Revisions to Kernel Density Estimation

removed ambiguous kernel tag

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edited Oct 6, 2015 at 14:15

kernel-smoothing kernel

Post Reopened by Danica, gung - Reinstate Monica, Peter Flom

occurred Sep 19, 2015 at 11:59

added formula; edited

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edited Sep 19, 2015 at 10:29

In the Kernel density estimation formula below (from Wikipedia), what do the values of $x$ and $x_i$ represent?

$$ \hat f_h(x) = \frac{1}{n}\sum_{i=1}^n K_h(x-x_i) = \frac{1}{nh}\sum_{i=1}^n K\bigg(\frac{x-x_i}{h}\bigg) $$

I am implementing this formula but I am not sure about what they really represent.

The formula is at this link: https://en.wikipedia.org/wiki/Kernel_density_estimation.
I I know what values use for xi$x_i$, but iI don't know what I'm passing in xfor $x$.

added 158 characters in body

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edited Sep 19, 2015 at 7:40

In the Kernel density estimation formula what do the values of $x$ and $x_i$ represent?

I am implementing this formula but I am not sure about what they really represent.

The formula is at this link: https://en.wikipedia.org/wiki/Kernel_density_estimation.
I know what values use for xi, but i don't know what passing in x