normalization

Standardize data columns in R

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I have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages. I plan on running some linear regression on this dataset in the future, but I’d like to do some pre-processing beforehand and standardize the columns to have zero mean and unit variance. I’ve been told … Read more

How to normalize a NumPy array to a unit vector?

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I would like to convert a NumPy array to a unit vector. More specifically, I am looking for an equivalent version of this normalisation function: def normalize(v): norm = np.linalg.norm(v) if norm == 0: return v return v / norm This function handles the situation where vector v has the norm value of 0. Is … Read more