statistics.correlation()
statistics.correlation() is a Python function in the Statistics Module category. Returns the Pearson correlation coefficient between two datasets. The syntax is statistics.correlation(x, y, /). Parameters: x, y — paired datasets. Returns: Float between -1 and 1. A typical example: statistics.correlation([1,2,3], [2,4,6]) # 1.0 (perfect correlation). A close sibling is statistics.mean(), which returns the arithmetic mean (average) of numeric data. A close sibling is statistics.median(), which returns the median (middle value) of numeric data. A close sibling is statistics.median_low(), which returns the low median of numeric data (for when there are an even number of values). A close sibling is statistics.median_high(), which returns the high median of numeric data. More about this category: Statistical functions — mean, median, mode, stdev, correlation. For a broader walkthrough, read the Statistics Module guide. Related Statistics Module entries: statistics.mean(), statistics.median(), statistics.median_low(), statistics.median_high(), statistics.mode(), statistics.multimode().