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函数内部的列操作将数据帧变为空或意外的值

分类: 技术问答 • 2022-05-31 20:50:20
问题描述：

我有一个运行良好的函数，我想通过删除其中一列并使用这些命令将另一列中的NA值转换为1来清理输出：函数内部的列操作将数据帧变为空或意外的值

df$PlateIden <- NULL 

    df$PlateNum[is.na(df$PlateNum)] <- 1

，当我直接使用我的功能之外的数据帧，但是当我在函数中使用他们我的数据框变成要么是“空”或“1”，如果任一功能的值。这些工作用过的。

这里是我的全部功能：

cleanup_safe <- function(df,addproject,adduser){ 

    colnames(df) <- "FileName" 

    df$RunDate <- str_match(df$FileName, "^[a-zA-Z ]*(\\d+)")[,2] 

    df$RunDate <- ymd(df$RunDate) 

    df$PlateNum <- str_match(df$FileName, "(?<=Plate|plate)[_ ]?(\\d)")[,2] 

    df$PlateIden <- str_match(df$FileName, "(?<=Plate|plate)[_ ]?\\d*[_ ]?([a-zA-Z])")[,2] 

    df$User <- "adduser" 

    df$Project <- "addproject" 

    df <- df[!duplicated(df[,c("User","Project","RunDate","PlateNum")]),] 

    df <- within(df, ID <- cumsum(!duplicated(df[c("User","Project","RunDate")]))) 

    df$PlateIden <- NULL 

    df$PlateNum[is.na(df$PlateNum)] <- 1 

}

下面是测试数据集

test <- c("20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot, MAF.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot, SAF.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1b, IgG-Biot, MAF.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1b, IgG-Biot, SAF.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1b, IgG-Biot.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot, MAF.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot, SAF.srbx", 
         "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1a, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1a, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1b, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1b, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1b, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2b, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2b, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2b, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3b, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3b, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3b, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4b, IgG-Biot, MAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4b, IgG-Biot, SAF.srbx", 
         "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4b, IgG-Biot.srbx", 
         "20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, MAF.srbx", 
         "20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, SAF.srbx", 
         "20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot.srbx", 
         "20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, MAF.srbx", 
         "20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, SAF.srbx", 
         "20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot.srbx", 
         "20160812_a, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, MAF.srbx", 
         "20160812_a, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, SAF.srbx", 
         "20160812_a, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot.srbx", 
         "20160812_a, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, MAF.srbx", 
         "20160812_a, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, SAF.srbx", 
         "20160812_a, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot.srbx") 

dataframe <- as.data.frame(test) 

dataframe <- cleanup_safe(dataframe,testproject,testuser)
+0

你能与我们共享的数据？ – suchait

+0

添加了测试数据集 – AwesomeeExpress

+0

您的测试数据是一个'data.frame'单个列吗？那是对的吗？如果你想分享样本数据，最好使用'dput'。 –

答

与

setDT(df) 
    df[is.na(PlateNum), PlateNum := 1].

所以更换df$PlateNum[is.na(df$PlateNum)] <- 1，你的整个会是这样的：

使用data.table

library(data.table) 

test <- c("20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot, MAF.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot, SAF.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1b, IgG-Biot, MAF.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1b, IgG-Biot, SAF.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1b, IgG-Biot.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot, MAF.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot, SAF.srbx", 
      "20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1a, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1a, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1b, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1b, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1b, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2b, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2b, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2b, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3b, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3b, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3b, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4b, IgG-Biot, MAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4b, IgG-Biot, SAF.srbx", 
      "20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4b, IgG-Biot.srbx", 
      "20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, MAF.srbx", 
      "20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, SAF.srbx", 
      "20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot.srbx", 
      "20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, MAF.srbx", 
      "20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, SAF.srbx", 
      "20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot.srbx", 
      "20160812_a, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, MAF.srbx", 
      "20160812_a, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, SAF.srbx", 
      "20160812_a, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot.srbx", 
      "20160812_a, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, MAF.srbx", 
      "20160812_a, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, SAF.srbx", 
      "20160812_a, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot.srbx") 

dataframe <- as.data.frame(test) 


    cleanup_safe <- function(df,addproject,adduser){ 

    colnames(df) <- "FileName" 

    df$RunDate <- str_match(df$FileName, "^[a-zA-Z ]*(\\d+)")[,2] 

    df$RunDate <- ymd(df$RunDate) 

    df$PlateNum <- str_match(df$FileName, "(?<=Plate|plate)[_ ]?(\\d)")[,2] 

    df$PlateIden <- str_match(df$FileName, "(?<=Plate|plate)[_ ]?\\d*[_ ]?([a-zA-Z])")[,2] 

    df$User <- "adduser" 

    df$Project <- "addproject" 

    df <- df[!duplicated(df[,c("User","Project","RunDate","PlateNum")]),] 

    df <- within(df, ID <- cumsum(!duplicated(df[c("User","Project","RunDate")]))) 

    df <- df[, !(names(df) %in% "PlateIden"), drop = F] 

    setDT(df) 
    df[is.na(PlateNum), PlateNum := 1] 



} 

dataframe <- cleanup_safe(dataframe,testproject,testuser)

这会给你的输出： -

FileName RunDate PlateNum User Project ID 
1: 20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 1a, IgG-Biot, MAF.srbx 2016-08-01  1 adduser addproject 1 
2: 20160801, Optimization, gp70_B.CaseA_V1_V2 Coupling Testing, Plate 2, IgG-Biot, MAF.srbx 2016-08-01  2 adduser addproject 1 
3: 20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 1a, IgG-Biot, MAF.srbx 2016-08-02  1 adduser addproject 2 
4: 20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 2a, IgG-Biot, MAF.srbx 2016-08-02  2 adduser addproject 2 
5: 20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 3a, IgG-Biot, MAF.srbx 2016-08-02  3 adduser addproject 2 
6: 20160802, Optimization, New lot of gp70_B.CaseA_V1_V2 Testing, Plate 4a, IgG-Biot, MAF.srbx 2016-08-02  4 adduser addproject 2 
7:     20160812, Optimization, Testing New lot of NGS, Plate 1, IgG-Biot, MAF.srbx 2016-08-12  1 adduser addproject 3 
8:     20160812, Optimization, Testing New lot of NGS, Plate 2, IgG-Biot, MAF.srbx 2016-08-12  2 adduser addproject 3
+1

谢谢Suchait！希望我理解，而原来不工作，但哦。 – AwesomeeExpress

+0

不客气。感谢您指出了这一点。因为它很奇怪。我不知道为什么最后一行代码不在函数内部工作。 – suchait

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