Tradour explained
A legacy outcome is a historical measure retained for reproduction and provenance even though it is not the current canonical definition. It must remain visibly labelled and separate.
Make it click
Measurements made with an earlier ruler remain useful when the ruler and method are preserved. Relabelling them as if made with the new ruler corrupts the record.
Now put that into markets
Tradour reproduces supplied workbook outcomes to understand prior analysis while withholding canonical claims that require missing market prices and timestamps.
Legacy fields keep source version, transformation and known limitations. They can inform exploration but cannot silently populate canonical result fields.
Look for the legacy label and definition link. Compare with canonical availability rather than assuming equivalent horizons.
Numerical agreement in some rows does not establish interchangeability. Legacy outcomes can contain different cut-offs, proxies or exclusions.
Takeaway
