Nothing

```
`ensemble.weights` <- function(
weights=c(0.9, 0.8, 0.7, 0.5),
best=0, min.weight=0, exponent=1.0,
digits=6
)
{
names.weights <- names(weights)
weights <- as.numeric(weights)
# also allow weights to be larger than 1, since they will be forced to sum to 1
# if(any(weights > 1.0)) {stop("Input weights are expected to be ranged between 0 and 1")}
names(weights) <- names.weights
# weights should not be negative
if (min.weight < 0) {min.weight <- 0}
weights[weights < min.weight] <- 0
weights[is.na(weights)] <- 0
#
# special case if all weights are zero
if (sum(weights) == 0) {return(weights)}
#
# select best weights
# ties are handled correctly
lw <- length(weights)
lp <- sum(as.numeric(weights > 0))
if (best < 1) {best <- lp}
if (lp < best) {best <- lp}
weights.sorted <- sort(weights, decreasing=T)
min.best <- weights.sorted[best]
weights[weights < min.best] <- 0
#
# apply exponents
weights <- weights^exponent
#
# scaling to 1
tot <- sum(weights)
weights <- weights/tot
weights <- round(weights, digits=digits)
#
names(weights) <- names.weights
return(weights)
}
```

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