I´m new in statistics and I have only basic skills in maths, I write my master thesis for the university, there I use a simple density map as I thought. But now I have to descripe the theorie behind the toolfunction 😞
A kernel function like these which I had found in the literature citation of arcgis, [ATTACH=CONFIG]21864[/ATTACH]
with a quadratic kernel function of these! [ATTACH=CONFIG]21865[/ATTACH]
I´m rather new in statistics/maths and in the original literature it´s seems that it is assumed that verybody know the "variables" meaning or I haven´t found the whole explanation.
I know the following variables as I mean: ^f(x) = density estimator N = a sample of observations X1 , ... Xn K = kernel function (K will be a radially symmetric unimodal probability density function for example a quadratic) h = bandwidth or smoothing parameter
But is anybody here how can guess or say what the variables mean (in two or three short words please) nhd = ? x = ? Xi = ? if xTx < 1 = ?
Thanks it would be great because I need it as a short explanation in my master thesis!