On Sep 30, 2011, at 2:10 PM, Mike Gibson wrote:
I can't figure out how to add tick marks on both my X and Y axis.
For example, my X axis ranges from 0 to 1 and there are both a tick
mark and a number label at the X-axis values of 0.2,0.4,0.6. and
0.8. I want to add tick marks to the figure at every 0.1 value.
This will help a viewer determine the values on the x axis.
I included all of my code.
But no data. So the only testing was done on help page example.
I apologize but it is very long. I am created a contourplot figure
that will be a jpg. I also included my notes after the # sign so
you can see what I am doing. Any help would be greatly appreciated.
The usual way to modify the default features and locations of ticks
inside lattice plots is with arguments presented as "scale" values. As
an example to the help(contourplot) example I added:
scale=list(x=list(at=seq(4,20, by=5))),
... and instead of ticks at 5,10,15, 20, I get them at 4,9,14,19
?xyplot
--
David.
jpeg(file="C:/Documents and Settings/Michael/My Documents/Mike/
amberjack/Reefs_Model/YPRlevel.jpg", width=8,height=8, unit="in",
res=300) #location of file and size
x<-contourplot(YPR~F*Length, data=yprplot2,
at
=
c
(2.0,3.0,4.0,5.0,5.5,6.0,6.25,6.5,6.75,7.0,7.12,7.25,7.35,7.45,7.5),
ylim=c(25,40), xlim=c(0,1),xlab = "Fishing Mortality Rate", ylab =
"Minimum Size (inches)",
panel=function(...){ #This step adds the point for the current
YPR value, ... means to leave the function open to bring in other
functions
panel.levelplot(...)
grid.points(0.609,30,pch=8) #pch is the point character where
19 is a closed circle
grid.points(0.333,30,pch=8) #pch is the point character where
19 is a closed circle
grid.points(eumetric$F, eumetric
$Length,pch=18,gp=gpar(col="black", cex=.9))}) #add the eumetric
line and make them points
#now add the text for the current ypr location
print(x) #this brings up the figure I already made
grid.text('Fcurrent',0.62,0.35,gp=gpar(col="black", cex=1)) #0.42
and 0.40 is the location of the text on the figure
grid.text('Fmsy',0.38,0.35,gp=gpar(col="black", cex=1)) #0.42 and
0.40 is the location of the text on the figure
dev.off() #it won't send the pdf until this is added. It turns
off the pdf function
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and provide commented, minimal, self-contained, reproducible code.
