Description Usage Arguments Details Value
Utility function to add some small positive noise to weights. This is mainly done to randomly choose between solutions of equal weight. Without adding noise to weights lp solvers may return an identical solution over and over while there are multiple solutions of equal weight. The generated noise is positive to prevent that weights will be zero or negative.
1 
x 

max_delta 
when supplied noise will be drawn from $[0,max_delta]$ otherwise see details 
... 
currently not used 
When no max_delta
is supplied, add_noise will use the minimum difference
larger than zero divided by the length(x)
.
numeric
vector/matrix with noise applied.
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