[R] Create NA

[Uwe Ligges]

On 23.03.2010 04:27, stephen sefick wrote:
> I think you don't need to multiply... you need to figure out where
> your NAs need to be and then index the vector and assign "NA" to it:
>
> x[1:5]<- "NA"


... which would coerce x to be character while

x[1:5] <- NA

keeps the mode of x.

Uwe Ligges






> On Mon, Mar 22, 2010 at 8:05 PM, tj<girlme80 at yahoo.com>  wrote:
>>
>> Hi,
>>
>> How can I create an NA?
>> for example, i have this program but it has errors
>>
>>> x=scan()
>> 1: 1 2 3 4 5
>> 6:
>> Read 5 items
>>> "na"*x
>> Error in "na" * x : non-numeric argument to binary operator
>>
>>
>> what should I multiply x so that I will get an NA? And I really need to
>> multiply that with my x vector.
>> I need this output: (na,na,na,na,na)
>>
>> Thank you for your time and help!=)
>> --
>> View this message in context: http://n4.nabble.com/Create-NA-tp1678543p1678543.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
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>
>
>