needed it for exactly the purpose of using it against TickSize, my data was guaranteed well-behaved. For robustness, you might want to throw an exception if the input has more than one period or comma, or is otherwise malformed (eg., contains a space, etc). Basically throw an exception if the input is not a double. Try typeof().

[ttodua]

thanks Koganam