[R] Using the object of character data type as the name of the slot

[Duncan Murdoch]

On 21/06/2007 4:07 PM, Alex Tsoi wrote:
> Dear all,
> 
> I have a character string object:
> 
>> chara
> [1]  "The name of first slot"
> 
> and a list object:
> 
>> class( try1)
> [1] "list"
> 
> 
> what I want to do is to use the chara as a slot's name of "try1".
> 
> Of  course I could do it like:
> 
>> try1$"The name of first slot"  <- matrix("", 3, 4)
> 
> to create a slot of 3x4 matrix with the name "The name of first slot"
> 
> However, I would like to know how could I utilize the object chara , and to
> use the characters it contains as the name of the slot of try1.

You can use

slot(try1, chara) <- matrix("", 3, 4)

as long as the slot name contained in chara really is a slot.

Duncan Murdoch