从R中字符删除换行符

在这篇文章中，我们将看到如何从一个R编程语言的删除新线。

例子：

Input: String with newline: "Hello\nGeeks\rFor\r\n Geeks"
Output: String after removing new line: "HelloGeeksFor Geeks"

方法一：使用 gsub()函数

R 语言中的gsub()函数用于替换字符串模式的所有匹配项。如果未找到模式，则字符串将按原样返回。

Syntax:
gsub(pattern, replacement, string, ignore.case=TRUE/FALSE)

Parameters:
pattern: string to be matched
replacement: string for replacement
string: String or String vector
ignore.case: Boolean value for case-sensitive replacement

实施例：R t程序使用GSUB（）函数从中删除的换行符。

Syntax: gsub(“[\r\n]”, “”, string)

where

• [\r\n] is a first parameter which is a pattern to remove new lines
• “” is the second parameter that replaces when new line occurs as empty
• string is the input string of characters.

代码：

R

# consider a string
string = "Hello\nGeeks\nFor\nGeeks\n"
  
# display string
print("Original string: ")
cat(string)
  
# string after removing new lines
print("string after removing new lines: ")
cat(gsub("[\r\n]", "", string))

输出：

[1] "Original string: "
Hello
Geeks
For
Geeks
[1] "string after removing new lines: "
HelloGeeksForGeeks

方法 2：使用 str_replace_all()函数

此函数可用在stringr包也被用于从删除新的线

Syntax: str_replace_all(string, “[\r\n]” , “”)

where

• string is the first parameter that takes string as input.
• [\r\n] is a second parameter which is a pattern to remove new lines
• “” is the third parameter that replaces when new line occurs as empty

示例：使用 stringr 包从字符串删除换行符的 R 程序

电阻

library(stringr)
  
# consider a string
string="Hello\nGeeks\rFor\r\nGeeks\n"
  
# display string
print("Original string: ")
cat(string)
  
# string after removing new lines
print("string after removing new lines: ")
print(str_replace_all(string, "[\r\n]" , ""))

输出：

[1] "Original string: "
Hello
Forks
Geeks
[1] "string after removing new lines: "
[1] "HelloGeeksForGeeks"