[R] Grabbing Column and Row titles

[chuck.01]

I would suggest reading some introductory manuals on R; specifically (with
regards to your question) how to construct a function.   Basically, "dat" is
a variable input to the function.  Everywhere you see "dat" is replaced by
whatever you put in; for example:  f(x) puts the data.frame "x" in for "dat"
throughout the function.  

If you plan of expanding this function, I think you need to read a little
bit first (perhaps a lot actually) so you know the basic mechanics.
  
happy reading.


Rambler1 wrote
> 
> in this code: 
> 
> f <- function(dat, ...) { 
>         dat[upper.tri(dat, TRUE)] <- NA 
>         i <- which(dat == 1, arr.ind = TRUE) 
>         data.frame(matrix(colnames(dat)[as.vector(i)], ncol = 2))
> } 
> 
> I am planning to make this part of a larger function is there anyway I can
> extract the code without the "function(dat,...){}" and have it run in a
> larger function? 
>  Also what is the context of the command "dat" R is very new and confusing
> to me and sometimes ?# doesn't fully explain it for me. Thank you!
> 
> 
> 
> chuck.01 wrote
>> 
>> This is true with regard to all things you don't understand in R... use
>> question mark (?) # this will show you the manual, or help page
>> 
>> ?dput  
>> 
>> also, make sure you hit the "quote" button when you reply on this forum
>> so that people know what you are replying to. 
>> 
>> I used dput() to create the following (see previous post):
>> 
>> x <- structure(list(a = c(0L, 1L, 0L), b = c(1L, 0L, 1L), c = c(0L,
>> 1L, 0L)), .Names = c("a", "b", "c"), class = "data.frame", row.names =
>> c("a",
>> "b", "c")) 
>> 
>> now see what "x" is: 
>> 
>>> x
>>   a b c
>> a 0 1 0
>> b 1 0 1
>> c 0 1 0 
>> 
>> 
>> now use dput():
>> 
>>> dput(x)
>> structure(list(a = c(0L, 1L, 0L), b = c(1L, 0L, 1L), c = c(0L, 
>> 1L, 0L)), .Names = c("a", "b", "c"), class = "data.frame", row.names =
>> c("a", 
>> "b", "c"))
>> 
>> Now if you paste this in your post, people can easily "play" around with
>> your data and try to help. 
>> 
>> Good luck with your endeavors. 
>> 
>> 
>> 
>> 
>> Rambler1 wrote
>>> 
>>> Thank you very much I will try this and see how it goes. Also what do
>>> you mean by using dput() to post? I'm new to the blog. Than you again.
>>> 
>> 
> 


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