Dear Contributors,
I am surprised that I cannot add legend to a certain plot. Although the
x-axis indicates years, the actual data was in year, month and day format.
I then used as.Date to play around and get what I am looking for. I am,
however, worried that I cannot add legend to the plot no matter how I
tried. Looking at the axis, I tried:
legend(1998,3, c("Climax", "Thule", "Sopo"), lty =
1, col c("black","red","blue")). I also tried:
legend(as.Date(1998-02-10),3, c("Climax", "Thule",
"Sopo"), lty = 1, col
c("black","red","blue"))
but no result and no error.
I have attached the plot in case it will assist in your suggestions.
Many thanks for your time.
Ogbos
> On Jun 22, 2018, at 12:12 PM, Ogbos Okike <giftedlife2014 at gmail.com> wrote: > > Dear Contributors, > > I am surprised that I cannot add legend to a certain plot. Although the > x-axis indicates years, the actual data was in year, month and day format. > I then used as.Date to play around and get what I am looking for. I am, > however, worried that I cannot add legend to the plot no matter how I > tried. Looking at the axis, I tried: > legend(1998,3, c("Climax", "Thule", "Sopo"), lty = 1, col > c("black","red","blue")). I also tried: > > legend(as.Date(1998-02-10),I don't think you understand the difference between character values and numeric values. Thr using as.Date("1998-02-10")> 3, c("Climax", "Thule", "Sopo"), lty = 1, col > c("black","red","blue")) > but no result and no error. > > I have attached the plot in case it will assist in your suggestions. > > Many thanks for your time. > > Ogbos > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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 Alameda, CA, USA 'Any technology distinguishable from magic is insufficiently advanced.' -Gehm's Corollary to Clarke's Third Law
What David Winsemius said, plus:
Does
legend('topleft', c("Climax", "Thule",
"Sopo"), lty = 1, col =
("black","red","blue"))
not work?
It should, which will illustrate that you CAN add a legend to the plot.
The x,y that you supply to legend must be values that are within the x,y range
of the plot. Type
par()$usr
to see what that range is, and I think you will see that 1998 is not within the
plot range.
David showed you how to supply legend with an x value that is, we assume, within
the plot range.
You *should* have had an error on your second try:
> as.Date(1998-02-10)
Error in as.Date.numeric(1998 - 2 - 10) : 'origin' must be supplied
-Don
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
Lab cell 925-724-7509
?On 6/22/18, 12:12 PM, "R-help on behalf of Ogbos Okike"
<r-help-bounces at r-project.org on behalf of giftedlife2014 at gmail.com>
wrote:
Dear Contributors,
I am surprised that I cannot add legend to a certain plot. Although the
x-axis indicates years, the actual data was in year, month and day format.
I then used as.Date to play around and get what I am looking for. I am,
however, worried that I cannot add legend to the plot no matter how I
tried. Looking at the axis, I tried:
legend(1998,3, c("Climax", "Thule", "Sopo"),
lty = 1, col c("black","red","blue")). I also
tried:
legend(as.Date(1998-02-10),3, c("Climax", "Thule",
"Sopo"), lty = 1, col
c("black","red","blue"))
but no result and no error.
I have attached the plot in case it will assist in your suggestions.
Many thanks for your time.
Ogbos
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.