require(gplots) data(rtPCR) overplot( RQ ~ Conc..ug.ml. | Test.Substance, data=rtPCR, subset=Detector=="ProbeType 7" & Conc..ug.ml. > 0, same.scale=TRUE, log="xy", f=3/4, main="Detector=ProbeType 7", xlab="Concentration (ug/ml)", ylab="Relative Gene Quantification" ) # Error in lowess.default(mf[[-response]], mf[[response]], f = f, iter = iter, : # 'x' is empty # In addition: Warning messages: # 1: no non-missing arguments to min; returning Inf # 2: no non-missing arguments to max; returning -Inf ************************************** # The second example fails as well, but with: # Error in plot.window(xlim, ylim, log, asp, ...) : # need finite 'ylim' values # In addition: Warning messages: # 1: no non-missing arguments to min; returning Inf # 2: no non-missing arguments to max; returning -Inf ************************************** R version 2.4.0 (2006-10-03) powerpc-apple-darwin8.7.0 locale: C attached base packages: [1] "splines" "grid" "methods" "utils" "stats" "graphics" "grDevices" "datasets" [9] "base" other attached packages: gplots gdata gtools lme4 gam effects Hmisc coda gmodels "2.3.2" "2.3.1" "2.3.0" "0.9975-9" "0.97" "1.0-9" "3.1-2" "0.10-7" "2.13.1" Matrix reshape JGR iplots JavaGD rJava MASS lattice "0.9975-6" "0.7.1" "1.4-13" "1.0-5" "0.3-5" "0.4-12" "7.2-30" "0.14-15" _____________________________ Professor Michael Kubovy University of Virginia Department of Psychology USPS: P.O.Box 400400 Charlottesville, VA 22904-4400 Parcels: Room 102 Gilmer Hall McCormick Road Charlottesville, VA 22903 Office: B011 +1-434-982-4729 Lab: B019 +1-434-982-4751 Fax: +1-434-982-4766 WWW: http://www.people.virginia.edu/~mk9y/