Top "Statistics" questions

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Calculating arithmetic mean (one type of average) in Python

Is there a built-in or standard library method in Python to calculate the arithmetic mean (one type of average) of …

python math statistics average mean
How to normalize an array in NumPy?

I would like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version …

python numpy scikit-learn statistics normalization
Calculating Pearson correlation and significance in Python

I am looking for a function that takes as input two lists, and returns the Pearson correlation, and the significance …

python numpy statistics scipy
In R, how to find the standard error of the mean?

Is there any command to find the standard error of the mean in R?

r statistics
How to remove outliers from a dataset

I've got some multivariate data of beauty vs ages. The ages range from 20-40 at intervals of 2 (20, 22, 24....40), and for each …

r statistics outliers
How do I calculate percentiles with python/numpy?

Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array? I am looking for something …

python numpy statistics numpy-ndarray percentile
How to find the statistical mode?

In R, mean() and median() are standard functions which do what you'd expect. mode() tells you the internal storage mode …

r statistics r-faq
How to count total lines changed by a specific author in a Git repository?

Is there a command I can invoke which will count the lines changed by a specific author in a Git …

git command-line statistics repository
Simple way to calculate median with MySQL

What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for …

sql mysql statistics median
Generating statistics from Git repository

I'm looking for some good tools/scripts that allow me to generate a few statistics from a git repository. I've …

git graph statistics