cmf_coef_xyz_sv_ex_ind: Computes coefficient at point (x,y,z) using support vectors...
In conmolfields: Continuous molecular fields

Computes coefficient at point (x,y,z) using support vectors for continuous indicator field

1	cmf_coef_xyz_sv_ex_ind(mdb, a, ai, alpha, x, y, z, field, atomlists)

`mdb`
`a`
`ai`
`alpha`
`x`
`y`
`z`
`field`
`atomlists`

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as
cmf_coef_xyz_sv_ex_ind <- function(mdb, a, ai, alpha, x, y, z, field, atomlists) {
  coef <- 0.0
  nsv <- length(ai)
  for (isv in 1:nsv) {
    imol <- ai[isv]
	mol <- mdb[[imol]]
    natoms <- length(mol$atoms)
    for (iatom in atomlists[[imol]]) {
      atom <- mol$atoms[[iatom]]
      dist2 <- (x - atom$x)^2 + (y - atom$y)^2 + (z - atom$z)^2
      coef <- coef + a[isv] * exp(- alpha * dist2 / 2.0)
    }
  }
  coef
}