Checks whether a series of fitted density values (such as given out as
`y`

-component of `density`

) is unimodal.

`unimodal.ind(y)`

y

numeric vector of fitted density values in order of
increasing x-values such as given out as
`y`

-component of `density`

.

Logical. `TRUE`

if unimodal.

# NOT RUN { unimodal.ind(c(1,3,3,4,2,1,0,0)) # }