many_files_recipe.R

#' I often have individual speaker data files in a nested directory structure.
#' But I also often want to read all speaker's data into R in one big data frame.
#' Here's my current best recipe.

library(tidyverse)

#' glob for the file list. This is dependent on good directory naming practices
all_files <- Sys.glob("path/speakerid*/*.csv")

df <- data_frame(file = all_files) %>%               # make a column of all of the file paths
        mutate(data = map(file, read.csv)) %>%    # map read.csv to create a list column of dataframes
        unnest(data) %>%                          # pop out the data into a big data frame
        mutate(file = basename(file))             # keep just the basename of the file for ID.