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Understand why Why does standardized output contain negative values while min-max output does not? + ↗ Standardization centers data at the mean (μ \mu μ ), so values below the mean become negative. Min-max normalization shifts and scales data so the minimum becomes 0 and the maximum becomes 1, keeping all values non-negative within [0, 1].
Conditions: Standardization uses z = x − μ σ z = \frac{x - \mu}{\sigma} z = σ x − μ .; Min-max uses X norm = X − X min X max − X min X_{\text{norm}} = \frac{X - X_{\min}}{X_{\max} - X_{\min}} X norm = X m a x − X m i n X − X m i n .
Standardization centers data at the mean (μ \mu μ ), so values below the mean become negative. Min-max normalization shifts and scales data so the minimum becomes 0 and the maximum becomes 1, keeping all values non-negative within [0, 1].
Conditions: Standardization uses z = x − μ σ z = \frac{x - \mu}{\sigma} z = σ x − μ .; Min-max uses X norm = X − X min X max − X min X_{\text{norm}} = \frac{X - X_{\min}}{X_{\max} - X_{\min}} X norm = X m a x − X m i n X − X m i n .
Meet the concept What is the z-score standardization formula and what statistics does it target? + ↗ Standardization transforms a feature value x x x into z = x − μ σ z = \frac{x - \mu}{\sigma} z = σ x − μ , targeting a mean of 0 and a standard deviation of 1 for the transformed feature.
Conditions: Applied per numerical feature.; Uses the feature mean μ \mu μ and standard deviation σ \sigma σ .; Assumes σ > 0 \sigma > 0 σ > 0 .
Standardization transforms a feature value x x x into z = x − μ σ z = \frac{x - \mu}{\sigma} z = σ x − μ , targeting a mean of 0 and a standard deviation of 1 for the transformed feature.
Conditions: Applied per numerical feature.; Uses the feature mean μ \mu μ and standard deviation σ \sigma σ .; Assumes σ > 0 \sigma > 0 σ > 0 .