Hi
I observed an interesting behavior of R. Can you find where is the bug, or
it is not a bug but made deliberately.
- Hide quoted text -
> arr = c(); #defined the empty array
> a= c("x1", "x2");
> b = c("y1", "y2");
> arr = rbind(arr,a); #row bind the first character array -a
> arr = rbind(arr,b); # row bind the second character array-b
Everything ok upto this point, arr content is displayed as follows
> arr
[,1] [,2]
a "x1" "x2"
b "y1" "y2"
Now I delete any row:
arr = arr[-1,];
The value of arr is :
> arr
[1] "y1" "y2"
Problem: I want to access the first row now using:
>arr[1, ]
Error in arr[1, 1] : incorrect number of dimensions
Though it is showing the value as under:
> arr[1]
[1] "y1"
> arr[2]
[1] "y2"
I think, when there is single row, R is considering it as an array and not
as matrix. But why it is so?????????????/
-Fahim
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