Hello, this is my first post here so would like to thank you in advance for sharing your knowledge.

Im trying to write a code that will plot the average daily price, starting at 9:30 am ET on the /ES 5 min chart for example.

The logic is as follows:

After the second bar is closed (at 9:40 am), the average will be AVG_1=(close+close[1])/2.
As the 3rd bar closes (at 9:45), the average will be AVG_2=(close+close[1]+close[1])/3 or AVG2=(AVG_1+close)/2...and so on
until the market closes. Restart the calculation on the next day at 9:30.

It's the same logic as VWAP, but no volume only price.

Thanks again for your assistance.

I think this is what you're looking for...

 

Code

def firstBar = SecondsFromTime(930) == 0; def isOpen = SecondsFromTime(930) >= 0; def priceTotal = if firstBar then close else if isOpen then priceTotal[1] + close else 0; def priceCount = if firstBar then 1 else if isOpen then priceCount[1] + 1 else 0; plot averagePrice = priceTotal / priceCount;