R help - Oct 2012 - Number of decimal places

When estimating values ??each determined similarly, and in which get to them
by algebraic operations in some cases, are rounded with 0 decimal places and
in other cases with 2 or 3 decimal places. What is happening?
Thank you.



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For example
> a=12344.567
> a
[1] 12344.57
> b=234.567
> b
[1] 234.567
> a=111111111111234235423.56
> a
[1] 1.111111e+20
> b=11111111111.898
> b
[1] 11111111112
> 



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Putting back the context:

( We are not looking at this with Nabble.)
> When estimating values ??each determined similarly, and in which get to
them
> by algebraic operations in some cases, are rounded with 0 decimal places
and
> in other cases with 2 or 3 decimal places. What is happening?
> Thank you.
On Oct 26, 2012, at 7:13 AM, DMMS wrote:
> For example
> 
>> a=12344.567
>> a
> [1] 12344.57
>> b=234.567
>> b
> [1] 234.567
>> a=111111111111234235423.56
>> a
> [1] 1.111111e+20
>> b=11111111111.898
>> b
> [1] 11111111112
>> 
> 
?options

Pay attention to digits and scipen arguments

Also look at:

 ?format
> 
> --
David Winsemius, MD
Alameda, CA, USA