requireVariable: Ask user the value of a variable

In cuche27/project: A Lightweight Template for Data Analysis Projects

Description

In interactive mode, this functions asks the user to type the value of a given variable. In non-interactive mode, it searchs the value in the command line arguments and it returns an error if the value does not exist.

Usage

requireVariable(name, desc = paste("Enter value for variable", name),
  what = character(), nmax = 1, alwaysAsk = TRUE)

Arguments

name	Name of the required variable
desc	Description to display
what	Type of data to read in interactive mode.
nmax	Number of values to read in interactive mode.
alwaysAsk	If the variable already exists, should the function ask a new value?

Value

Used for side effects

cuche27/project documentation built on May 14, 2019, 12:50 p.m.