R. read.table 和 paste() 错误。函数将 FALSE 从 stringsAsFactors = F 粘贴到对象

Question

我在外置硬盘有一个目录，苹果笔记本：

setwd("/Volumes/HD/1000Genomes/phased_IMPUTE2")

我想运行一个包含一些文件的 for 循环：

for(i in 1:22) {
   infile1 <-
paste("chr",i,"_cancer.impute.hap",
                sep="", stringsAsFactors = F) # 
   infile2 <- 
paste("chr",i,"_cancer.impute.legend",
                sep="", header = T, stringsAsFactors = F)

   outfile <- 
paste("chr",i,"_cancer_phased.txt",sep=" ")

   hap <- read.table(infile1)
   leg <- read.table(infile2)

   # Perform more tasks...

 }

但是，我收到以下消息：

Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") :
  cannot open file 
'chr1_cancer_impute.hapFALSE': No such file or 
directory

似乎 paste() 函数正在粘贴 stringsAsFactors = F 的 "FALSE"。我一定是犯了一些非常愚蠢的错误。有人知道这是怎么回事吗？非常感谢

Answer 1

调用 paste 时不需要 stringsAsFactor 选项，因为输出始终是字符。不用它就用 paste:

paste0("chr", 5, "_cancer.impute.hap")

[1] "chr5_cancer.impute.hap"

据我所知，stringsAsFactor 似乎被忽略了，但 FALSE 值随后被包含在串联中，从而产生了当前输出。

R. read.table 和 paste() 错误。函数将 FALSE 从 stringsAsFactors = F 粘贴到对象

R. Error with read.table and paste(). Function is sticking FALSE from stringsAsFactors = F to object

r

paste

read.table