[R] converting a character string to a subscripted numeric variable

[Sundar Dorai-Raj]

Charles Annis, P.E. wrote:
> Dear R-helpers:
> 
> It seems that I have a mental block.  (Some say that it sits atop my
> shoulders.)
> 
> For reasons too tedious to retell I have an R object:
> 
> 
>>input.line[7]
> 
> [1] "-13.24, -11.24, -9.24, -7.24, -5.24, -3.24, -1.24, 0.76, 2.76, 4.76,
> 6.76, 8.76, 10.76, 12.76, 14.76, 16.76, 18.76, 20.76, 22.76, 24.76, 26.76,
> 28.76, 30.76, 32.76, 34.76, 36.76, 38.76, 40.76, 42.76, 44.76, "
> 
> 
> I would like to convert this into a subscripted variable, Beta, something
> that should be straightforward if I had *almost* what I have.
> 
> I'd like to say
> 
> Beta <- c(-13.24, -11.24, -9.24, -7.24, -5.24, -3.24, -1.24, 0.76, 2.76,
> 4.76, 6.76, 8.76, 10.76, 12.76, 14.76, 16.76, 18.76, 20.76, 22.76, 24.76,
> 26.76, 28.76, 30.76, 32.76, 34.76, 36.76, 38.76, 40.76, 42.76, 44.76)
> 
> but I can't because:
> 
> input.line[7] is a character string, and
> 
> it ends in a comma.
> 
> 
> This cannot be as difficult as I have found it to be.  Can anyone help?
> 
> Copious Thanks.

How about:

x <- "-13.24, -11.24, "
x <- as.numeric(strsplit(x, ",")[[1]])
x[!is.na(x)]

--sundar