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:
> 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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