Rounding or Modulus

[Master Shake]

I have had only one programming class a long time ago and am in over my head (Shake is pretty dumb.) All I want to do is round down to the nearest 0.25 increment.

Say my number is 1879.92 (closer to 1880 than 1879.75), I would like a value of 1879.75 returned.
If the number is 1764.27, I would like 1764.25 returned.

I think modulus only works for returning whole numbers.

Is there an easier way than using a nested if statement like?

double price;
double roundedprice;
double remainder;

//price is calculated earlier in another section of code

roundedprice = Round(price);
remainder = price - roundedprice;

if (remainder >= 0.75) { price = roundedprice + 0.75 }
if (remainder >= 0.50) { price = roundedprice + 0.50 }

if (remainder >= 0.25) { price = roundedprice + 0.25 }

if (remainder >= 0.00) { price = roundedprice + 0.00 }

Any thoughts?

The actual part of code that I am trying to insert this into follows:

            // Condition set 1
            if (DefaultInput[0] > ChandelierSAR(5, 3.5).Chandelier[0]
                && ToTime(Time[0]) > ToTime(8, 30, 0)
                && ToTime(Time[0]) < ToTime(15, 0, 0))
            {
                EnterShortStopLimit(DefaultQuantity, ChandelierSAR(5, 3.5).Chandelier[0], ChandelierSAR(5, 3.5).Chandelier[0], "");
                Alert("MyAlert0", Priority.High, "", "", 1, Color.White, Color.Black);
            }

            // Condition set 2
            if (DefaultInput[0] < ChandelierSAR(5, 3.5).Chandelier[0]
                && ToTime(Time[0]) > ToTime(8, 30, 0)
                && ToTime(Time[0]) < ToTime(15, 0, 0))
            {
                ExitShortStopLimit(ChandelierSAR(5, 3.5).Chandelier[0], ChandelierSAR(5, 3.5).Chandelier[0], "", "");
            }

[rliq]

Are all of the numbers to a maximum of 2 decimal places?

[rliq]

Still messy but....

price = remainder >= 0.75 ? roundedprice + 0.75 : 
    remainder >= 0.5 ? roundedprice + 0.5 : 
    remainder >= 0.25 ? roundedprice + 0.25 :
    roundedprice;

Or something along the lines of multiplying by 100, converting to integer, taking the modulo 25, doing the business and dividing by 100....

[Master Shake]

Yes, two number decimals only.

[ricnew2]

hello, i just give it a try. here's what i did.

remainder = price - Math.Truncate(price);
price = Math.Truncate(price) + (Math.Truncate(remainder / 0.25) * .25);


hope that helps. =)

[Master Shake]

I guess I left out a valuable bit of information:

for "Condition Set 1" the price needs to be rounded down to the nearest quarter

for "Condition Set 2" the price needs to be rounded UP to the nearest quarter

I guess I need to rethink the code a bit since I have to insert that portion inside the cases now.

I had the following: renaming roundedprice = chandyRounded, remainder = chancyRemainder, and price = ChandelierSAR(5, 3.5).Chandelier[0]

       private double chandyRounded = 1; // Default setting for ChandyRounded
        private double chandyRemainder = 1; // Default setting for ChandyRemainder
        private double roundUp = 1; // Default setting for RoundUp
        private double roundDown = 1; // Default setting for RoundDown
        // User defined variables (add any user defined variables below)
        #endregion

        /// <summary>
        /// This method is used to configure the strategy and is called once before any strategy method is called.
        /// </summary>
        protected override void Initialize()
        {

            CalculateOnBarClose = true;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
        {
			chandyRounded = Round(ChandelierSAR(5, 3.5).Chandelier[0];
			chandyRemainder = ChanderlierSAR(5, 3.5).Chandelier[0] - chandyRounded;
			
            // Condition set 1
            if (DefaultInput[0] > ChandelierSAR(5, 3.5).Chandelier[0]
                && ToTime(Time[0]) > ToTime(8, 30, 0)
                && ToTime(Time[0]) < ToTime(15, 0, 0))
            {
                EnterShortStopLimit(DefaultQuantity, ChandelierSAR(5, 3.5).Chandelier[0], ChandelierSAR(5, 3.5).Chandelier[0], "");
                Alert("MyAlert0", Priority.High, "", "", 1, Color.White, Color.Black);
            }

            // Condition set 2
            if (DefaultInput[0] < ChandelierSAR(5, 3.5).Chandelier[0]
                && ToTime(Time[0]) > ToTime(8, 30, 0)
                && ToTime(Time[0]) < ToTime(15, 0, 0))
            {
                ExitShortStopLimit(ChandelierSAR(5, 3.5).Chandelier[0], ChandelierSAR(5, 3.5).Chandelier[0], "", "");
                
            }

[rliq]

Note... there is an [Edit] button against your post, to save multiple posts...

[rliq]

Could you please repost the code above between code tags eg:
[C0DE]
nicely formatted code goes here
[/C0DE]

the zero in CODE should be a letter O.

[Master Shake]

Here is what I have so far.

        private double chandyRounded = 1; // Default setting for ChandyRounded
        private double chandyRemainder = 1; // Default setting for ChandyRemainder
        private double roundUp = 1; // Default setting for RoundUp
        private double roundDown = 1; // Default setting for RoundDown
        // User defined variables (add any user defined variables below)
        #endregion

        /// <summary>
        /// This method is used to configure the strategy and is called once before any strategy method is called.
        /// </summary>
        protected override void Initialize()
        {

            CalculateOnBarClose = true;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
        {
			chandyRounded = Math.Round(ChandelierSAR(5, 3.5).Chandelier[0]);
			chandyRemainder = ChandelierSAR(5, 3.5).Chandelier[0] - chandyRounded;
			
            // Condition set 1
            if (DefaultInput[0] > ChandelierSAR(5, 3.5).Chandelier[0]
                && ToTime(Time[0]) > ToTime(8, 30, 0)
                && ToTime(Time[0]) < ToTime(15, 0, 0))
            {
                roundDown = chandyRemainder >= 0.75 ? chandyRounded + 0.75 : 
    				chandyRemainder >= 0.5 ? chandyRounded + 0.5 :
    				chandyRemainder >= 0.25 ? chandyRounded + 0.25 :
    				chandyRemainder;
				EnterShortStopLimit(DefaultQuantity, roundDown, roundDown, "");
                Alert("MyAlert0", Priority.High, "", "", 1, Color.White, Color.Black);
            }

            // Condition set 2
            if (DefaultInput[0] < ChandelierSAR(5, 3.5).Chandelier[0]
                && ToTime(Time[0]) > ToTime(8, 30, 0)
                && ToTime(Time[0]) < ToTime(15, 0, 0))
            {
                roundUp = chandyRemainder <= 0.25 ? chandyRounded + 0.25 : 
    				chandyRemainder <= 0.5 ? chandyRounded + 0.5 :
    				chandyRemainder <= 0.75 ? chandyRounded + 0.75 :
    				chandyRemainder;
				ExitShortStopLimit(roundUp, roundUp, "", "")
            }