[R] binary AND operators in R

[Duncan Murdoch]

mauede at alice.it wrote:
> I cannot find any R function or operator that performs a binary AND operation, as performed by Fortran built-in function "iand".
> Ideally either R operator "&" or "&&" should do that. But some tests proved they do not:
>   

R doesn't have an operator like iand built in, but I believe the 
packages bitops and bit provide something similar.

Duncan Murdoch
>> A<- 1
>> B <- 2
>> A
>>     
> [1] 1
>   
>> B
>>     
> [1] 2
>   
>> as.numeric(A&B)
>>     
> [1] 1
>   
>> as.numeric(A&&B)
>>     
> [1] 1
>
> The binary content of A should be "10000"
> The binary content of B should be "01000"
> Therefore the  bitwise AND operator should yield 0 !
> I do not know how to fore the binary representation of an unsigned integer when writing  R code. 
> Do you know how to get around this problem ?
>
> Thank you so much.
> Maura
>
>
> tutti i telefonini TIM!
>
>
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