How does Robust scaling minimize the effect of outliers?
- By ignoring them during the scaling process
- By removing the outliers
- By scaling based on the median and interquartile range instead of mean and variance
- By transforming the outliers
Robust scaling minimizes the effects of outliers by using the median and the interquartile range for scaling, instead of the mean and variance used by standardization. The interquartile range is the range between the 1st quartile (25th percentile) and the 3rd quartile (75th percentile). As the median and interquartile range are not affected by outliers, this method is robust to them.
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