OPEN-SOURCE SCRIPT
META: Kahan Summation (Scripting Exercise)
I was curious to see what Pine uses to accumulate numbers. It looks like it uses the simple "add em up" approach, rather than a compensated summation. This means that especially for large numbers, there is an inherent error amount.
This script implements the Kahan Summation Algorithm, also known as compensated summation.
en.wikipedia.org/wiki/Kahan_summation_algorithm
This is part 2 of my study into the builtin stdev function. I think this is why it differs so much from the simple two-pass solution.
This script implements the Kahan Summation Algorithm, also known as compensated summation.
en.wikipedia.org/wiki/Kahan_summation_algorithm
This is part 2 of my study into the builtin stdev function. I think this is why it differs so much from the simple two-pass solution.
開源腳本
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in publications is governed by House rules. 您可以收藏它以在圖表上使用。
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