Nothing
getWeightsMRI <- function(nnei, sigma=1){
if(! nnei %in% c(26))
stop("'nnei' has to be among (26)")
width <- ((nnei + 1)^(1/3) - 1) / 2
expand <- t(data.matrix(expand.grid(-width:width,
-width:width,
-width:width)[-(nnei/2 +1),]))
weights <- dnorm(sqrt((expand[1,]/width)^2 + (expand[2,]/width)^2 +
(expand[3,]/width)^2), mean=0, sd=sigma)
weights /sum(weights)
}
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.