R中数字的逗号分隔符

在本文中，我们将看到在 R 编程语言中使用逗号分隔数字。数字中的逗号分隔符将使数字清晰，当数字用逗号分隔时，我们可以轻松计数。

可以通过以下方式完成：

1. 使用prettyNum()
2. 使用格式（）

方法一：使用prettyNum()

该函数用于分隔数字。

Syntax: prettyNum(input_number, big.mark = “,”, scientific = FALSE)

Parameters:

• input_number – input number
• big mark- it is an separator such that the number should be separated by the given delimiter.
• scientific parameter – It is set to FALSE.

Return: Number separated by comma

示例 1： R 程序用逗号分隔数字。

R

# input number
x = 70589999999
  
# number sepaarted with comma with 
# prettyNum
prettyNum(x, big.mark = ",", scientific = FALSE)

输出：

'70,589,999,999'

示例 2： R 程序用逗号分隔数字与科学值

电阻

# input number
x = 45000000000000000000
  
# number sepaarted with comma with
# prettyNum scientific = FALSE
prettyNum(x, big.mark = ",", scientific = FALSE)
  
# number sepaarted with comma with
# prettyNum with scientific = TRUE
prettyNum(x, big.mark = ",", scientific = TRUE)

输出：

'45,000,000,000,000,000,000'
'4.5e+19'

注意：当科学设置为 FALSE 时，我们不会得到逗号分隔的数字

方法二：使用format()

用于用分隔符格式化数字

Syntax: format(input_number, big.mark = “,”, scientific = FALSE)

Parameters:

• input_number – input number
• big mark- it is an separator such that the number should be separated by the given delimiter.
• scientific parameter – It is set to FALSE.

Return: Number separated by comma.

示例 1： R 程序用逗号分隔数字

电阻

# input number
x = 70589999999
  
# number sepaarted with comma with  format
prettyNum(x, big.mark = ",", scientific = FALSE)

输出：

'70,589,999,999'

示例 2： R 程序用逗号分隔数字与科学值

电阻

# input number
x = 720589999999
  
# number separated with comma with
# format scientific = FALSE
format(x, big.mark = ",", scientific = FALSE)
  
# number separated with comma with
# format with scientific = TRUE
format(x, big.mark = ",", scientific = TRUE)

输出：

'720,589,999,999'
'7.2059e+11'