update function to accept maf and seg file paths

[kristenadaley]

Pull Request Checklists

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Checklist for all PRs

Required

• I tested the new code for my use case (please provide a reproducible example of how you tested the new functionality)

• I ensured all dplyr functions that commonly conflict with other packages are fully qualified.

This can be checked and addressed by running check_functions.pl and responding to the prompts. Test your code after you do this.

• I generated the documentation and checked for errors relating to the new function (e.g. devtools::document()) and added NAMESPACE and all other modified files in the root directory and under man.

Optional but preferred with PRs

• I updated and/or successfully knitted a vignette that relies on the modified code (which ones?)

Checklist for New Functions

Required

• I documented my function using ROxygen style.)

• All parameters for the function are described in the documentation and the function has a decriptive title.

Example:

#' Use GISTIC2.0 scores output to reproduce maftools::chromoplot with more flexibility
#'
#' @param scores output file scores.gistic from the run of GISTIC2.0
#' @param genes_to_label optional. Provide a data frame of genes to label (if mutated). The first 3 columns must contain chromosome, start, and end coordinates. Another required column must contain gene names and be named `gene`. (truncated for example)
#' @param cutoff optional. Used to determine which regions to color as aberrant. Must be float in the range [0-1]. (truncated for example)

• My function uses a library that isn't already a dependency of GAMBLR and I made the package aware of this dependency using the function documentation import statment.

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#' @return nothing
#' @export
#' @import tidyverse ggrepel

Checklist for changes to existing code

• I added/removed arguments to a function and updated documentation for all changed/new arguments

• I tested the new code for compatability with existing functionality in the Master branch (please provide a reprex of how you tested the original functionality)