# exrs5.r  example  if then else 
print("R exrs5.r running")
# the normal comparison  ==  !=  >=  <=  <  > 
# the normal logical     &&  ||

n = 2
if(n == 2)
{
  print("n == 2")
}

if(((n < 3) && (n > 1)) || n != 3)
{
  cat("n=",n,"\n")
}
  
if(n <= 0)
{
  print("n <= 0")
}
# else    ??? error
# {
#  print("n positive")
# }

print("exrs5.r finished")