Read the help page or better the manuals! And before posting, please
read the posting guide.
You get the help page for indexing by, e.g.:
help("[")
Uwe Ligges
Paul Adams wrote:
Hello everyone,I am having a difficult time understanding what commands
are used to add and remove elements froma matrix or data frame.For ex
ample if I want to remove element=[1,50] or elements [1,50:63] or elements
[2:4,20:35]from a matrix and replace with NA or any number what command
must I use to remove the element and then to replace the element..Must
I use two commands or can I use one command to replace the element
I read the section in the documentation on index arrays.Do I have to make
index arrays to replace elements or is there an easier way?
Any help would be appreciated
PAUL
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
