Category "mean"

Swift Array extension for standard deviation

I am frequently needing to calculate mean and standard deviation for numeric arrays. So I've written a small protocol and extensions for numeric types that seem

Rolling mean, standard deviation in dbplyr

I want to set a new variable with rolling function (rolling mean, stdev...etc.) in dbplyr Here is a database library(odbc) library(DBI) library(tidyverse) libra

numpy mean of complex numbers with infinities

numpy seems to not be a good friend of complex infinities While we can evaluate: In[2]: import numpy as np In[3]: np.mean([1, 2, np.inf]) Out[3]: inf The f