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2012 Feb 15
2
Control number of assets in resulting portfolio with optimizations using package fPortfolio
...ortfolio to run minimum variance portfolio optimizations in R. I already know how to set portfolioSpecs, portfolio objects and constraints. Unfortunately I am not able to set the following type of constraints. I have a timeSeries object with returns data for roughly 1.5k assets for 261 subperiods (workingdays) and want to compute the global minimum variance portfolio, considering following constraints: - Leverage = 1 (fully invested) - the lower / upper weights constraints (can be done by box constraints) for individual assets are e.g. +0,01 / +0,04 - and the prob...