[R] Filtering

Martin Maechler maechler at stat.math.ethz.ch
Fri Apr 20 09:06:17 CEST 2007

>>>>> "Soare" == Soare Marcian-Alin <soarealin at gmail.com>
>>>>>     on Fri, 20 Apr 2007 01:32:30 +0200 writes:

    Soare> Hello Everybody,
    Soare> How can I filter a dataset?

Have you tried


?  filter() is a standard function and mentions others.

Further note that statisticians often talk of "smoothing"
when engineers talks of "filtering"

    Soare> Im trying to filter the dataset EuStockMarkets monthly and quarter.

    Soare> data(EuStockMarkets)
    Soare> ftse = EuStockMarkets[,4]

    Soare> Alin

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