Message-ID: <51FCF7CE.3000109@sapo.pt>
Date: 2013-08-03T12:30:06Z
From: Rui Barradas
Subject: Manipulations of a data frame or list -- rename or re-assign?
In-Reply-To: <CAGYnQNTDZaYxx0RUZw75gJH2fb5rmcD7Wd3r9iCJPqCkpMXy9g@mail.gmail.com>
Hello,
Maybe you could keep the original, and reuse only one (another) object
for the intermidiate steps. That's how I would do it.
Hope this helps,
Rui Barradas
Em 03-08-2013 12:27, Ben Harrison escreveu:
> If I am to do a lot of pre-processing operations on some data,
> comprising many steps such as:
>
> -- despike a set of signals
> -- smooth a set of signals
> -- filter
> -- subset
> -- impute missing values
>
> etc... Should I be assigning the result of each operation to a new
> object, and then destroying the old one, or is it fine to reassign the
> object to itself?
>
> df <- sapply(df, someFunction, arg=10)
> OR
> df.new <- sapply(df, someFunction, arg=10)
>
> Ben
> University of Melbourne
>
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