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naming vectors/ matrices in R

3 messages · emj83, Dieter Menne, Erich Neuwirth

emj83
# 
I would like to create a series of vectors in a loop and name them with
letters.

I know the command letters gives me the 26 letters of the alphabet.

For example, I have a dataframe, called A, with 6 columns.
[1] "a" "b" "c" "d" "e" "f"

I would like to extract the first letter "a", and put the first column of
dataframe A in a vector called "a"
[1] "a"

but when I type
Warning message:
In e[1] =A[, 1] :
  number of items to replace is not a multiple of replacement length

It thinks I am trying to replace the first element of e with the first
column of A.

is there any other way in which I can achieve this?

Thanks in advance
Dieter Menne
# 
emj83 <stp08emj <at> shef.ac.uk> writes:
This is really difficult to understand. Try to make the example so that 
is can be pasted in R. For example, where is your dataframe A?

A = data.frame(a=1:10,b=1:10)
e = A[,1]
e


Dieter
Erich Neuwirth
# 
This is probably what you want

mydf<-as.data.frame(matrix(1:60,10))
for (i in (1:dim(mydf)[2])) assign(letters[i],mydf[,i])


I would not, however, recommend it.
It really does not produce very readable code.
emj83 wrote: