Skip to content

Error Missing values where true/false needed

7 messages · Frederic Ntirenganya, Boris Steipe, PIKAL Petr +1 more

Original
Frederic Ntirenganya
# 
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/
PIKAL Petr
# 
Hi

Error message seems to be clear
data$Rain[i_NA] produces probably NA
Error in if (x == 60) 1 + 1 : missing value where TRUE/FALSE needed
[1] "Errrorrr"

Cheers
Petr
________________________________
Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny pouze jeho adres?t?m.
Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu.
Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat.
Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu.

V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?:
- vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a to z jak?hokoliv d?vodu i bez uveden? d?vodu.
- a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout; Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce s dodatkem ?i odchylkou.
- trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m dosa?en?m shody na v?ech jej?ch n?le?itostech.
- odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost ??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn? pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn? osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi ?i osob? j?m zastoupen? zn?m?.

This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients.
If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system.
If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner.
The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email.

In case that this e-mail forms part of business dealings:
- the sender reserves the right to end negotiations about entering into a contract in any time, for any reason, and without stating any reasoning.
- if the e-mail contains an offer, the recipient is entitled to immediately accept such offer; The sender of this e-mail (offer) excludes any acceptance of the offer on the part of the recipient containing any amendment or variation.
- the sender insists on that the respective contract is concluded only upon an express mutual agreement on all its aspects.
- the sender of this e-mail informs that he/she is not authorized to enter into any contracts on behalf of the company except for cases in which he/she is expressly authorized to do so in writing, and such authorization or power of attorney is submitted to the recipient or the person represented by the recipient, or the existence of such authorization is known to the recipient of the person represented by the recipient.
Michael Dewey
# 
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:

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      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.

            

      
      
      
    

        
[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:

            

      
      
      
    

        

      
      
    

            

      
      
      
    

        

  
  


  


      

    

    

      
      

        


  

        

      Boris Steipe
    

    

      
      #
    

  


  

      
On Nov 26, 2014, at 1:27 AM, Frederic Ntirenganya <ntfredo at gmail.com> wrote:

        

            

      
      
      
    

        
No you don't. You access the contents of the cell via an index for which you have previously determined that the contents is NA. Then you compare that contents with 60.

The error is in the logic of these steps:

            

      
      
      
    

        
HTH,
B.

  
  


  


      

    

    

      
      

        


  

        

      PIKAL Petr
    

    

      
      #
    

  


  

      
Huh

and what is the result of e.g.

data$Rain[indicNAs[1]]

I bet that you will see

[1] NA

and your if question askes if (NA eqals 60) which results in NA and "if" is telling you that it expects TRUE or FALSE but not NA.

I do not see how much clearer the error message shall be.

Cheers
Petr

            

      
      
      
    

        

      
      
    

            

      
      
      
    

        

      
      
    

        
________________________________
Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny pouze jeho adres?t?m.
Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu.
Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat.
Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu.

V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?:
- vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a to z jak?hokoliv d?vodu i bez uveden? d?vodu.
- a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout; Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce s dodatkem ?i odchylkou.
- trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m dosa?en?m shody na v?ech jej?ch n?le?itostech.
- odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost ??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn? pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn? osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi ?i osob? j?m zastoupen? zn?m?.

This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients.
If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system.
If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner.
The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email.

In case that this e-mail forms part of business dealings:
- the sender reserves the right to end negotiations about entering into a contract in any time, for any reason, and without stating any reasoning.
- if the e-mail contains an offer, the recipient is entitled to immediately accept such offer; The sender of this e-mail (offer) excludes any acceptance of the offer on the part of the recipient containing any amendment or variation.
- the sender insists on that the respective contract is concluded only upon an express mutual agreement on all its aspects.
- the sender of this e-mail informs that he/she is not authorized to enter into any contracts on behalf of the company except for cases in which he/she is expressly authorized to do so in writing, and such authorization or power of attorney is submitted to the recipient or the person represented by the recipient, or the existence of such authorization is known to the recipient of the person represented by the recipient.

  
  


  


      

    

    

      
      

        


  

        

      Michael Dewey
    

    

      
      #
    

  


  

      
Comments in-line below

        
On 26/11/2014 06:27, Frederic Ntirenganya wrote:

            

      
      
      
    

        
Actually I am Michael, Petr is one of the other respondents.

            

      
      
      
    

        
But you are not testing the indexes, see below

            

      
      
      
    

        
My comments on your code are preceded ## to make them clear

            

      
      
      
    

        
## so at this point indicNAs is the indexes of all the NA
## values in dat$Rain

            

      
      
      
    

        
## since i_NA is the index of a value of data$Rain which
## you know to be NA this evaluates to NA and if() complains
## I expect you really meant some other variable in data
## incidentally it is better not to call your data data