使用R中的readLines()读取URL时,不完整的最终行发现错误

Question

我正在尝试使用R中的readLines()函数读取url的html内容.但是,我收到一条"incomplete final line found"警告消息,如下所示？在这种情况下如何跳过最后一行？任何建议将非常感谢.

x <- readLines("https://in.finance.yahoo.com/industries/technology")

Warning message:
In readLines("https://in.finance.yahoo.com/industries/technology") :
  incomplete final line found on 'https://in.finance.yahoo.com/industries/technology'

Answer 1

大多数文件缺少行尾标记,如下面的新行,所以我只使用warn = FALSE.

cat("abc\ndef\nhij", file="test.txt")
readLines( "test.txt")
# [1] "abc" "def" "hij"
# Warning message:
# In readLines("test.txt") : incomplete final line found on 'test.txt'
readLines( "test.txt", warn=FALSE)
# [1] "abc" "def" "hij"