Convert numeric to character with padding

This will pad floating point numbers, right or left. For integers, either class integer or functionally integer (e.g., 1.0), it will not pad right of the decimal. For more specific control or to get exact padding right and left of decimal, try the stringi package. It will also not do any rounding. See examples.

paddedFloatToChar(x, padL = ceiling(log10(x + 1)), padR = 3, pad = "0")

Arguments

x

numeric. Number to be converted to character with padding

padL

numeric. Desired number of digits on left side of decimal. If not enough, pad will be used to pad.

padR

numeric. Desired number of digits on right side of decimal. If not enough, pad will be used to pad.

pad

character to use as padding (nchar(pad) == 1 must be TRUE).

Value

Character string representing the filename.

Author

Eliot McIntire and Alex Chubaty

Examples

paddedFloatToChar(1.25)
#> [1] "1.250"
paddedFloatToChar(1.25, padL = 3, padR = 5)
#> [1] "001.25000"
paddedFloatToChar(1.25, padL = 3, padR = 1) # no rounding, so keeps 2 right of decimal
#> [1] "001.25"