Displaying 3 results from an estimated 3 matches for "mandriva2009".
2010 May 31
2
accessing a data frame with row names
...mn1,column2
row1,0.1,0.2
row2,0.3,0.4
using the command:
dataframe<-read.table("/path/to/file.csv",header=T,row.names=1)
When I try the command:
dataframe[,2]
I receive the response:
NULL
I was expecting:
row1 0.2
row2 0.4
What is my error with the syntax please?
Yours,
r251
mandriva2009
2010 Aug 24
2
percentage sign in expression
Readers,
According to the documentation for the function 'plotmath' there is no
apparent possibility to add the percent sign (%) to a plot function,
e.g.
plot(a[,1]~b[,2],ylab=expression(x~%),xlab=expression(z))
How to achieve this please?
yours,
rhelp at conference.jabber.org
r251
mandriva2009
2011 Jan 29
1
data extrapolation function
...aimportextra.csv something like:
1,1990
2,1991
3,1993
...
to previously known data
10,2000
...
final extrapolated value, e.g.
20,2010
I didn't ; this suggests that I chose the wrong function! Can someone
please advise me of the correct function to use for this extrapolation
task?
yours,
r251
mandriva2009