[R] Error Missing values where true/false needed

[Frederic Ntirenganya]

Hi PIKAL,

The error seems to be starnge to me because i access the indices of NAs.
Indices can't be non-applicable.
This is the output of indecs having the NA in my dataset. my dataset is
very big that's why I did not provide it.

> indicNAs <- which(data$Rain %in% NA)
> indicNAs
 [1]   426   792  1158  1890  2256  2622  3354  3720  4086  4818  5184
5550  6282  6648  7014  7746  8112
[18]  8478  9210  9576  9942 10674 11040 11406 12138 12504 12870 13602
13968 14334 15066 15432 15798 16530
[35] 16896 17262 17994 18360 18726 19458 19824 20190

Regards,
Frederic.

Frederic Ntirenganya
Maseno University,
African Maths Initiative,
Kenya.
Mobile:(+254)718492836
Email: fredo at aims.ac.za
https://sites.google.com/a/aims.ac.za/fredo/

On Tue, Nov 25, 2014 at 3:51 PM, Michael Dewey <info at aghmed.fsnet.co.uk>
wrote:

> You do not tell us what you are trying to do but I think there is
> something wrong in the logic of your thinking as on the one hand you are
> selecting just precisely those elements of data$Rain which are NA and then
> testing whether any of them equals 60.
>
>
>
> On 25/11/2014 12:19, Frederic Ntirenganya wrote:
>
>> Dear All,
>>
>> I am getting this error and don't know why it comes. can you please help ?
>>
>> Error in if (data$Rain[i_NA] == 60) { :
>>    missing value where TRUE/FALSE needed
>>
>> The loop is :
>>
>> indicNAs <- which(data$Rain %in% NA)
>>    ind_nonleap = c() # NAs due to non leap years
>>    ind_nonrecord = c() # NAs due to non recording values
>>    for (i_NA in indicNAs ){
>>      if(data$Rain[i_NA] == 60){
>>        ind_nonleap <- append(ind_nonleap,i_NA)
>>      }
>>      else {
>>        ind_nonrecord<-append(ind_nonrecord,i_NA)
>>      }
>>     #cat(ind_nonrecord)
>>     #cat( ind_nonleap)
>>    }
>>    ind_nonleap
>>
>> Regards,
>> Frederic.
>>
>> Frederic Ntirenganya
>> Maseno University,
>> African Maths Initiative,
>> Kenya.
>> Mobile:(+254)718492836
>> Email: fredo at aims.ac.za
>> https://sites.google.com/a/aims.ac.za/fredo/
>>
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> --
> Michael
> http://www.dewey.myzen.co.uk
>

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