zeroPad: Pad string with leading zeros

In usgs/dataRetrieval: Retrieval Functions for USGS and EPA Hydrologic and Water Quality Data

Description

Function to pad a string with leading zeros. Useful for parameter codes and USGS site IDs.

Usage

zeroPad(x, padTo)

Arguments

x	character
padTo	number Final desired length of the character

Value

x character returned with leading zeros

Examples

pCode <- '10'
correctPCode <- zeroPad(pCode,5)
pCodes <- c('100','1000','0','12345','1565465465465465')
correctPCodes <- zeroPad(pCodes,5)
pCodeNA <- c(1,2,NA)
padPCodeNA <- zeroPad(pCodeNA,4)

usgs/dataRetrieval documentation built on Feb. 27, 2021, 12:40 a.m.