Hmisc break points error
On Nov 28, 2011, at 7:06 PM, Emma wrote:
I am making frequency histograms using the histbackback function on
my 2 datasets. However when I try to use the brks function:
foo<-histbackback(log(fie11),
log(fie86),ylim=c(0,9),probability=FALSE,axes=TRUE,ylab=("log10
Parcel Size"),brks=16)
The graphic results in a 'NA' label for the y axis (no intervals are
returned)
What do you get with str()" > fool <- list(x=rnorm(40), y=rnorm(40)) > fbrks <- histbackback(fool, brks=c(-6, -2, -1,0,1,2, 6) ) > str(fbrks) List of 3 $ left : int [1:6] 1 7 14 13 5 0 $ right : int [1:6] 1 6 16 12 3 2 $ breaks: num [1:7] -4.5 -3.5 -2.5 -1.5 -0.5 0.5 4.5 so fool$breaks should be the breaks.
Also when I use 'summary(foo)' the break values are returned as follows: Length Class Mode left 9 -none- numeric right 9 -none- numeric breaks 1 -none- numeric Can I manually add the y axis back in so there are values displayed?
It is a base graphics implementation so you can use the title function to put in ylab, and although the axis should have been put in you can also use the axis() function.
David Winsemius, MD West Hartford, CT