Data Science

Compute mean, standard deviation and z-scores for a data set.

Find a percentile and quartiles of a data set.

Compute the Pearson correlation coefficient of x,y pairs.

Fit y = mx + b to x,y pairs (least squares).

Precision, recall, F1, accuracy from a confusion matrix.

Compute covariance of paired x,y data.

Compute the simple moving average of a series.

Compute a weighted mean from value:weight pairs.

Euclidean, Manhattan and cosine similarity between two vectors.

Min-max normalize and z-score standardize a data set.