[R] seq curiosity

[Martyn Plummer]

On 03-May-2002 John Aitchison wrote:

> Is this a bug or a feature?
> 
>> seq(0:4)  # colon 
> [1] 1 2 3 4 5
>> 0:4
> [1] 0 1 2 3 4
>> seq(0,4)
> [1] 0 1 2 3 4
> 
> I am aware that the first usage is incorrect, but I was surprised that
> I did not get any sort of syntax error

Feature.  With a single (vector) argument, seq returns the sequence
1:n where n is the length of the vector.  This is described on the
help page ( see argument "along" ).

Martyn
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