[R] if else statement error

[gcheer3]

Hello,
 
I am doing a if else statement in R. But it always comes out error such as
'unexpected symbol' 
There are two variables. ini and b. when ini=1, a=3; when ini>1 and b>2,
a=3; all other situations, a=6. I don't know where it is wrong. 
Here is my code

ini=3 
b=4
     if (ini==1) {
  a=3
     }
    else if (ini>1 and b>2 ) {
   a=3
    }
   else {a=6}
 
 
Thanks a lot.
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