Re: [R] all.equal and names?

[Spencer Graves]

Hi, Duncan: 

     Thanks much.  I think I remember reading about both "all.equal" 
and "identical" in Venables and Ripley (2002) MASS.  Unfortunately, I 
don't have MASS handy now, and I could not find it otherwise, so I asked. 

     What needs to happen to upgrade the "all.equal" documentation to 
add "identical" to the "see also"? 

     Best Wishes,
     Spencer
Duncan Murdoch wrote:
On Wed, 18 Aug 2004 10:27:49 -0400, Spencer Graves
<[EMAIL PROTECTED]> wrote :
 

    How can I compare two objects for structure, names, values, etc.?  
With R 1.9.1 under Windows 2000, the obvious choice "all.equal" ignores 
names and compares only values: 

   

all.equal(1, c(a=1))
     

[1] TRUE
    Under S-Plus 6.2, I get the comparison I expected: 

   

all.equal(1, c(a = 1))
     

[1] "target, current classes differ: integer : 
named"                                                   
[2] "class of target is \"integer\", class of current is \"named\" 
(coercing current to class of target)"
   

If you want the explanation you're out of luck, but identical() does
the test:
 

identical(1, c(a = 1))
   

[1] FALSE
Duncan Murdoch
 

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