[R] if else statement error

[Duncan Murdoch]

On 03/10/2009 3:33 PM, Marianne Promberger wrote:
> Two problems with your code:
> 
> (1) The "else" has to be on the same line as the closing "}"  -- this was
> confusing for me as well.
> 
> (2) "and" probably should be "&", but read up on logical operators: ?&

Better to always use && in an if.

Duncan Murdoch

> 
> Try:
> 
> ini=3
> b=4
> if (ini==1) {
>   a=3
> } else if (ini>1 & b>2 ) {
>   a=3
> } else {
>   a=6
> }
> 
> 
> HTH,
> 
> Marianne
> 
> 
> 
> gcheer3 <gcheer3 at gmail.com> 03-Oct-09 17:08:
>> 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.
>> -- 
>> View this message in context: http://www.nabble.com/if-else-statement-error-tp25730173p25730173.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
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>