[R] setting attributes

[Stephen Liu]

Hi folks,

An Introduction to R

3.3 Getting and setting attributes
http://cran.r-project.org/doc/manuals/R-intro.html#Vectors-and-assignment

> z <- 0:9
> z
 [1] 0 1 2 3 4 5 6 7 8 9

> attr(z, "dim") <- c(10,10)
Error in attr(z, "dim") <- c(10, 10) : 
  dims [product 100] do not match the length of object [10]

Please help me to understand what mistake I committed?  TIA

B.R.
Stephen L