
Hi,
 
Could you please help me in solving the following error message:
 
Error in `[.data.frame`(mytestdata, fp_temp == 1) : 
  undefined columns selected
 
when I use scan instead on read.table, I reicieve this message:
 
Error in names(ret2) <- rowns : 
  'names' attribute [172] must be the same length as the vector [152]
 
Many thanks,
Nancy
  		 	   		  
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