Hi all, I'm currently using the package GenomeGraphs for the vizualization of different types of biological data. Additionally to this data, I want to vizualize ChIP-Chip scores in this figure. For this purpose, I generated an object of class "GenericArray". The attribute "intensity" contains the scores, the attribute "probeStart" contains the start and "probeEnd" the end of the enrichment score. However, I encounter a problem in the vizualization of this object when using the "probeEnd" attribute. For example the following snippet works: gdPlot(makeGenericArray(probeStart=c(1,5),intensity=matrix(c(1,2),ncol =1)),minBase=0,maxBase=10) but using "probeEnd" leads to an error... gdPlot(makeGenericArray(probeStart=c(1,5),probeEnd=c(2,7),intensity=ma trix(c(1,2),ncol=1)),minBase=0,maxBase=10) Maybe, someone has an idea to circumvent this problem. Or maybe a better idea of vizualizing scores using GenomeGraphs. Cheers, Philippe [[alternative HTML version deleted]]