Re: [R] Error message: $ operator is invalid for atomic vectors

2012-08-01 Thread arun
Hi Rui, Thanks.  It was my fault.  I had both of these saved (read.table (), data.frame(read.table()).  I think I accidentally pasted the second one, and got the error.  A.K. - Original Message - From: Rui Barradas To: arun Cc: r-help Sent: Wednesday, August 1, 2012 9:41 AM Subj

[R] Error message: $ operator is invalid for atomic vectors

2012-08-01 Thread arun
HI, The code was working perfectly fine yesterday and today, until half an hour ago.  Couldn't find any problems in the code. Still, I am getting error message. myMatrix <- data.matrix(read.table(text=" Name    Age ANTONY    27 IMRAN  30 RAJ  22 NAHAS 

Re: [R] Error message: $ operator is invalid for atomic vectors

2012-08-01 Thread Rui Barradas
Hello, Because there's a bug in the way I read the data: data.matrix is not well used here, it transforms all variables in character vectors and may cause problems such as > "9" < "10" [1] FALSE > "9" > "10" [1] TRUE It was David Winsemius that pointed this out. As a side effect, data.matrix