leadZeros: Add Leading Zeros to Numbers.

In mutSignatures: Decipher Mutational Signatures from Somatic Mutational Catalogs

Description

Internal function to convert a numeric vector into a character vector, where all elements have the same number of characters (nchar). This is obtained by pasting a series of leading zeros (or other character) to each number in the input vector.

Usage

leadZeros(n, m, char = "0", na.value = NA)

Arguments

n	numeric vector whose numbers are to be transformed
m	maximum number that will be used to define how many leading zeros to attach
char	string (typically, a single character). This character is used to fill the leading space. Defaults to 0.
na.value	value used to fill mising values. Defaults to NA

Details

This is one of the core functions included in the original mutSignatures R library, and in the WTSI MATLAB framework. This is an internal function.

Value

numeric vector of length equal to length(n), where all numbers are converted to character and modified by attaching the required number of leading zeros (characters).

Author(s)

Damiano Fantini, [e-mail]

References

More information and examples about mutational signature analysis can be found here:

1. GitHub Repo: https://github.com/dami82/mutSignatures/

2. More info and examples about the mutSignatures R library: https://www.data-pulse.com/dev_site/mutsignatures/

3. Sci Rep paper, introducing mutS: https://www.nature.com/articles/s41598-020-75062-0/

4. Oncogene paper, Mutational Signatures Operative in Bladder Cancer: https://www.nature.com/articles/s41388-017-0099-6

5. WTSI framework: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3588146/

Examples

n = c(5:12, NA, 9:11)
m = 111
mutSignatures:::leadZeros(n=n, m=m)    

mutSignatures documentation built on Nov. 9, 2020, 9:06 a.m.