r - If else statement comparing to 0 or NA -

June 15, 2012

I have an element in the data frame tmp which may contain any number, 0 or NA if that element is neither 0 nor Or NA, then I should have something Otherwise, nothing happens, I think it looks like this:

  if (tmp [2, 1 9]! = (0, NA)) {something}    I get this error: if error (TMP [2, 1 9] == (0) AA): {: absent value where TRUE / FALSE is required, I do not know It is not possible to compare both an int and string in R, or if I am misusing the bus or operator. I have tried different forms in different cases but are not able to determine the problem Please help!  
 
  @ GSE said in a comment, you  is.na : < / P> 
  if (tmp [2, 1 9]! = 0 || is.na (tmp [2, 1 9])) {# do stuff}  < And ? NA .   

 


  

















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