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 > > __________________________________________________ > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html Petr Pikal [EMAIL PROTECTED] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html