Need Help With Heiken Ashi Programming

Hello,

I want to write my own Heiken Ashi alert, I want to know when the Heiken Ashi's bar change color on all the time frames at once.

But first off I'm struggling to calculate the Heiken Ashi Values. Here is the formula:

Description: Heikin Ashi charts calculate their own open (HAO), high (HAH), low (HAL), and close (HAC), using the actual open (O), high (H), low (L), and close (C), of the time frame (e.g. the open, high, low, and close, of each five minues).
Calculation:
HAO = (HAO-1 + HAC-1) / 2
HAC = (O + H + L + C) / 4
HAH = Highest(H, HAO, HAC)
HAL = Lowest(L, HAO, HAC)


Now, the problem is the following. To calculate the HAO you need the previous HAO. The calculate the previous HAO you need the previous previous HAO. What is the initial HAO value?

I'm not sure if I understand this correctly please help me out.

Thanks!

I have a Heikin Ashi Alert indicator if that is any help ?

If you do a search, you will find a few versions.

Does such an indicator exist? Would really appreciate it if you could share it with me!

I found an indicator but it only alerts one timeframe, I need to alert several time frames.

I think this one alerts on one time frame only at a time.

What you want is a MTF HAS colour bar at the bottom of the chart, I will attach both, they are not mine but found on this forum.

Maybe you can adapt them to suit you.

Thanks guys but I got it to work.

I used the initial value as the original value, but started the calculations about 20 bars away, that way the error was at a minimum