D07-F05-A01 · six synthetic OHLCV scenarios · three parameter presets
On-Balance Volume (OBV) guided lab
Choose → step → observe → explain → compare. Inspect the state behind each reading; a scale classification is not a trading instruction.
Data-basis checkpoint: Store the instrument identifier, venue or consolidated scope, volume unit (shares, contracts, base units, ticks, or another declared measure), bar interval, session and official-close policy, time zone, correction/finality state, and matched price-volume corporate-action basis beside every production result.
1 · Choose the path and convention
2 · Observe the causal state
3 · Audit the visible calculation
The table shows only the current row and up to seven prior rows. Scroll this table locally on narrow screens.
Equal closes contribute zero; zero-volume bars leave the line unchanged. All rows are author-generated synthetic teaching data. Component traces and classifications are author-derived. A tiny positive close change and a very large positive close change receive the same full-volume sign. OBV measures signed participation, not move size. This lab makes no provider observation, prediction, profitability, or investment-advice claim.