[R] how can get rid of the level in the table

[Petr Pikal]

   Hi

   The question is a bit messy.

   On 14 Apr 2005 at 23:11, Cuichang Zhao wrote:

   > hello,

   > 1. when i get a column data from a table, it always follows with the

   By table you mean table or data frame?

   >  level. for exmaple if i have a table = (v1, v2), and table$v1 = (1,
   2,

   > 3); and col1 <- table$v1; then there is level assign to the table,

   so v1 is a factor or not?

   > with 1 is level1 and 2 is level2 3 is level3 ect. however, when are

   >  want  to  get  col1[3],  which is 3, by when i add the col1[3] to a
   list,

   what list?

   >  the is actually appears as 33 instead of because the level for 3 is
   3.

   >  In  fact,  the  data i want is 3 not 33, so i don't want any levels
   come

   > with the data each time when read from the column in the table. how

   > can i do that?

   if v1 is a factor as.numeric(as.character(v1)) will make it numeric

   >

   >  2.  how  can  i  read from a file from a specific folder, and how i
   create

   > a folder and write a file to that folder?

   what file?

   see  read.*,  write.*,  source,  sink,  RODBC  and other possible file
   manipulation functions.

   and

   > PLEASE do read the posting guide!

   > http://www.R-project.org/posting-guide.html

   Cheers

   Petr

   >

   >

   > Thank you very much.

   >

   > C-Ming

   >

   > April 14,2005

   >

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   Petr Pikal

   petr.pikal at precheza.cz