search for: marraylayout

Hello, I'm a french student working on a project concerning cDNA microarray. I've chosen to work with R and use the marrayClasses, marrayInput (...) packages. First, when I enter "library(marrayInput)", R warns me about a missing package called "utils" but I can't find it anywhere. Normally this package is installed when you install "base" package.

I'm tryng to use loess normalization function based on externals controls (like MSP) as in Yang et al.; 2002 paper. I work with bioconductor marrayNorm package. I identified my controls in the maControls structure of marrayLayout as a vector of 0 and 1. Is someone still use it ? for the moment I just have ... test <- maNormMain(manip.raw, f.loc = list(maNormLoess(x="maA", y="maM", z="maControls",subset=TRUE))) but answer is Error in simpleLoess(y, x, w, span, degree, parametric, drop.s...