合并或由rownames组合 [英] Merge or combine by rownames

问题描述

在下面的例子中，我有两个数据集（Z和A）。我想通过ILMN号合并或组合这些集合。如果没有匹配，请填写NA。

In the example below I have two datasets (Z and A). I want to merge or combine these sets by the ILMN numbers. If there is no match, fill in NA.

z <- matrix(c(0,0,1,1,0,0,1,1,0,0,0,0,1,0,1,1,0,1,1,1,1,0,0,0,"RND1","WDR", "PLAC8","TYBSA","GRA","TAF"), nrow=6,
    dimnames=list(c("ILMN_1651838","ILMN_1652371","ILMN_1652464","ILMN_1652952","ILMN_1653026","ILMN_1653103"),c("A","B","C","D","symbol")))

t<-matrix(c("GO:0002009", 8, 342, 1, 0.07, 0.679, 0, 0, 1, 0, 
        "GO:0030334", 6, 343, 1, 0.07, 0.065, 0, 0, 1, 0,
        "GO:0015674", 7, 350, 1, 0.07, 0.065, 1, 0, 0, 0), nrow=10, dimnames= list(c("GO.ID","LEVEL","Annotated","Significant","Expected","resultFisher","ILMN_1652464","ILMN_1651838","ILMN_1711311","ILMN_1653026")))

结果将如下：

             [,1]         [,2]         [,3]         [,4]
GO.ID        "GO:0002009" "GO:0030334" "GO:0015674"  NA
LEVEL        "8"          "6"          "7"           NA
Annotated    "342"        "343"        "350"         NA
Significant  "1"          "1"          "1"           NA
Expected     "0.07"       "0.07"       "0.07"        NA
resultFisher "0.679"      "0.065"      "0.065"       NA
ILMN_1652464 "0"          "0"          "1"           PLAC8
ILMN_1651838 "0"          "0"          "0"           RND1
ILMN_1711311 "1"          "1"          "0"           NA
ILMN_1653026 "0"          "0"          "0"           GRA

推荐答案

使用 match 返回您所需的向量，然后将 cbind 它返回到您的矩阵

Use match to return your desired vector, then cbind it to your matrix

cbind(t, z[, "symbol"][match(rownames(t), rownames(z))])

             [,1]         [,2]         [,3]         [,4]   
GO.ID        "GO:0002009" "GO:0030334" "GO:0015674" NA     
LEVEL        "8"          "6"          "7"          NA     
Annotated    "342"        "343"        "350"        NA     
Significant  "1"          "1"          "1"          NA     
Expected     "0.07"       "0.07"       "0.07"       NA     
resultFisher "0.679"      "0.065"      "0.065"      NA     
ILMN_1652464 "0"          "0"          "1"          "PLAC8"
ILMN_1651838 "0"          "0"          "0"          "RND1" 
ILMN_1711311 "1"          "1"          "0"          NA     
ILMN_1653026 "0"          "0"          "0"          "GRA"  

PS。 被警告 t 是用于转置矩阵的基本R函数。通过创建一个名为t的变量，可能会导致您的下游代码混淆。

PS. Be warned that t is base R function that is used to transpose matrices. By creating a variable called t, it can lead to confusion in your downstream code.

这篇关于合并或由rownames组合的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！