[R] I want to fill a column in with 0 or 1 depending on another columns input

[David Winsemius]

On Mar 5, 2012, at 2:56 PM, kevin123 wrote:

>
> This is a portion of my data frame
>
> MemberID    Specialty                 Surgery          Internal
> 1 42286978     Surgery                      NA                   NA
> 2 97903248     Internal                     NA                   NA
> 3  2759427      Internal                      NA                   NA
> 4 73570559    Surgery                        NA                  NA
>
> There are four columns. In the Specialty column there are two options
> Surgery/Internal, These options have there own columns.
>
> I want to fill a column in with 0 or 1 depending on another columns  
> input
>
> I am finding it hard to figure out how to do the following:
>
>    MemberID    Specialty                 Surgery          Internal
> 1  42286978     Surgery                      1                   0
> 2  97903248     Internal                     0                  1
> 3   2759427      Internal                      0                  1
> 4  73570559    Surgery                        1                0

You (user1250865) have already been given THREE answers on  
StackOverflow. Crossposting is deprecated.  (Unless of course this is  
a homework problem and both kevin123 and user1250865 are in the same  
class. Then ...  homework is also deprecated.

-- 

David Winsemius, MD
West Hartford, CT