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Quantitative Finance · Glosario

¿Qué es Cross-sectional z-score, rank transform?

También llamado: cross-sectional z-score · rank transform

Definition 6.3 Research Craft: Predictors, Backtests, Measurement, Portfolios · Capítulo 6 — Anatomy of a Predictor

The cross-sectional z-score of a predictor on a date is its value minus that date’s mean across securities, divided by that date’s standard deviation, usually clipped at a few units. Its rank transform replaces each value by its rank on the date, scaled to lie in (−12,12)(-\tfrac12, \tfrac12).

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