Standard deviation (represented by the symbol sigma, σ) shows how much variation or "dispersion" exists from the average (mean, or expected value).
I want to calculate the pooled (actually weighted) standard deviation for all the unique sites in my data frame. The …
r function for-loop standard-deviationWhen generating random numbers in R using rnorm (or runif etc.), they seldom have the exact mean and SD as …
r random mean standard-deviationI would like to reproduce the following figure in MATLAB: There are two classes of points with X and Y …
matlab plot ellipse normal-distribution standard-deviationI have a 'file.dat' with 24 (rows) x 16 (columns) data. I have already tested the following awk script that computes …
awk standard-deviationI am trying to get the standard deviation of a user input string. I have as follows, but it returns …
javascript standard-deviationDoes LINQ model the aggregate SQL function STDDEV() (standard deviation)? If not, what is the simplest / best-practices way to calculate …
linq standard-deviationI've searched the SQLite docs and couldn't find anything, but I've also searched on Google and a few results appeared. …
sqlite function standard-deviationA simple example of calculating standard dev: d <- c(2,4,4,4,5,5,7,9) sd(d) yields [1] 2.13809 but when done by hand, the …
r statistics standard-deviationIs anyone else having trouble with the new rolling.std() in pandas? The deprecated method was rolling_std(). The new …
python pandas standard-deviationI have several records with a given attribute, and I want to find the standard deviation. How do I do …
ruby standard-deviation