Re: [R] How to avoid "$ operator is invalid for atomic vectors"

From: Patrick Burns <pburns_at_pburns.seanet.com>
Date: Thu, 06 Nov 2008 19:43:59 +0000

cruz wrote:
> Thanks for all the responses, they are all very helpful:)
>
>
>> you don't need to assign dimension or classes to your objects.
>> It's easier if you do like this
>>
>
> this is something that really bothers me, when I need to define an
> object which i will later fill with data, the dimension of this object
> should not be fixed because it will grow...
>
> so in MATLAB, i.e. we define x = [ ],
> what about in R?
>

It is generally best in R to create an object as the size it will end up being and then make assignments into the object.

But using the theory of giving you enough rope to hang yourself, you can do things like:

x <- numeric(0)

or

x <- NULL

Patrick Burns
patrick_at_burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")

> Thanks,
> cruz
>
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>
>
>



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu 06 Nov 2008 - 19:47:22 GMT

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