R/longstringClassifier.R

In ryentes/rdy-dissertation-tools: Utilities used in the execution of my dissertation code

#' Implements the longstring classifier evaluation
#' 
#' Takes a dataframe as an argument and evaluates the performance of longstring
#' as a classifier for that dataset.
#' @author Richard D. Yentes \email{rdyentes@ncsu.edu}
#' @param x a dataframe on which to test the classifier
#' @export

longstringClassifier <- function(x, truth, cut=.4) {
  
  ls <- careless::longstring(x, avg=FALSE)
  xbar <- base::mean(ls)
  SD <- stats::sd(ls)
    
  predictions <- ifelse(ls >= xbar + (SD*cut), 1, 0)
    
  confusionMatrix(predictions, truth)
}