gaussianKernel

The standard normal (gaussian) kernel: e^(-u²/2) / √(2π).

Basic example

The standard normal density, kernelDensity’s default kernel. It takes the distance from an observation in bandwidths, peaks at about 0.3989, and never quite reaches zero.

import {gaussianKernel} from "@d3plus/math";

gaussianKernel(0);
gaussianKernel(0.5);
gaussianKernel(1);
gaussianKernel(2);
gaussianKernel(3);

Parameters

import {gaussianKernel} from "@d3plus/math";

urequirednumber

The scaled distance from an observation.