Message-ID: <3E9DF199.3010207@pdf.com>
Date: 2003-04-17T00:13:13Z
From: Spencer Graves
Subject: wait, t(sapply()) does not work
What are the symptoms?
Do "sapply(tester.L, data.class)". If some of the attributes of
tester.L are data.frames, then do, e.g., "sapply(tester.L[[1]],
data.class)". If the objects passed to "function(x) x <- x[1,]" are
data.frames, the ouput of "function(x)x <- x[1,]" may be a list, not a
vector, with attributes of different classes.
Spencer
Remko Duursma wrote:
> I just noticed that the code
>
> data.frame(t(sapply(tester.L, function(x) x <- x[1,])))
>
> does not result in a nice dataframe, although is.data.frame gives TRUE. It works on the small example in the previous emails, but something weird happens for a larger dataset.
>
> remko
>
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