?data.matrix
Perhaps:
pairs(data.matrix(asdf[ , 1:7]) )
On Jun 16, 2009, at 10:58 AM, njhuang86 wrote:
Hi all,
As of now, I have a 15x8 matrix (name is "asdf"). The first seven
columns
contain numbers while the last column contains a string. The class
of each
column is "character". When I use the plot function to display a
scatter
plot between any of the two columns, ie. plot(asdf[, 1], asdf[, 2])
everything works fine. However, if I want to use the command "pairs"
to show
all combination of scatter plots between the first seven columns
(without
the columns of strings), it gives me a error message telling me that
I'm
passing a non-numeric arguement to 'pairs'.
As a result, I changed the original matrix into a dataframe via.
as.data.frame(asdf) so the columns are of the class "factor".
However, when
I now utilize the pairs command to plot the scatterplots of the
first seven
columns, the scatterplots are totally off. I think that the pairs
command
changes all the factor columns into numeric columns - and by
performing this
class transformation, the values within each column are also
physically
changed.
I'm just really lost. Is there a way to utilize the pairs command in
my
setting? Or is there a method to change the class of each column
without
physically altering the values? Anyways, thanks in advance!!!
--
View this message in context:
http://www.nabble.com/Question-regarding-dataframes%2C-matrix%2C-frame%2C-etc...-tp24056147p24056147.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help@r-project.org 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.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
R-help@r-project.org 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.
