################################################### ### chunk number 1: lkd ################################################### #line 63 "vignettes/affyContam/inst/doc/affyContam.Rnw" library(affydata) data(Dilution) image(Dilution[,1]) ################################################### ### chunk number 2: dodef ################################################### #line 70 "vignettes/affyContam/inst/doc/affyContam.Rnw" library(affyContam) dilc = setCircRegion(Dilution, chip=1) ################################################### ### chunk number 3: lkp eval=FALSE ################################################### ## #line 73 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## image(dilc[,1]) ################################################### ### chunk number 4: getl eval=FALSE ################################################### ## #line 93 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## library(affyMvout) ## library(affy) ## library(SpikeIn) ## data(SpikeIn133) ## library(mdqc) ## library(affyContam) ## library(limma) ################################################### ### chunk number 5: doperm eval=FALSE ################################################### ## #line 101 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## s12 = SpikeIn133[,1:12] ## s12rma = rma(s12) ## mads = apply(exprs(s12rma),1,mad) ## kp = which(mads > quantile(mads,.95)) ## kppn = featureNames(s12rma)[kp] ## # these are the 18 genes found to be mostly monotone over 12 chips ## mostmr = c("203508_at", "204563_at", "204513_s_at", "204205_at", "204959_at", ## "207655_s_at", "204836_at", "205291_at", "209795_at", "207777_s_at", ## "204912_at", "205569_at", "207160_at", "205692_s_at", "212827_at", ## "AFFX-LysX-3_at", "AFFX-PheX-3_at", "AFFX-ThrX-3_at") ## ################################################### ### chunk number 6: cod eval=FALSE ################################################### ## #line 115 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## fullrun = function( abatch, arma, contFun, filtpn, targpn, chips=1, ... ) { ## # assess detectability in original data ## dvec = (1:ncol(exprs(abatch))) ## des = model.matrix(~dvec) ## af1 = lmFit( arma[filtpn,], des, method="robust", maxit=300 ) ## eaf1 = eBayes(af1) ## orig.tt = eaf1$t[targpn,2] ## # contaminate ## cbat = contFun(abatch, chip=chips[1], ...) ## if (length(chips)>1) { ## for (i in 2:(length(chips))) ## cbat = contFun(cbat, chip=chips[i], ...) ## } ## # assess detectability in contaminated data ## crma = rma(cbat)[filtpn,] ## dvec = (1:ncol(exprs(abatch))) ## des = model.matrix(~dvec) ## cf1 = lmFit( crma, des, method="robust", maxit=300 ) ## ecf1 = eBayes(cf1) ## contam.tt = ecf1$t[targpn,2] ## # now test for outliers ## caos = ArrayOutliers(cbat) ## if (nrow(caos[[1]]) < 1) { ## warning("no outliers by affyMvout") ## return(list(aos=caos, md=mdqc(caos[[3]][,2:10]))) ## } ## todrop = as.numeric(rownames(caos[[1]])) ## cbatf = cbat[,-todrop] ## # assess detectability in repaired data ## frma = rma(cbatf)[filtpn,] ## dvec = (1:ncol(exprs(abatch)))[-todrop] ## des = model.matrix(~dvec) ## f1 = lmFit( frma, des, method="robust", maxit=300 ) ## ef1 = eBayes(f1) ## repair.tt = ef1$t[targpn,2] ## # compute the mdqc result ## md = mdqc(caos[[3]][,2:10], robust="MCD") ## list(orig=orig.tt, contam=contam.tt, repair=repair.tt, md=md, todrop=todrop) ## } ## ################################################### ### chunk number 7: ddd eval=FALSE ################################################### ## #line 156 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## ff = fullrun( s12, s12rma, setCircRegion, kppn, mostmr, chips=1:2 ) ################################################### ### chunk number 8: scr eval=FALSE ################################################### ## #line 163 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## scr.40 = function (x, chip = 1, center = c(150, 150), rad = 75, vals = 30, ## valgen = NULL) ## { ## cdfname = paste(annotation(x), "cdf", sep = "") ## require(cdfname, character.only = TRUE, quietly = TRUE) ## xext = seq(center[1] - rad, center[1] + rad) ## yext = seq(center[2] - rad, center[2] + rad) ## badco = expand.grid(xext, yext) ## badco = badco[(badco[, 1] - center[1])^2 + (badco[, 2] - ## center[2])^2 < rad^2, ] ## indsbad = apply(badco, 1, function(x) xy2indices(x[1], x[2], ## cdf = cdfname)) ## if (is.null(valgen)) ## exprs(x)[indsbad, chip] = vals ## else exprs(x)[indsbad, chip] = valgen(length(indsbad)) ## x ## } ################################################### ### chunk number 9: scr2 eval=FALSE ################################################### ## #line 183 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## scr.20k = function (x, chip = 1, center = c(500, 500), rad = 75, vals = 30000, ## valgen = NULL) ## { ## cdfname = paste(annotation(x), "cdf", sep = "") ## require(cdfname, character.only = TRUE, quietly = TRUE) ## xext = seq(center[1] - rad, center[1] + rad) ## yext = seq(center[2] - rad, center[2] + rad) ## badco = expand.grid(xext, yext) ## badco = badco[(badco[, 1] - center[1])^2 + (badco[, 2] - ## center[2])^2 < rad^2, ] ## indsbad = apply(badco, 1, function(x) xy2indices(x[1], x[2], ## cdf = cdfname)) ## if (is.null(valgen)) ## exprs(x)[indsbad, chip] = vals ## else exprs(x)[indsbad, chip] = valgen(length(indsbad)) ## x ## } ################################################### ### chunk number 10: dov eval=FALSE ################################################### ## #line 204 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## incvarCircRegion = function(x, chip=1, center=c(150,500), rad=100, fac=3) { ## tmp = fac*getCircRegion(x, chip, center, rad) ## setCircRegion(x, chip, center, rad, vals=tmp) ## } ################################################### ### chunk number 11: dov eval=FALSE ################################################### ## #line 212 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## incvarRectRegion = function(x, chip=1, xinds=350:700, yinds=1:700, fac=3) { ## tmp = fac*getRectRegion(x, chip, xinds, yinds) ## setRectRegion(x, chip, xinds, yinds, vals=tmp) ## } ################################################### ### chunk number 12: compo eval=FALSE ################################################### ## #line 219 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## tryout = scr.40(s12) ## tryout = scr.20k(tryout) ## tryout = incvarCircRegion(tryout) ## fin = incvarRectRegion(tryout) ## png(file="lkcomp.png") ## image(fin[,1], main="composite contamination") ## dev.off() ################################################### ### chunk number 13: doruns eval=FALSE ################################################### ## #line 229 "vignettes/affyContam/inst/doc/affyContam.Rnw" ## d1b = fullrun( s12, s12rma, scr.40, kppn, mostmr, chips=1 ) ## save(d1b, file="d1b.rda") ## d2b = fullrun( s12, s12rma, scr.40, kppn, mostmr, chips=1:2 ) ## save(d2b, file="d2b.rda") ## d3b = fullrun( s12, s12rma, scr.40, kppn, mostmr, chips=c(1:2,11) ) ## save(d3b, file="d3b.rda") ## H1b = fullrun( s12, s12rma, scr.20k, kppn, mostmr, chips=1 ) ## save(H1b, file="H1b.rda") ## H2b = fullrun( s12, s12rma, scr.20k, kppn, mostmr, chips=1:2 ) ## save(H2b, file="H2b.rda") ## H3b = fullrun( s12, s12rma, scr.20k, kppn, mostmr, chips=c(1:2,11) ) ## save(H3b, file="H3b.rda") ## I1b = fullrun( s12, s12rma, incvarCircRegion, kppn, mostmr, chips=1 ) ## save(I1b, file="I1b.rda") ## I2b = fullrun( s12, s12rma, incvarCircRegion, kppn, mostmr, chips=1:2 ) ## save(I2b, file="I2b.rda") ## I3b = fullrun( s12, s12rma, incvarCircRegion, kppn, mostmr, chips=c(1:2,11) ) ## save(I3b, file="I3b.rda") ## R1b = fullrun( s12, s12rma, incvarRectRegion, kppn, mostmr, chips=1 ) ## save(R1b, file="R1b.rda") ## R2b = fullrun( s12, s12rma, incvarRectRegion, kppn, mostmr, chips=1:2 ) ## save(R2b, file="R2b.rda") ## R3b = fullrun( s12, s12rma, incvarRectRegion, kppn, mostmr, chips=c(1:2,11) ) ## save(R3b, file="R3b.rda")