search for: scandate

Hi, I have an input data > dput (input) structure(list(ScanDate = structure(c(16433, 16440, 16447, 16454, 16461, 16468, 16475, 16482, 16489, 16496, 16503, 16510, 16517, 16524, 16531, 16538, 16545, 16552, 16559, 16566, 16573, 16580, 16587, 16594, 16601, 16608, 16615, 16622), class = "Date"), OnPromotion = c(0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1,...

...see that others get this message when trying to plot dates. However, my data are two numeric vectors. The strange part is that these vectors are in fact date differences -- they started life as dates -- but I've already converted them to numeric, like so: $ cogdiff <- as.numeric(cogdate - scandate)/365.24 $ labdiff <- as.numeric(labdate - scandate)/365.24 When I check is(cogdiff) and is(labdiff) it tells me that both are numeric vectors. And if I put these variables into other plotting routines (e.g. plot(), qplot()), I get the expected output. So on some level the conversion to numeri...

...cdf.qcdef I than try to run the analysis again: > data <- ReadAffy() > data AffyBatch (storageMode: lockedEnvironment) assayData: NA features, NA samples element names: exprs protocolData sampleNames: 10_w1h_021110.CEL 11_wbh_021110.CEL ... 9_dch_021110.CEL (12 total) varLabels: ScanDate varMetadata: labelDescription phenoData sampleNames: 10_w1h_021110.CEL 11_wbh_021110.CEL ... 9_dch_021110.CEL (12 total) varLabels: sample varMetadata: labelDescription featureData: none experimentData: use 'experimentData(object)' Annotation: drosophila2 when I start the analy...