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我想從表達式集的phenoData中選擇列。我要處理的數據是特定的。 (C 1,2 -從表達式集的phenoData中選擇列R
names(pData(teset))
[1] "time" "status" "Age" "Gender"
[5] "TCGA_tumor_type" "Tumor_stage" "Tumor_grade"
我只希望在不pData所第一兩列的teset數據,即以pData所(teset)[所有exprs數據,:teset的
class(teset)
[1] "ExpressionSet"
attr(,"package")
[1] "Biobase"
teset
ExpressionSet (storageMode: lockedEnvironment)
assayData: 19420 features, 253 samples
element names: exprs
protocolData: none
phenoData
sampleNames: TCGA-CV-7091-01A-11D-2012-08 TCGA-CJ-4875-01A-01D-1373-10 ...
TCGA-25-1626-01A-01W-0615-10 (253 total)
varLabels: time status ... Tumor_grade (7 total)
varMetadata: labelDescription
featureData
featureNames: 1060P11.3 A1BG ... ZZZ3 (19420 total)
fvarLabels: EntrezID Symbol Desc Synonyms
fvarMetadata: labelDescription
experimentData: use 'experimentData(object)'
Annotation:
協變量信息)]。我怎樣才能做到這一點?感謝幫助!!!