# #设置,包括= FALSE --------------------------------------------------- knitr: opts_chunk美元集(崩溃= TRUE,发表评论 = "##" ) ## ---- 选项,eval = TRUE,回声= FALSE ------------------------------------------- 选项(showHeadLines = 3)选项(showTailLines = 3) # #——getPackage eval = FALSE --------------------------------------------------- # 如果(!requireNamespace(“BiocManager”,悄悄地= TRUE)) # install.packages (BiocManager) # BiocManager::安装(“DelayedDataFrame ") ## ---- getDevel eval = FALSE ----------------------------------------------------- # BiocManager::安装(“Bioconductor / DelayedDataFrame ") ## ---- 负载、消息= FALSE警告= FALSE --------------------------------------- 库(DelayedDataFrame ) ## ---- GDSArray ---------------------------------------------------------------- 图书馆(GDSArray)文件< SeqArray: seqExampleFileName (gds) gdsnodes(文件)varid < - GDSArray(文件,“注释/ id”)DP < GDSArray(注释/信息/ DP文件。 ") ## ---- 建设 ------------------------------------------------------------ 地区指定基金< - DelayedDataFrame (varidDP) # #只有容纳1 d GDSArrays长度相同# #——访问器 --------------------------------------------------------------- lazyIndex (ddf) nrow (ddf) rownames(地区指定基金 ) ## ----------------------------------------------------------------------------- lazyIndex (ddf) @listData lazyIndex (ddf) @index # #——lazyIndex --------------------------------------------------------------- ddf1 < -地区指定基金[1:20,]相同(ddf@listData,ddf1@listData) lazyIndex ddf1 nrow (ddf1 ) ## ----------------------------------------------------------------------------- (DelayedDataFrame信。 ") ## ----------------------------------------------------------------------------- DelayedDataFrame (DataFrame(字母)。 ") ## ----------------------------------------------------------------------------- ( <——(列表(a = 1:5, b = 6:10)“DelayedDataFrame lazyIndex ()) ) ## ----------------------------------------------------------------------------- df1 <——(ddf1 DataFrame) (df1 df1@listData暗淡 ) ## ---- singleSB1 --------------------------------------------------------------- 地区指定基金(1 = FALSE ] ## ---- singleSB2 --------------------------------------------------------------- 地区指定基金(“迪拜”,放弃= FALSE ] ## ---- singleSB3 --------------------------------------------------------------- 地区指定基金[c(真、假),= FALSE下降 ] ## ---- singleSB4 --------------------------------------------------------------- ( <——ddf1 [1:10, 2 = FALSE]) lazyIndex nrow ( ) ## ---- doubleSB ---------------------------------------------------------------- 地区指定基金[[1]]地区指定基金[[“varid”]]相同(地区指定基金[[1]],[[地区指定基金”varid "]]) ## ---- rbind ------------------------------------------------------------------- ddf2 < -地区指定基金[21:40,](ddfrb < - rbind lazyIndex (ddfrb (ddf1 ddf2)) ) ## ---- cbind,错误= FALSE ------------------------------------------------------ ( ddfcb < - cbind (varid = ddf1 (, 1 = FALSE)下降,DP = ddf1下降(,2 = FALSE)) lazyIndex (ddfcb ) ## ---- sessioninfo ------------------------------------------------------------- sessionInfo ()