[R] collapse argument on paste

[Spencer Graves]

The issue you identified is explained in section 3.6 Calling Conventions 
for Functions in Venables and Ripley (2002) Modern Applied Statistics in 
S, 4th ed. (Springer, p. 56):  "... specified arguments occurring after 
the ... argument on the definition must be named exactly".  Since 
"collaps" does not match exactly "collapse", it is interpreted as one of 
the "..." arguments.

hope this helps.
spencer graves

Gabor Grothendieck wrote:
> One gets a different response when abbreviating collapse= in 
> paste?  In the second case, it appears to be acting as if " + " is just 
> another argument to be pasted.
> 
> # expected response
> 
>>paste(c("X","Y"),1:4,sep="",collapse=" + ")
> 
> [1] "X1 + Y2 + X3 + Y4"
> 
> # different!
> 
>>paste(c("X","Y"),1:4,sep="",collaps=" + ")
> 
> [1] "X1 + " "Y2 + " "X3 + " "Y4 + "
> 
> I am using R 1.7.1 on Windows 2000.  The example is taken
> from MASS 2nd ed. page 42.
> 
> Is this a bug?
> 
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