Looking at your question, I found myself wondering if you really
wanted to do this at all. It appeared so much like inefficient habits
acquired in the years of BASIC and Excel use. If you are interested in
storing a dataframe to disk and then bringing it back into an R
session, then the save and load functions are more appropriate.
Append works on vectors (and apparently on lists although the append
help page does not document that behavior), but will probably not have
the desired effect on dataframes.
Look instead at the rbind function if you are interested in adding row-
wise to a dataframe.
> tail(DF)
Month Week Estpassage MedFL
8 Aug 34 358541 35
9 Sept 35 747839 35
10 Sept 36 459682 36
11 Sept 37 609567 36
12 Sept 38 979475 36
13 Sept 39 837189 36
> tail( rbind(DF, c("Aug", 36, 555, 44)) )
Month Week Estpassage MedFL
9 Sept 35 747839 35
10 Sept 36 459682 36
11 Sept 37 609567 36
12 Sept 38 979475 36
13 Sept 39 837189 36
14 Aug 36 555 44
--
David Winsemius
On Feb 9, 2009, at 5:17 AM, venkata kirankumar wrote:
Hi all,
I am new to R-project
I have a problem when when ever I am going to append a row in a
*.csv file
that is
in R-project I created one dataframe and I saved it in "res.csv"
and again
I got some results in dataframe with same column names and i tried
to append
in a new row of same "res.csv" file but its appending again with
columnnaes like
first time when i created the csv file
"","max","min","avg"
"1",22,7,12.9833333333333
and when I try to append another column for this file its writing like
"","max","min","avg"
"1",22,7,12.9833333333333
"","max","min","avg"
"1",19,7,12.9918699186992
can any one suggest how to solve this problem
and how can I save new rows without taking column names
and also i tried with "append()" function to append to
dataframes then
also its giving the same result
thanks in advance
[[alternative HTML version deleted]]
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
