Hello,
I am new to R and have read the documents related to graphics but have
not come across a description of how to change the maximum scale on a
graph. Below is sample code that sets up a plot window with a 0 Minimum
to 10 Maximum, X and Y coordinate system:
x <- c(1,2,3,4,5,6,7,8,9,10)
y <- c(1,1.5,2,2.5,3,3.5,4,4.5,5,5.5)
plot(0:10, 0:10, type = "n" )# setting up coord. system
points(x, y, col = "red", cex = 1.5)
I now want to change the maximum Y axis scale to 6. I am using the
'points' function to plot 'x' and 'y' because my
'real' data is X and Y
coordinate based. When I try to change the maximum Y scale to 6 as in
the following code segment, I get the following error:
plot(0:10, 0:6, type = "n" )# setting up coord. system
Error in xy.coords(x, y, xlabel, ylabel, log) :
x and y lengths differ
How do I change the maximum Y scale to 6?
Thanks,
John Fisler
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John Fisler wrote:> Hello, > > I am new to R and have read the documents related to graphics but have > not come across a description of how to change the maximum scale on a > graph. Below is sample code that sets up a plot window with a 0 Minimum > to 10 Maximum, X and Y coordinate system: > > x <- c(1,2,3,4,5,6,7,8,9,10) > y <- c(1,1.5,2,2.5,3,3.5,4,4.5,5,5.5) > plot(0:10, 0:10, type = "n" )# setting up coord. system > points(x, y, col = "red", cex = 1.5) > > I now want to change the maximum Y axis scale to 6. I am using the > 'points' function to plot 'x' and 'y' because my 'real' data is X and Y > coordinate based. When I try to change the maximum Y scale to 6 as in > the following code segment, I get the following error: > > plot(0:10, 0:6, type = "n" )# setting up coord. system > Error in xy.coords(x, y, xlabel, ylabel, log) : > x and y lengths differ > > How do I change the maximum Y scale to 6? > > Thanks, > > John Fisler >You should use ylim. plot(0, 0, type = "n", xlim = c(0, 10), ylim = c(0, 6)) --sundar
If I understand you correctl, you just want to call the point of (0,10) to be (0,6). if so have a look at text() function text(0,10, pos=2) or something like that will do. The reason why you are getting the error because your 0:10 vector is larger than 0:6 vector. Hope this helps, P.S. why are you not doing plot(x,y, col="red", cex=1.5, ylim=c(0,6)) but maybe I do not understand what you need.... Jean. On Tue, 19 Oct 2004, John Fisler wrote:> Hello, > > I am new to R and have read the documents related to graphics but have > not come across a description of how to change the maximum scale on a > graph. Below is sample code that sets up a plot window with a 0 Minimum > to 10 Maximum, X and Y coordinate system: > > x <- c(1,2,3,4,5,6,7,8,9,10) > y <- c(1,1.5,2,2.5,3,3.5,4,4.5,5,5.5) > plot(0:10, 0:10, type = "n" )# setting up coord. system > points(x, y, col = "red", cex = 1.5) > > I now want to change the maximum Y axis scale to 6. I am using the > 'points' function to plot 'x' and 'y' because my 'real' data is X and Y > coordinate based. When I try to change the maximum Y scale to 6 as in > the following code segment, I get the following error: > > plot(0:10, 0:6, type = "n" )# setting up coord. system > Error in xy.coords(x, y, xlabel, ylabel, log) : > x and y lengths differ > > How do I change the maximum Y scale to 6? > > Thanks, > > John Fisler > > ______________________________________________ > R-help at 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 >