The Z-score formula normalizes the data by subtracting the mean (μ) from the original value (X) and dividing the result by the standard deviation (σ). The formula is X′=σX−μ.
Conditions: Requires knowing the mean and standard deviation of the dataset
The Z-score formula normalizes the data by subtracting the mean (μ) from the original value (X) and dividing the result by the standard deviation (σ). The formula is X′=σX−μ.
Conditions: Requires knowing the mean and standard deviation of the dataset
Standardization (or Z-score normalization) is a linear transformation that centers the data around zero and scales it to have a standard deviation of one. It subtracts the mean of the feature from each data point and divides by the standard deviation.
Conditions: Applied to a continuous numerical feature.; Requires knowing the mean and standard deviation of the feature.; The standard deviation must not be zero (to avoid division by zero).
Standardization (or Z-score normalization) is a linear transformation that centers the data around zero and scales it to have a standard deviation of one. It subtracts the mean of the feature from each data point and divides by the standard deviation.
Conditions: Applied to a continuous numerical feature.; Requires knowing the mean and standard deviation of the feature.; The standard deviation must not be zero (to avoid division by zero).