Discussing the article: "Price Action Analysis Toolkit Development (Part 84): Validating Recorded Double-Bottom Samples"
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Check out the new article: Price Action Analysis Toolkit Development (Part 84): Validating Recorded Double-Bottom Samples.
This work adds an explainable validation module to the recording toolkit for double bottoms. It finds and filters swing lows, selects the neckline, quantifies depth, low similarity, symmetry and recovery, and assigns a rule-based status and scores accepted pairs. The settings are configurable, the process is reproducible, and the original sample data remains intact for comparison across rule sets.
A trader can recognize a W-shaped movement quickly, but visual judgement alone does not identify the exact lows, neckline, symmetry or confirmation candle. Similar charts may therefore receive different labels. A developer faces the related problem that code cannot use close-enough; it needs indices, prices, thresholds and an explicit result.
The recorder created previously supplied common ground. It preserved a selected candle sequence, its derived geometry and normalized prices in CSV format. However, placement in the double-bottom folder still represented the trader's hypothesis rather than proof that the sample met a measurable definition.
Part 84 challenges that label. The trader receives a consistent structural assessment, while the developer receives a deterministic rule engine that can be inspected and extended. Instead of returning only true or false, the validator reports key measurements: the two lows, the neckline, separation, depth, low difference, symmetry, recovery, the decisive event, and the conformity score for the selected accepted pair. When no pair passes, the panel displays a general rejection reason.
By the end, a stored sample can be classified as INVALID, CANDIDATE, CONFIRMED or FAILED. The validation module uses configurable settings and remains independent of chart drawing and file writing. Its scope is structural analysis, not a trade signal, profitability estimate or automatic scan of the complete chart.
Author: Christian Benjamin