Nothing
gweibull <- function(shape)
{
if (is.numeric(shape) == TRUE)
{
output <- vector(length = length(shape))
pos.NA <- shape <= 0
output[pos.NA] <- NA
output[!pos.NA] <- 1 - 2^(-1/shape[!pos.NA])
sum.NA <- sum(pos.NA)
if (sum.NA == 1L)
{
warning("an element of the object 'shape' is not positive")
}
else if (sum.NA >= 1L)
{
warning(paste(sum.NA, " elements of the object 'shape' are not positive"))
}
}
else
{
output <- NA
warning("object 'shape' must be numeric")
}
return(output)
}
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