[R] Subsetting a list

[ernesto]

Dennis Fisher wrote:

>Colleagues,
>
>I have created a list in the following manner:
>     TEST    <- list(c("A1", "A2"), c("B1", "B2"), c("C1", "C2"))
>
>I now want to delete one element from the list, e.g., the third.  The  
>command
>     TEST[[3]]
>yields (as expected):
>     [1] "C1" "C2"
>
>The command
>     TEST[[-3]]
>yields:
>     Error: attempt to select more than one element
>
>How can I accomplish delete one or more elements from this list?
>
>I am running R2.2.0 on a Linux platform.
>
>Dennis
>
>Dennis Fisher MD
>P < (The "P Less Than" Company)
>Phone: 1-866-PLessThan (1-866-753-7784)
>Fax: 1-415-564-2220
>www.PLessThan.com
>
>
>
>	[[alternative HTML version deleted]]
>
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>
>  
>

TEST[[3]] <- NULL

Lists are not subsetable like data.frames or arrays, see the manuals.

EJ