r Format numbers with 0 and dashes -


i dealing numbers below

   12344   233345  7233433  9343883  3432837

i trying format these number such of same length , dash (-) after every 3 numbers. final expected results should below.

  0-012-344   0-233-345   7-233-433   9-343-883   3-432-837

any on formatting these numbers way appreciated.

try formatc:

formatc(x, width = 7, format = "d", flag = "0", big.mark = '-') # [1] "0-012-344" "0-233-345" "7-233-433" "9-343-883" "3-432-837"

the data used:

x <- scan(textconnection('12344 233345 7233433 9343883 3432837'))

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