R-alpha: more bugs with names/dims, etc.:

[Martin Maechler]

 x_1:4
 data.frame(x=2*x, y=3*x) - structure(x, names=letters[seq(x)])

## R :
## Error in data.frame(x = 2 * x, y = 3 * x) - structure(x, names = letters[seq(x)]) : non-numeric argument to binary operator

## S:
  x y 
1 1 2
2 2 4
3 3 6
4 4 8
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