zerofill

Fill NA's with zeros in a time series to allow analysis when the matrix must be complete.

Collection of econometric functions for performance and
        risk analysis. This package aims to aid practitioners and
        researchers in utilizing the latest research in analysis of
        non-normal return streams.  In general, it is most tested on
        return (rather than price) data on a regular scale, but most
        functions will work with irregular return data as well, and
        increasing numbers of functions will work with P&L or price
        data where possible.

zerofill: zerofill

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