我有这个代码
library(plyr)
library(readxl)
library(XLConnect)
#Set the Path
layout_path <- "/rdrive/my_test/"
output_path <- "/rdrive/my_test/"
filenames <- list.files(path = layout_path , pattern="*xls", ignore.case=TRUE)
filecount <- length(list.files(path = layout_path, pattern="*xls", ignore.case=TRUE))
err_fs =
for (f in filenames) {
tryCatch(
{
nverr <- read_excel(paste(layout_path,f,sep=''), sheet = 1, col_names = FALSE, range = cell_cols("A:A"))
},
error=function(err) {
filenames[names(filenames) != f]
cat("File doesn't appear to open:", f, conditionMessage(err), "\n")
})
}
尽管其他所有内容似乎都正常运行,但filenames [names(filenames)!= f]无法从列表“filenames”中删除错误的文件名。我什至尝试了数字方法,但总的来说..可能是因为它在错误函数中吗?
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最佳答案
您可以创建一个 vector 来存储结果,如果文件正确读取,则将其转换为"success"
,如果出现错误,它将保持空白。
file_read <- character(length(filenames))
for (i in seq_along(filenames)) {
tryCatch(
{
nverr <- read_excel(paste(layout_path,filenames[i],sep=''), sheet = 1, col_names = FALSE, range = cell_cols("A:A"))
file_read[i] <- 'success'
},
error=function(err) {
cat("File doesn't appear to open:", f, conditionMessage(err), "\n")
})
}
然后,您可以删除不成功的文件。newfilenames <- filenames[file_read != 'success']
关于r - 遇到错误时,从列表中删除文件名,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/63590571/